guys .an 8 ohm speaker is 3db more efficient than a 4 ohm..it this amp is 250w at 4 ohms it means at 8 ohms is 125 watts.even the 8 ohm driver receives half the powet it plays the same loudness with the 4 ohm.this means that with 8 ohms the amp will be much less stressed than with 4 and it will play cleaner. an additional benfir is the damping factor of the amplifier will be double at 8 iohms.of course the current demand from the cars electrical system will be half for the same loudness.if you add two 8 ohms drivers in paralel eveything will be as a 4 ohm one but it will be 6db louder which is a huge difference
4 vs 8 Ohm isnt really a power thing. if you close your eyes you can hear the difference between them. its not volume, its tone and texture of the different ranges. the 8 ohm sounded "thicker" at the lower ranges, but muffled the mids and highs. where as the 4 ohm lost some of the meaty bass, but gained more crisp sound in the mids and highs. when I put together a system a couple decades ago, I used 8 ohm subs and used 4 ohm mids and tweeters, I would have taken the tweets to 2 ohm but they just werent around back then really. but I had an incredibly rich sounding stereo. heavy base that you could feel passing through you, and crystal shattering highs. now I wish I could get something other than 2 or 4 ohm speakers for my motorcycle :(
Its the best comment on this video, Ive heard that too yesterday doing car audio and switching between 8 and 4 ohm subwoofer, 8 ohm just crashed it, you could close your eye and just relax deeping through that smoothness of bass vibrations, that meat! Difference in night and dat!!!! Even by not an audiophile person next to me. Otherwise wiring 4ohm speaker the bass was easier controlled right and louder, but it was only loudness and not quality itself it was not comparable, maybe some mids and highs would be better at 4ohm but not for a bass, it needs to be hell thick and dynamic which only maybe top high end 4ohm speaker give you, comparable to casual 8ohm. Peace out! And have a good 8ohm subs in ur trunk!
Thanks this helped me how to design a sound setup for a pinball machine..understanding the output. Now are those driving by individual amps? If I remember on my home theater amp I can set the ohm ratings per channel though. I also bike too.. ride safe
It took me a while to finally find this comment. I have a pair of beautiful PHD AF 12" 4ohm each, that will be pushed by RF T20001BD. The amp should give them enough power at 8ohm load. What you think?
@@sebastianfonk1281 I havent dealt with Rockford Fosgate a whole lot. especially this high of wattage as most my experience with them is in the motorcycle applications. they are good but they always seemd to be a bit "meh" on note for note quality, but they have among the best for controls. being as you are using it for base, it would fall more to type of music. Rock/metal should have a decent snappiness to it. overly muted "rap" style base will likely be snappier, but thats not the general goal of rap style music where it tends to be long low notes. but would def suggest getting a good crossover to delete the ranges you dont want pushed through subs. even if you dont hear those notes anyways, if the signal contains those ranges it will reduce your clarity of the notes you want coming from them. make sure the box is properly built whether ported or un-ported. I wouldn't go with off the shelf boxes unless the box is specifically built by the maker of the speaker. the boxes off the shelf will 99.9% of the time be the wrong size and give to much air or not enough and/or have the wrong port sizes. you should be fine over all as long as you don't try to rush from the point you are at to a finished system.
The less ohms the more power it draws from the amp mike it might not be noticeable at low volume but crnk that volume up and youll smell some smoke from the 4ohm speaker first.if you have really good amp and you want more speakers you can have 4 8ohm speakers per channel to a final load of 2 ohm per channel vs only 2 4ohms tht make the same 2ohms final load per chanel so you tell me if 8 speakers vs 4 speakers makes diference with 8 speakers if you have the room you.can have way more punchy middbass or nice and clear vocals
well said. running higher impedance speakers also allows amp relax and be more efficient less current draw and cleaner sound 2 ohm vs 4, 4 sounds cleaner amp runs cooler and efficiency goes up less taxing on the poor at best electrical system most have. once you go full retttard and spend thousands you care much less about this and just want the sound you like no concern given to the price or efficiency. small sacrifice of db allows for cheaper build too for beginners who cant afford big 4 and 4/0 and mechman alts and... it never ends but a budget multi amp system can be built on stock electrical if done right and using these options to your advantage. at the sacrifice of a little spl but you can always buy more later. car audio does not have to be for the wealthy alone just read more books and stop believing everything you read in forums 90% is hogwash you dont need 155db @ 30hz to have fun with this hobby but it does help ;P
and i band pass my mids they get mids only if you have too large of a range per cone it gets muddy and builds more destructive heat ( your number 1 enemy is clipping number 2 is heat ) and i can grossly over power my mids by keeping them this way you want highs get some tweets never full range mids with real power once the magic smoke comes out its a paper weight
Hi I have a small doubt. please give your expertise,I am planning to build a diy soundbar with 2.0 amplifier board (stereo left n right channel), can I add 1 woofer to the amp,(thereby total 3 speaker for a two channel amp). the impedance of amp is min 8ohms..
@@fusion_fever1592 im not expert but if the amp is capable of bridge mode i think you might be able to ger away with it but keep in mind you must add something that cuts the mids and hight only to the subwoofer.. i sugest get a 3 or 4 channel amp and play it safe if you dont know what youre doing or do some more reserch before damaging your equipment
@@michaelsegarra2709 thanks for the reply, the way my mind is thinking after watching lots of UA-cam video on impedance is as following,the amp is a 2 channel stereo with 8ohm impedance,so I will a 8ohm speaker for the left channel,and now I will add my 4ohm woofer and a 4ohm speaker to right channel in series, thereby giving a total impedance of 8ohm on right channel (4+4 =8),thus meeting the requirements of the stereo amp at 8ohms..
My friend the difference is if you take 2 and 8 ohm speakers are that you can bridge them together that will make 4 ohms impedance so if you have a 4-ohm amp you can hook two speakers to one channel and stay at 4 ohms, or if the amplifier is a 2 ohm amplifier you can hook 4 speakers on each channel.
The only difference i hear is frequency response is way better on the 8ohm…the 4 ohm is kind of beaming at certain frequencies. As an audiophile i choose the 8ohm for clarity reasons but for power and noise value i say choose the 4ohm. Its cheaper to make given watts @ 4 ohm than @ 8ohm to make 200w rms @ 8ohm is probably 4x the price. Amp to speaker matching is very important as well.
Glad you don't hear much of a difference so you don't regret it. For me, there is a huge difference. The 8 ohm is much more clear. I am also rocking a nice sound system, so that probably makes it so I can hear more.
8 ohm means there's a rest between each bass kick(making it a clean kick like "Boom" - "Boom" - Boom"), the lower the ohm the more the bass overlaps without a break in between each hit(Booommmbooommmbooooommmmmmm no break between each bass Kick more of a continuous bass sound overlapping one another, this is usually at 1 ohm or half ah ohm, this is also why it causes the amps to run so much power/so hot that you could smell the speaker coils because there's no rest just continuous overlapping bass) hope this helps ..........
One more thing a amp running 5000 watts rms at 8 ohm is a hell of a powerful amp, compared to a 5000 watt RMS amp running at 1 ohm or half ah ohm, the 8 ohm is going to be way louder, more like concert speakers with ever kick of the Bass, The one ohm or half ah ohm will only win if the bass is a set continuous synthesizer bass in the music you're listen to, if not you won't even notice!!! One thing to remember though running a 5000w RMS at 8 ohm is way more expensive than running it at 1 ohm or below and the 8ohm will sound 1000% better and louder )......... ✌❤🙏
Going from an 8 ohm to a 4 ohm doubles the load on the amp, when you double the power to a speaker, you get a 3db increase. Doubling an amp power to a given speaker doesn't double the sound output, you get around a 3db increase. Humans can detect a 3db increase but it's not twice as loud, you would need a 10db increase for it to be perceived as twice as loud.
@@Hayawasa True, a 3db in amplifier power which efectly is a doubling of power at any impedance of the speaker curve. A speaker impedance is rated at its lowest point on it's impedance curve but is sometimes much higher within the speaker bandwidth .
@@Hayawasa, 1 NYC DJ is spot on. The "3dB measurement" here is derived from the formula. The formula for power is, dB = 10 * Log (Pout/Pin), and for voltage is, dB = 20 * Log (Vout/Vin). In this case, 4Ω will draw twice the power than that of the 8Ω. So, we use the power equation and find the Log of 2, which is 0.301, then we multiply it by 10 for 3.01dB. This is where the 3dB measurement is coming from. Each doubling of power equates to a gain of 3dB according to the equation. The difference between a 4Ω and 8Ω speaker has never been a comparison between twice or half the perceived volume. The difference is merely a doubling or halving in power. An 8Ω load will always be -3dB when compared to a 4Ω counterpart with the same sensitivity at 1W and with the same voltage applied. The reason for this is because of the power difference. 2.83Vrms = 1W into 8Ω but 2W into 4Ω. An 8Ω load with a sensitivity of 90dB will be 90dB at 2.83Vrms and the 4Ω load with the same sensitivity at 1W will now be 93dB because the voltage is the same and 2.83Vrms = 2W into 4Ω. That same 8Ω speaker is now 93dB at 2W, but the 4Ω speaker is now at 4W and 96dB. 96bB with 4W into 8Ω and 99dB with 8W into 4Ω....etc. (Adding 3dB with each doubling of power). An increase of 6dB is a doubling of voltage, which also represents a quadrupling of power. An increase of 10dB is required in order to yield a doubling of the perceived volume (SPL). An increase in 10dB just so happens to equal 10 times the power when plugged into the formula appearing as though it's linear, but the decibel isn't linear, it's exponential. It takes 10W to be twice as loud as 1W, 100W to be twice as loud as 10W, 1000W to be twice as loud as 100W, 10kW compared to 1kW...etc. It requires 10 times the power regardless of impedance to effectively double the loudness. A change of 3dB can never be close to or over 4 times as loud regardless of frequency. It won't even be close to twice as loud. That completely violates physics. Four times as loud requires an increase of 20dB, not 3dB. The most important rule to remember in electronics is that we can't violate physics, it can only violate us.
@@Hayawasa I was covering the theory of it. In reality, there is no such thing as perfection, nor is electronics an exact science to begin with. The math is our guideline, but it's certainly not ever dead nuts on...that's for sure. The figures will realistically be even less due to the limiting mechanical factors of the speaker itself. But those things go far beyond the scope of what I was trying to illustrate. I agree. There's a lot of variables at play. There is no dead nuts answer. It's about trial and error when it comes down to it.
@@Hayawasa The science of sound and the science of electronics are based on the same thing....physics. Smh...quit stroking it already. If you want to go that route and get all butthurt, then I'll go on to say that I don't think some of your comments are false. I know some of them are. You're talking nonsense and only making sense to yourself. I'm just as inclined to learn something new as the next guy, but learning bs pseudo-science isn't my bag of chips. I know better than that, my friend. I have a degree in electronics. You're not fooling me by any stretch of the imagination. I was just trying to help, not get into a pissing match. That would be you. I will leave you to wallow in your delusions.
Good question, I would like to know the title/artist too (And double up on that, Shazam sends me to different sheit in perpetuality - even to the outhouse!) So could you please please kindly share the secret title/artist with us? :)
A couple of factors. First off, it will depend on speaker efficiency, if you have a 4ohm driver with a lower efficiency rating than a 8 ohm drive that has a higher rating, then the amount of output will be close. Also the amplifier has a part in it. Not all amps produce double the power when you cut the impedance in half. Some will, some won’t. So it depends on the amp’s out put on impedance and the efficiency of the speaker’s Thiel small parameters. That’s why some speakers sound louder than others with the same amplifier. Efficiency = power output
"NOT ALL AMPS DOUBLE THE POWER WHEN YOU CUT IMPEDENCE IN HALF" i would recomend you to take a look again at ohms law, the amplifier doesn't "doubles" the power when you go from 8 ohms to 4. The power is already there and it will not be doubled, it's simple ohms law and it states that "the power decreases if the resistance increases". So if you go from 4 to 8 you are increasing IMPEDENCE hence power decreases. And every amp in the world does this and not just few amps like you mentioned. Peace.
@@burhanuddin127 hello i have a question and hope i get an answer and is that i have a taramp 800x4 2ohms and i have installed already 4 prv neodymium that are 4 ohms with 2 PRV super tweeters that are 8ohms and i’m planning changing them to another prv model and i wanted to know which speaker is better for me an 8ohms or a 4ohms?
They're both 250 watt drivers/speakers. They should produce same quality sound in design. It's totally depend on how much the powered amp can produce in 8 ohm or 4 ohm channels, and the wiring here too. Please check the amplifier power outputs in manual or specs! It's missed leading fact or myth busted!
Higher ohms means less power draw, so in a power limited set up like a 70 amp alternator would I be better to use 8 ohm speakers and pump more power to the subwoofer? I don't like my music in my car very loud so volume wont be an issue.
Your speakers were 8 ohm and louder than your friends 4ohm speaker. .I always thought 8 ohm was more clear and .the 4 ohm wil distort first at higher volume @@michaeltursack5470
Ok all amps are rated to do power at certain ohm loads eg the amp will says 500 at 4 ohm and 1000 at 1 ohm the speakers will tell the amp what power to put out so yes the 4 ohm will play louder than the 8 ohm on the same amp anyway great video watching from trinidad and just a little advice doubling the power on a speaker doesnt mean it will play twice as loud it doesn't work that way
I like this vid. So many people misunderstand ohm law etc. and how a 2 omh speaker is not automatically louder than a 4 ohm or even an 8ohm of the same speaker. 8 ohm is actually easier on the components and amps, etc., and 8 ohm also is easier to control the flow of power than either 4 ohm or 2 ohm. The lower the ohm rating of a speaker, etc., inherent is a reduction in clarity, etc.--quality--and the power is also harder to control and the ohm rating goes down.
majority of car stereo amps (stock stuff) do not boost the voltage in the amp section (good amps do), so they only have 12V, 4Ω easily wins to drive more power in this situation. This is why there is 4Ω speakers. And as Resonant Engineering said, lower ohms can be higher power rating, its not just ohms law, its also the power law.
@Jim Catanzaro Ya. I was building systems back in the '90s. Maybe I'm getting old, but every system I hear runnint A/B amps always sound better than even the best class D; although, plenty of people will disagree. And that's fine. they can disagree all they want until they hear a sub running off a/b and same for door speakers. a/b amps push-pull by their design. It's more dynamic, they are faster, which means speakers run faster, and subwoofer sounds amazing on an a/b.
Ohm is the electrical resistant in a circuit. So it really won't change sound. It will just take more amps / power to get the same volume on a higher ohm speakers. But you can also overheat and damage the speakers, stereo, or amplifier if you run the channels / circuit on the ohm range it wasn't designed for. If you run /wire two speakers, in parallel, it will drop the ohms / resistants by half. Ex: The positive and negative from the speakers are both connected together to the same corresponding terminals on the channel. Then, if you run / wire the speakers in a series, it will increase the ohms / resistance of them. Ex: Positive from one speaker goes to the negative of the other.
Pro and home speakers tend to be 8 ohms. Car speakers are almost always 4 ohms. Why? Because an amplifier is more efficient when driving a 4 ohm load. You get more power at 4 ohms. Car amps and head units would be twice their size if they were 8 ohms. That 14 watt per channel car head unit would drop down to 7 watts if driving an 8 ohm speaker. In your test you didn't really push your amp to high levels. So at low levels both speakers will perform well. Midrange speakers tend to be very efficient so most of the time there is no need to push them hard with lots of power. Where there will be a difference is in driving speakers that would benefit from the extra power which would be woofers and subwoofers. Generally you are going to see a +3db difference in spl between these two speakers. Often this small amount is hard to hear. +6db is very noticeable.
i built my own 3 way house speakers using 2 ,4 ohm 10 inch sub woofers for car audio and 2 6.5 midbass 8 ohm car speakers and 8 ohm tweeters! i have a total of 400 watts i am pushing with my house stereo and they sound great , i also built my own crossovers i love my music loud and havnt had my stereo over half way yet on volume and it shakes my whole apartment building! lol
Thanks for the great videos. I look forward to the competitions. The difference in 4 ohm and 8 ohm speakers is the ohm load they put on the amplifier. The 4 ohm speaker will make the amplifier run in 4 ohm mode which is usually twice the power as it puts out in 8 ohm. So if you have two speakers a (4 ohm and 8 ohm)on the same amp but different channels, the 4 ohm channel is putting out double the watts as the 8 ohm channel. That means the 4 ohm speaker will be louder than the 8 ohm speaker but only by a few decibels. Also, when the amplifiers ohms are dropped from 8 to 4 to 2 or even 1 ohm the distortion levels usually increase in output. So using a 4 ohm speaker would double the power and increase distortion when comparing it to the 8 ohm. When comparing speakers the ohms need to be the same. Thanks again you've helped me choose which mids I'm going to purchase!
Thank you for your advice but I got a question I can't get answered. Surely it is simple. A 8ohm speaker rated for 150watts rms will always need 150watts rms, even when wired down to 4ohm right? Or when wiring it down to 4ohm should I only give it 75watts now?
@@RandoManFPV Yes. That is what is rated doesn't matter wether you are in 8 or 4 ohm. Ohms are for figuring out which way you will run the speakers for the AMP. The AMP will tell you what OHM to run the speakers in for best or max output.
@@jadm4850 thanks man!I thought I had all this figured out haha. Heck I already knew the answer to my own question but the more I thought about it the more unsure I felt 😅
same loudnes but 4 ohms is slightly liter than 8 ohms in producing sound quality.. and also maybe in the range level of volume will give more push on 8 ohms. same loudness but not same punch on the sound.
Maybe you could do 2 x 8 ohms wired to 4 ohms on one channel VS 1 x 4 ohm speaker. Or 2 x 4 ohm speakers wired to 8 ohms VS 1 x 8 ohm speaker. Can I assume on a 5 channel cerwin Vega amp that I can run 2 x 10 inch subs at 2 ohms and mids at 4 ohms on the stereo channels? Or should I keep the sub channel at 4 ohms also?
Most power amp manufactures list the power output at 4 Ohm, and 8 Ohms. Sound pressure level i.e. Decibels is measured on a logarithmic scale, so doubling the power will not double the sound pressure level. That's why the volume control on a receiver or amp is an audio tapper (Logarithmic) and not a linear tapper, Potentiometer or rheostat. The speaker's voice coil sensitivity rating also affects the sound pressure level output. The higher the sensitivity rating, the louder your speaker is. An average speaker comes with a sensitivity of around 87 dB to 88 dB. A speaker with a sensitivity rating over 90 dB is considered excellent.
the biggest point to 8ohm in my experience is if you have a crappy stock system, what a bit more boom with a better sub cone, but don't want to tear everything out to drive a 4ohm sub, and get the maximum out of the stock amp. They are great for the quasi audiophile who has car speakers or computer speakers with crap subs, but that's the only big point imho.
THANKS. I JUST WANTED TO REPLACE THE 4ohm WITH 8ohm IN MY $65 SUBWOOFER BOX I BOUGHT FROM EBAY. I USE IT FOR FRIDAY NIGHT COOKOUTS & ALSO IN MY BASKETBIKE WHILE CRUISING AROUND. I HAVE IT HOOKED UP TO A 2.1 CHANNEL MINI AMP. SO, SHOULD SOUND LOUDER, IS WHAT YOU'RE SAYING?
Double sound energy is 3db, the difference between some 4 and 8ohm speaker drivers. You starts hearing double the loudness at 9db. So yes, you are correct it is difficult to hear 3db difference in volume. When you played both drivers at the same time we could hardly hear the change in volume because double the energy is 3db. However it is measurable and 3db difference is significant.
Impedance matched amp to load will not have any difference. The problem is when people expect an amplifier rated for 4 ohm to drive an 8 ohm load. Its like trying to power a 220v light bulb using 120v. Same with a 4 ohm amp driving an 8 ohm speaker. You will be supplying the 8 ohm speaker with about half the voltage it requires for an expected power ouput of the 4 ohm amplifier.
Ok I don't get what you mean about same power same channel. So an amp that does 125w at 4 ohm and 65w at 8 ohm will not the 8ohm sound drastically under powered while the 4ohm is full and punchy? Or will the still sound the same? Just curious
An amplifier is a VOLTAGE source. It is a FACT that if you put the same voltage into a speaker half the impedance you will have +3dB in volume. This test assumes that the amp will put half the power into 8-ohms vs. 4-ohms which is probably not the case.
Indeed 3db headroom. I believe the 4ohm and 2ohm has better bass response than an 8ohm also the resistance of the coil will obviously have an effect on the tonal qualities
I always enjoy watching your videos. In the beginning of the video you said that one is 4 ohms and the other is 8 ohms. You also stated that they are on the same channel and if that's the case you will have a 12 ohms load on that Channel. If you have a 4 channel amplifier connect each speaker to a separate channel like 1,2 channel or 3,4 channel because those channels will have the same tuning. The amplifier will put out it separate power due to the load impedance of each speaker. Thar way the test will be more fair. I am not expecting double the power, double loudness from the 4 ohms speaker at all. And for the people who are commenting about 8 ohms lasting longer than 4 ohms. The truth is it really doesn't matter. If you match your amplifier properly with your speaker's impedance and rms wattage output then you shouldn't have any problems of amplifier overheating or speakers burning.
8ohm is for Sound Quality 2Ohm for POWA so it can get more power out of amp sacrificing sound quality. You lose power at the amp not the speaker. When the amp sees the resistance it changes the power.
It’s just like the subwoofers, the ohms are made depending on what application, generally, to match a amp for example: a 3000w 2 ohms monoblock , for match that ohm , you need two speakers at 4 ohms (4+4=2ohms load) , with a 8 ohm speaker, you will need four speakers at 8 ohms to match the 2 ohm load for the amplifier (8+8+8+8=2 ohms load). Obviously in parallel.
It could be the type of music left was definitely getting more power the voice coil was really moving compared to the right but it was still just barely louder. On the second track the right side was player louder made no sense. I was listening through 6 four inch mids with tweets house system and I could barely tell the difference.
The main difference is the amps the speaker draw from the amplifier. If you connect two 4ohm speakers the ohms drop down to 2 ohms compare to 4 ohms if you connect two 8 ohms speakers.
mike i love your videos.please let me know best pair of speaker for building diy studio monitors? woofer cone 5-8 inch, tweeter 1 inch silk dome. while it is going to be biamped
If we have use a 100w class A bjt transistor amp: it outputs current. And the speakers were the same except 4ohm 8ohm then the amp could put out 8.33 amps . Then 4ohms needs 5 amps for a 100w speaker, and 8ohms needs 3.5 amps for a 100w speaker. The higher the amps the harder the amp has to work gets hotter. Get a bigger amp and run 4 ohms or less they do sound better. Random: car amps have DC step up. Might look like 78VDC inside of car amp with 2 ohm output for 3000w.
I bought a pair of CDT 6X9S. Specifically because of 2 ohm impedance. They are the loudest speaker I've ever heard. Apparently a 2 ohm tweeter does not exist.
First of all the 8ohm and 4ohm speakers are literally EXACTLY THE SAME... the difference comes from the amplifier. An amplifier is going to put out more power at 4ohm than at 8ohm. It's half the resistance if you were to put the 8ohm speaker on an amp that does 200watts at 8ohm and the 4ohm speaker on an amp that does 200watts at 4ohm there will ABSOLUTELY ZERO DIFFERENCE BETWEEN THE 2 SPEAKERS... 8ohm speakers are there so that you can run 4 of them on 1 channel of an amp in parallel to get a 2ohm load. Most full range amps do not handle a 1ohm load per channel...
You didn't notice any different because your amp could support both, if your amp was only supporting till 8 ohm then you could feel the half power different on the 4 ohm speaker
The difference and problem starts when your amp is not powerful enough to support 4 ohm but as you said your amp is way more powerful the all these speakers
There’s a fundamental misunderstanding here. Double the ohms, doesn’t mean it will play half as loud at the same power. It means the electricity running through it, is doing so at twice the resistance… But it’s still running through it. Now, over time, if fed the same power, an 8-own speaker coil will heat up more. The wires to it will heat up more… Until eventually, the amperage will exceed that of the fuse and blow the fuse. Whereas, the speaker with less ohms, won’t be as hot, won’t draw as large an amperage, or blow the fuse (all things being equal but ohms) Lastly, as amperage increases, as the wires get hot, then you’ll start getting clipped on the lows and a ton of distortion. Why? Because though the wattage going to the VC is the same, the coil is literally trying to stop the electricity from getting to the ground… The wattage power is at war with the magnet.
Im looking to build a system for my truck .im looking to run 8 inch mids n a separate 3 inch tweeter in the doors ..what would u recommend for a 8 inch ..ive got the kicker 6.5. In the quarters n a 10 inch kicker sub in the rear ..would love your input n what amp would u run
This test probably would have been more effective using a jl or Rockford amp with the regulated intelligent power supply where it plays same power out put no matter what ohm is used I don’t think Orion made a amp with that technology I could be wrong but if that’s not what’s going on here then at 8 ohms the amp would put out less power but more efficient then the 4 ohm thus the 4 ohm being louder
intelligent power supply is just the opposite, so when your boxes impedance drops at the ports tuned frequency the "intelligent power supply" is going to see the lower ohms and cut back power? That's a stupid power supply! If you know what an impedance curve is you would realize how dumb those amps are. It's not intelligent, it's there way of making a cheap amp that won't overheat at low ohms and then trying to give it a fancy name to trick a buyer into thinking they are getting something new/cool
Heres the thing , your impedance changes with music so its almost never anywhere near 4 or 8 ohms , especially with midrange and higher frequency. If you notice they test alot of amps at 100hz and below to get the minimum ohm load and make better numbers for the amps power rating. If you dont understand what i mean put an ohm meter on the speakers terminals while playing a song. The ohms jump all over the place .
Good question, I would like to know the title/artist too (And double up on that, Shazam sends me to different sheit in perpetuality - even to the outhouse!) So could you please please kindly share the secret title/artist with us? :)
I got two b&c 10 they are supposed to be 8ohms but my multimeter read 4.8 on both speakers it’s that normal ? My think is my soundigital 2000.4 4ohms Give me 1000 at 4 ohms But when I connect my two speakers it go to 2.2 ohms it’s that normal ? Or how you guys recommend me to connect them ? Thanks
U will hear a bigger diffence at full tilt and the type of amp design some amps will double power when ohms drop some will not but 8 ohm will distort a little earlier than the 4 ohm u will get more power using the 4 ohm and have more headroom when the music peaks
All the ohms do is lower resistance which truly only affects once amp is added in the equation but only as far as how many watts the amp can put out but also only if underpowered
It IS louder (4ohm). Sucks in more juice out of the amp. My question, can I put a 4ohm speaker in a cabinet that had a 8OHM speaker? Do I need to rewrite the box for a 4ohm! Right.
In my experience, it's better to run less efficient higher ohm speakers and more power. 8 ohm speakers have more accurate bass and mids from what ive found building speakers.
The 8 is more clear. A 16-32 ohm produces exceptionally clear audio without watt draw. The 8 and 4 paired delivered a whole sound but the 4 on its own is hallow almost like it's in a tin can. But it's lower ohm draw means you need way more watts to push it but produces more bass. This is why all audio systems need powerful tweets to compleat with the lack of clarity.
Sir I have polk hts10 subwoofer 8ohms ,and tannoy elicps center 8ohms and elac debut 2.0 b 6.2 book shelf speaker now I am intermixing my denon avr x 1600h av receiver Does this cause any problem
8 ohms run cooler than 4 ohms , another words less heat will save your amps and speakers. 2 ohms takes more power which lead to bigger amp and more money for the same sound . that's something that manufacture want you to believe, that's why they are pushing 2 ohms amp and speakers. they cost more and look bigger. waste of money, you don't see high end speakers that are 2 ohms.
Amps deliver twice the output power when a speakers resistance is halved so no you dont need a more powerful amp. The difference is the lower impedance will be 3dB louder. 3db is slightly louder but not twice as loud. Its not a myth its a lack of understanding.
couldn't tell the difference, hey so I got a question that you might have an answer to. So I have a pair of 6.5-Inch 180 Watt 2-Way Coaxial Speaker but each speaker is 90 Watts RMS/ 180 Watts Peak Frequency Response 65-20 KHz, Impedance 4 Ohms. I'm looking for a cheap 2 channel amp that can make these speakers sound awesome. what kind of specs should i be looking for in a amp? how many watts should the amp have and ohms as well, remember I'm looking for a cheap amp that make my speakers shine! thanks
Probably you have ALC on while recording. Normally it should sound louder with 4 ohm but putting on both, we hear the same level which shows the ALC is on.
Hi I have a small doubt. please give your expertise,I am planning to build a diy soundbar with 2.0 amplifier board (stereo left n right channel), can I add 1 woofer to the amp,(thereby total 3 speaker for a two channel amp). the impedance of amp is min 8ohms..
Hey Mike I understand what you are saying the difference is not mocked but don't you think when you multiply it by four it would make a bigger difference for example if you have a 4-channel amplifier which gives a hundred and fifty by 4 into 4 ohms don't you think the same amplifier would give less power at 8 ohms
guys .an 8 ohm speaker is 3db more efficient than a 4 ohm..it this amp is 250w at 4 ohms it means at 8 ohms is 125 watts.even the 8 ohm driver receives half the powet it plays the same loudness with the 4 ohm.this means that with 8 ohms the amp will be much less stressed than with 4 and it will play cleaner. an additional benfir is the damping factor of the amplifier will be double at 8 iohms.of course the current demand from the cars electrical system will be half for the same loudness.if you add two 8 ohms drivers in paralel eveything will be as a 4 ohm one but it will be 6db louder which is a huge difference
Finally, someone getting rid of all the hypotheticals and actually testing it. Last guy was talking about a golf ball and air speed
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4 vs 8 Ohm isnt really a power thing. if you close your eyes you can hear the difference between them. its not volume, its tone and texture of the different ranges. the 8 ohm sounded "thicker" at the lower ranges, but muffled the mids and highs. where as the 4 ohm lost some of the meaty bass, but gained more crisp sound in the mids and highs. when I put together a system a couple decades ago, I used 8 ohm subs and used 4 ohm mids and tweeters, I would have taken the tweets to 2 ohm but they just werent around back then really. but I had an incredibly rich sounding stereo. heavy base that you could feel passing through you, and crystal shattering highs. now I wish I could get something other than 2 or 4 ohm speakers for my motorcycle :(
Its the best comment on this video, Ive heard that too yesterday doing car audio and switching between 8 and 4 ohm subwoofer, 8 ohm just crashed it, you could close your eye and just relax deeping through that smoothness of bass vibrations, that meat! Difference in night and dat!!!! Even by not an audiophile person next to me. Otherwise wiring 4ohm speaker the bass was easier controlled right and louder, but it was only loudness and not quality itself it was not comparable, maybe some mids and highs would be better at 4ohm but not for a bass, it needs to be hell thick and dynamic which only maybe top high end 4ohm speaker give you, comparable to casual 8ohm. Peace out! And have a good 8ohm subs in ur trunk!
Thanks this helped me how to design a sound setup for a pinball machine..understanding the output. Now are those driving by individual amps? If I remember on my home theater amp I can set the ohm ratings per channel though. I also bike too.. ride safe
It took me a while to finally find this comment. I have a pair of beautiful PHD AF 12" 4ohm each, that will be pushed by RF T20001BD. The amp should give them enough power at 8ohm load. What you think?
@@sebastianfonk1281 I havent dealt with Rockford Fosgate a whole lot. especially this high of wattage as most my experience with them is in the motorcycle applications. they are good but they always seemd to be a bit "meh" on note for note quality, but they have among the best for controls.
being as you are using it for base, it would fall more to type of music. Rock/metal should have a decent snappiness to it. overly muted "rap" style base will likely be snappier, but thats not the general goal of rap style music where it tends to be long low notes.
but would def suggest getting a good crossover to delete the ranges you dont want pushed through subs. even if you dont hear those notes anyways, if the signal contains those ranges it will reduce your clarity of the notes you want coming from them.
make sure the box is properly built whether ported or un-ported. I wouldn't go with off the shelf boxes unless the box is specifically built by the maker of the speaker. the boxes off the shelf will 99.9% of the time be the wrong size and give to much air or not enough and/or have the wrong port sizes.
you should be fine over all as long as you don't try to rush from the point you are at to a finished system.
Lol... 8ohms is thicker sound than the 4ohms... 😂😂😂
The less ohms the more power it draws from the amp mike it might not be noticeable at low volume but crnk that volume up and youll smell some smoke from the 4ohm speaker first.if you have really good amp and you want more speakers you can have 4 8ohm speakers per channel to a final load of 2 ohm per channel vs only 2 4ohms tht make the same 2ohms final load per chanel so you tell me if 8 speakers vs 4 speakers makes diference with 8 speakers if you have the room you.can have way more punchy middbass or nice and clear vocals
well said. running higher impedance speakers also allows amp relax and be more efficient less current draw and cleaner sound 2 ohm vs 4, 4 sounds cleaner amp runs cooler and efficiency goes up less taxing on the poor at best electrical system most have. once you go full retttard and spend thousands you care much less about this and just want the sound you like no concern given to the price or efficiency. small sacrifice of db allows for cheaper build too for beginners who cant afford big 4 and 4/0 and mechman alts and... it never ends but a budget multi amp system can be built on stock electrical if done right and using these options to your advantage. at the sacrifice of a little spl but you can always buy more later. car audio does not have to be for the wealthy alone just read more books and stop believing everything you read in forums 90% is hogwash you dont need 155db @ 30hz to have fun with this hobby but it does help ;P
and i band pass my mids they get mids only if you have too large of a range per cone it gets muddy and builds more destructive heat ( your number 1 enemy is clipping number 2 is heat ) and i can grossly over power my mids by keeping them this way you want highs get some tweets never full range mids with real power once the magic smoke comes out its a paper weight
Hi I have a small doubt. please give your expertise,I am planning to build a diy soundbar with 2.0 amplifier board (stereo left n right channel), can I add 1 woofer to the amp,(thereby total 3 speaker for a two channel amp). the impedance of amp is min 8ohms..
@@fusion_fever1592 im not expert but if the amp is capable of bridge mode i think you might be able to ger away with it but keep in mind you must add something that cuts the mids and hight only to the subwoofer.. i sugest get a 3 or 4 channel amp and play it safe if you dont know what youre doing or do some more reserch before damaging your equipment
@@michaelsegarra2709 thanks for the reply, the way my mind is thinking after watching lots of UA-cam video on impedance is as following,the amp is a 2 channel stereo with 8ohm impedance,so I will a 8ohm speaker for the left channel,and now I will add my 4ohm woofer and a 4ohm speaker to right channel in series, thereby giving a total impedance of 8ohm on right channel (4+4 =8),thus meeting the requirements of the stereo amp at 8ohms..
My friend the difference is if you take 2 and 8 ohm speakers are that you can bridge them together that will make 4 ohms impedance so if you have a 4-ohm amp you can hook two speakers to one channel and stay at 4 ohms, or if the amplifier is a 2 ohm amplifier you can hook 4 speakers on each channel.
Neah look buttons! home work for you
Exactly
3:56 he became tha speaker
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Lol
4 vs 8 omh does not make the speaker play any different. The only thing that ohms effect is what the amp sees as resistance.
@@luisaucedo lmfaoooooo
Finally! Most channels will run through equations, show SPL curves, spout out technical jargon. You just simply played the music. Thank you.
@@theinvisibleman2070 You don't sciece art. But thanks for the condescension.
It does not matter about ohms. Ohms only determines how much resistance the speaker is. 4 ohm is easier to move than 8 ohms
The only difference i hear is frequency response is way better on the 8ohm…the 4 ohm is kind of beaming at certain frequencies. As an audiophile i choose the 8ohm for clarity reasons but for power and noise value i say choose the 4ohm. Its cheaper to make given watts @ 4 ohm than @ 8ohm to make 200w rms @ 8ohm is probably 4x the price. Amp to speaker matching is very important as well.
Beaming is a function of speaker size and shape, not impedance.
THIS!! ^ Thank you. I was looking for the "mash forehead on keyboard" button... Some of the ideas people get...
Thank you for doing these tests I bought some 4 ohm mids and was wondering if I made the best decision I'm glad there is no big audible difference.
Glad you don't hear much of a difference so you don't regret it. For me, there is a huge difference. The 8 ohm is much more clear. I am also rocking a nice sound system, so that probably makes it so I can hear more.
@@kalypso4133no difference to me my 4ohm ds18 speakers is pretty clear here the 8ohm version and there’s literally no difference
@@luisbrain7011 gotta stop listening on full blast my guy. ear damage is a serious thing.
8 ohm means there's a rest between each bass kick(making it a clean kick like "Boom" - "Boom" - Boom"), the lower the ohm the more the bass overlaps without a break in between each hit(Booommmbooommmbooooommmmmmm no break between each bass Kick more of a continuous bass sound overlapping one another, this is usually at 1 ohm or half ah ohm, this is also why it causes the amps to run so much power/so hot that you could smell the speaker coils because there's no rest just continuous overlapping bass) hope this helps ..........
One more thing a amp running 5000 watts rms at 8 ohm is a hell of a powerful amp, compared to a 5000 watt RMS amp running at 1 ohm or half ah ohm, the 8 ohm is going to be way louder, more like concert speakers with ever kick of the Bass,
The one ohm or half ah ohm will only win if the bass is a set continuous synthesizer bass in the music you're listen to, if not you won't even notice!!!
One thing to remember though running a 5000w RMS at 8 ohm is way more expensive than running it at 1 ohm or below and the 8ohm will sound 1000% better and louder ).........
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Going from an 8 ohm to a 4 ohm doubles the load on the amp, when you double the power to a speaker, you get a 3db increase. Doubling an amp power to a given speaker doesn't double the sound output, you get around a 3db increase. Humans can detect a 3db increase but it's not twice as loud, you would need a 10db increase for it to be perceived as twice as loud.
@@Hayawasa True, a 3db in amplifier power which efectly is a doubling of power at any impedance of the speaker curve. A speaker impedance is rated at its lowest point on it's impedance curve but is sometimes much higher within the speaker bandwidth .
@@Hayawasa, 1 NYC DJ is spot on. The "3dB measurement" here is derived from the formula. The formula for power is, dB = 10 * Log (Pout/Pin), and for voltage is, dB = 20 * Log (Vout/Vin). In this case, 4Ω will draw twice the power than that of the 8Ω. So, we use the power equation and find the Log of 2, which is 0.301, then we multiply it by 10 for 3.01dB. This is where the 3dB measurement is coming from. Each doubling of power equates to a gain of 3dB according to the equation. The difference between a 4Ω and 8Ω speaker has never been a comparison between twice or half the perceived volume. The difference is merely a doubling or halving in power. An 8Ω load will always be -3dB when compared to a 4Ω counterpart with the same sensitivity at 1W and with the same voltage applied. The reason for this is because of the power difference. 2.83Vrms = 1W into 8Ω but 2W into 4Ω. An 8Ω load with a sensitivity of 90dB will be 90dB at 2.83Vrms and the 4Ω load with the same sensitivity at 1W will now be 93dB because the voltage is the same and 2.83Vrms = 2W into 4Ω. That same 8Ω speaker is now 93dB at 2W, but the 4Ω speaker is now at 4W and 96dB. 96bB with 4W into 8Ω and 99dB with 8W into 4Ω....etc. (Adding 3dB with each doubling of power). An increase of 6dB is a doubling of voltage, which also represents a quadrupling of power. An increase of 10dB is required in order to yield a doubling of the perceived volume (SPL). An increase in 10dB just so happens to equal 10 times the power when plugged into the formula appearing as though it's linear, but the decibel isn't linear, it's exponential. It takes 10W to be twice as loud as 1W, 100W to be twice as loud as 10W, 1000W to be twice as loud as 100W, 10kW compared to 1kW...etc. It requires 10 times the power regardless of impedance to effectively double the loudness. A change of 3dB can never be close to or over 4 times as loud regardless of frequency. It won't even be close to twice as loud. That completely violates physics. Four times as loud requires an increase of 20dB, not 3dB. The most important rule to remember in electronics is that we can't violate physics, it can only violate us.
@@Hayawasa I was covering the theory of it. In reality, there is no such thing as perfection, nor is electronics an exact science to begin with. The math is our guideline, but it's certainly not ever dead nuts on...that's for sure. The figures will realistically be even less due to the limiting mechanical factors of the speaker itself. But those things go far beyond the scope of what I was trying to illustrate. I agree. There's a lot of variables at play. There is no dead nuts answer. It's about trial and error when it comes down to it.
@@Hayawasa The science of sound and the science of electronics are based on the same thing....physics. Smh...quit stroking it already. If you want to go that route and get all butthurt, then I'll go on to say that I don't think some of your comments are false. I know some of them are. You're talking nonsense and only making sense to yourself. I'm just as inclined to learn something new as the next guy, but learning bs pseudo-science isn't my bag of chips. I know better than that, my friend. I have a degree in electronics. You're not fooling me by any stretch of the imagination. I was just trying to help, not get into a pissing match. That would be you. I will leave you to wallow in your delusions.
But bad hair cut man does not know this !!!!!
What's the song @ 3:42?
Not even Shazam can help me. It keeps sending me to random junk.
Good question, I would like to know the title/artist too (And double up on that, Shazam sends me to different sheit in perpetuality - even to the outhouse!) So could you please please kindly share the secret title/artist with us? :)
I got PRV speakers AND I got those Lego parts he's using to hold them too. :)
A couple of factors. First off, it will depend on speaker efficiency, if you have a 4ohm driver with a lower efficiency rating than a 8 ohm drive that has a higher rating, then the amount of output will be close. Also the amplifier has a part in it. Not all amps produce double the power when you cut the impedance in half. Some will, some won’t. So it depends on the amp’s out put on impedance and the efficiency of the speaker’s Thiel small parameters. That’s why some speakers sound louder than others with the same amplifier. Efficiency = power output
"NOT ALL AMPS DOUBLE THE POWER WHEN YOU CUT IMPEDENCE IN HALF"
i would recomend you to take a look again at ohms law, the amplifier doesn't "doubles" the power when you go from 8 ohms to 4. The power is already there and it will not be doubled, it's simple ohms law and it states that "the power decreases if the resistance increases". So if you go from 4 to 8 you are increasing IMPEDENCE hence power decreases. And every amp in the world does this and not just few amps like you mentioned. Peace.
Very good answers - you would choose your speaker based on the amplifier's output rating i.e. 4 ohm / 300 W RMS 2 ohm / 600 W RMS and so on.
@@burhanuddin127 hello i have a question and hope i get an answer and is that i have a taramp 800x4 2ohms and i have installed already 4 prv neodymium that are 4 ohms with 2 PRV super tweeters that are 8ohms and i’m planning changing them to another prv model and i wanted to know which speaker is better for me an 8ohms or a 4ohms?
How do I contact you
4ohms @350-450 rms
2ohms @300-350 rms
From 700 watts rms amp designed for 2ohm.
They're both 250 watt drivers/speakers. They should produce same quality sound in design. It's totally depend on how much the powered amp can produce in 8 ohm or 4 ohm channels, and the wiring here too. Please check the amplifier power outputs in manual or specs! It's missed leading fact or myth busted!
Higher ohms means less power draw, so in a power limited set up like a 70 amp alternator would I be better to use 8 ohm speakers and pump more power to the subwoofer? I don't like my music in my car very loud so volume wont be an issue.
I like 8ohm more for voice nd loudness’s i noticed in my experience and they are less likely to burn . Had a lot of 4ohms burn
Yes I run 8 ohm and my buddy has 4 ohm mine are way louder then his and he even has a bigger amp on them then I do
Your speakers were 8 ohm and louder than your friends 4ohm speaker. .I always thought 8 ohm was more clear and .the 4 ohm wil distort first at higher volume @@michaeltursack5470
The question that should be asked is why are the majority of car speakers 4 ohm and not 6 ohm or 8 ohm which you find in most home hi fi speakers?
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Ok all amps are rated to do power at certain ohm loads eg the amp will says 500 at 4 ohm and 1000 at 1 ohm the speakers will tell the amp what power to put out so yes the 4 ohm will play louder than the 8 ohm on the same amp anyway great video watching from trinidad and just a little advice doubling the power on a speaker doesnt mean it will play twice as loud it doesn't work that way
Exactly what Im trying to explain whole my life )
In my experience the more ohms the cleaner,. The less ohms the louder,. 4 will be louder than 8 but the 8 will sound more crisp
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I like this vid. So many people misunderstand ohm law etc. and how a 2 omh speaker is not automatically louder than a 4 ohm or even an 8ohm of the same speaker. 8 ohm is actually easier on the components and amps, etc., and 8 ohm also is easier to control the flow of power than either 4 ohm or 2 ohm. The lower the ohm rating of a speaker, etc., inherent is a reduction in clarity, etc.--quality--and the power is also harder to control and the ohm rating goes down.
majority of car stereo amps (stock stuff) do not boost the voltage in the amp section (good amps do), so they only have 12V, 4Ω easily wins to drive more power in this situation. This is why there is 4Ω speakers. And as Resonant Engineering said, lower ohms can be higher power rating, its not just ohms law, its also the power law.
@Jim Catanzaro Ya. I was building systems back in the '90s. Maybe I'm getting old, but every system I hear runnint A/B amps always sound better than even the best class D; although, plenty of people will disagree. And that's fine. they can disagree all they want until they hear a sub running off a/b and same for door speakers.
a/b amps push-pull by their design. It's more dynamic, they are faster, which means speakers run faster, and subwoofer sounds amazing on an a/b.
@@RobHTech so if my dead unit is a class d is it worth using an a/b amplifier?
@@RobHTech a/b is the best, yes, some people can't hear the difference, I definitley can, I've been doing systems since 1980
@@RobHTechi agree with you..an a/b has sound quality ...
I heard the 4ohm just a tad bit louder i would rock that 4ohm
Ohm is the electrical resistant in a circuit. So it really won't change sound. It will just take more amps / power to get the same volume on a higher ohm speakers. But you can also overheat and damage the speakers, stereo, or amplifier if you run the channels / circuit on the ohm range it wasn't designed for. If you run /wire two speakers, in parallel, it will drop the ohms / resistants by half. Ex: The positive and negative from the speakers are both connected together to the same corresponding terminals on the channel.
Then, if you run / wire the speakers in a series, it will increase the ohms / resistance of them. Ex: Positive from one speaker goes to the negative of the other.
Pro and home speakers tend to be 8 ohms. Car speakers are almost always 4 ohms. Why? Because an amplifier is more efficient when driving a 4 ohm load. You get more power at 4 ohms. Car amps and head units would be twice their size if they were 8 ohms. That 14 watt per channel car head unit would drop down to 7 watts if driving an 8 ohm speaker.
In your test you didn't really push your amp to high levels. So at low levels both speakers will perform well.
Midrange speakers tend to be very efficient so most of the time there is no need to push them hard with lots of power.
Where there will be a difference is in driving speakers that would benefit from the extra power which would be woofers and subwoofers.
Generally you are going to see a +3db difference in spl between these two speakers. Often this small amount is hard to hear. +6db is very noticeable.
i built my own 3 way house speakers using 2 ,4 ohm 10 inch sub woofers for car audio and 2 6.5 midbass 8 ohm car speakers and 8 ohm tweeters! i have a total of 400 watts i am pushing with my house stereo and they sound great , i also built my own crossovers i love my music loud and havnt had my stereo over half way yet on volume and it shakes my whole apartment building! lol
So whats better 4ohm or 8 ohm? idc about anything else. would just like to know whats better for clear sound.
8ohm better for clear sound
Thanks for the great videos. I look forward to the competitions. The difference in 4 ohm and 8 ohm speakers is the ohm load they put on the amplifier. The 4 ohm speaker will make the amplifier run in 4 ohm mode which is usually twice the power as it puts out in 8 ohm. So if you have two speakers a (4 ohm and 8 ohm)on the same amp but different channels, the 4 ohm channel is putting out double the watts as the 8 ohm channel. That means the 4 ohm speaker will be louder than the 8 ohm speaker but only by a few decibels. Also, when the amplifiers ohms are dropped from 8 to 4 to 2 or even 1 ohm the distortion levels usually increase in output. So using a 4 ohm speaker would double the power and increase distortion when comparing it to the 8 ohm. When comparing speakers the ohms need to be the same. Thanks again you've helped me choose which mids I'm going to purchase!
So are you saying @jadm the 8ohm would be better when you consider vocals?
@@dgfresh92 go for 6 ohm
Thank you for your advice but I got a question I can't get answered. Surely it is simple. A 8ohm speaker rated for 150watts rms will always need 150watts rms, even when wired down to 4ohm right? Or when wiring it down to 4ohm should I only give it 75watts now?
@@RandoManFPV Yes. That is what is rated doesn't matter wether you are in 8 or 4 ohm. Ohms are for figuring out which way you will run the speakers for the AMP. The AMP will tell you what OHM to run the speakers in for best or max output.
@@jadm4850 thanks man!I thought I had all this figured out haha. Heck I already knew the answer to my own question but the more I thought about it the more unsure I felt 😅
4ohm has a lil bit of a tweet sound over the 8ohm
tweet sound oh dear god.........
its actually the opposite
Ive never herd this myth. Ohm is resistance only. It has to do more with the amps performance than the speakers.
same loudnes but 4 ohms is slightly liter than 8 ohms in producing sound quality.. and also maybe in the range level of volume will give more push on 8 ohms. same loudness but not same punch on the sound.
Maybe you could do 2 x 8 ohms wired to 4 ohms on one channel VS 1 x 4 ohm speaker. Or 2 x 4 ohm speakers wired to 8 ohms VS 1 x 8 ohm speaker.
Can I assume on a 5 channel cerwin Vega amp that I can run 2 x 10 inch subs at 2 ohms and mids at 4 ohms on the stereo channels? Or should I keep the sub channel at 4 ohms also?
Most power amp manufactures list the power output at 4 Ohm, and 8 Ohms. Sound pressure level i.e. Decibels is measured on a logarithmic scale, so doubling the power will not double the sound pressure level. That's why the volume control on a receiver or amp is an audio tapper (Logarithmic) and not a linear tapper, Potentiometer or rheostat. The speaker's voice coil sensitivity rating also affects the sound pressure level output. The higher the sensitivity rating, the louder your speaker is. An average speaker comes with a sensitivity of around 87 dB to 88 dB. A speaker with a sensitivity rating over 90 dB is considered excellent.
the biggest point to 8ohm in my experience is if you have a crappy stock system, what a bit more boom with a better sub cone, but don't want to tear everything out to drive a 4ohm sub, and get the maximum out of the stock amp. They are great for the quasi audiophile who has car speakers or computer speakers with crap subs, but that's the only big point imho.
THANKS. I JUST WANTED TO REPLACE THE 4ohm WITH 8ohm IN MY $65 SUBWOOFER BOX I BOUGHT FROM EBAY. I USE IT FOR FRIDAY NIGHT COOKOUTS & ALSO IN MY BASKETBIKE WHILE CRUISING AROUND. I HAVE IT HOOKED UP TO A 2.1 CHANNEL MINI AMP. SO, SHOULD SOUND LOUDER, IS WHAT YOU'RE SAYING?
Double sound energy is 3db, the difference between some 4 and 8ohm speaker drivers. You starts hearing double the loudness at 9db. So yes, you are correct it is difficult to hear 3db difference in volume. When you played both drivers at the same time we could hardly hear the change in volume because double the energy is 3db. However it is measurable and 3db difference is significant.
4 or 8 Ohm does not effect the way the speaker sounds. The only thing that ohm effects is the amp.
Impedance matched amp to load will not have any difference. The problem is when people expect an amplifier rated for 4 ohm to drive an 8 ohm load. Its like trying to power a 220v light bulb using 120v. Same with a 4 ohm amp driving an 8 ohm speaker. You will be supplying the 8 ohm speaker with about half the voltage it requires for an expected power ouput of the 4 ohm amplifier.
Ok I don't get what you mean about same power same channel. So an amp that does 125w at 4 ohm and 65w at 8 ohm will not the 8ohm sound drastically under powered while the 4ohm is full and punchy? Or will the still sound the same? Just curious
Amp output changed when ohm rating changes.
Nice video watching from Trinidad 🇹🇹
Trinidad here too man
trini here too bro🤙
St Vincent here
@@delanopayne9632 we always here🇻🇨🇻🇨
Trinidad here too
The Dj's instrumentals and music is the greatest I've ever heard in my life, that guy really knows his stuff.
Old video but what sounds better . 2x 16 ohm in parallel for 8 ohms total or 2x 4ohm wired in series for 8 ohm?
An amplifier is a VOLTAGE source. It is a FACT that if you put the same voltage into a speaker half the impedance you will have +3dB in volume. This test assumes that the amp will put half the power into 8-ohms vs. 4-ohms which is probably not the case.
Indeed 3db headroom. I believe the 4ohm and 2ohm has better bass response than an 8ohm also the resistance of the coil will obviously have an effect on the tonal qualities
This test must also be done just under peaking to determine that 3db. If the amp is under powdered it would go into distortion rather than headroom
I love the set up bro. I have 2 12'midbass 4ohm and 2 12'midhigh 8ohm
2 10' vocals 4 ohm 2 8' midbass 4ohm 2 8' midhigh 6 tweeters 3 horns
I always enjoy watching your videos. In the beginning of the video you said that one is 4 ohms and the other is 8 ohms. You also stated that they are on the same channel and if that's the case you will have a 12 ohms load on that Channel. If you have a 4 channel amplifier connect each speaker to a separate channel like 1,2 channel or 3,4 channel because those channels will have the same tuning. The amplifier will put out it separate power due to the load impedance of each speaker. Thar way the test will be more fair. I am not expecting double the power, double loudness from the 4 ohms speaker at all. And for the people who are commenting about 8 ohms lasting longer than 4 ohms. The truth is it really doesn't matter. If you match your amplifier properly with your speaker's impedance and rms wattage output then you shouldn't have any problems of amplifier overheating or speakers burning.
Yes im running on 1 channels and buttons is separating them its not parallel only if I press both itll be parallel
Still not a fair comparison you need to make sure the euch speaker is getting the same amount watts
I wouldn't say one is louder just the 8 ohm projects the sound with more depth and is a little clearer and frequencies are more pronounced .
Exactly what song is it at 3:40?
What should I get for highs 4 ohms or 8 ohms?
Does anyone know the name of the song @3:45 ‽
8ohm is for Sound Quality
2Ohm for POWA so it can get more power out of amp sacrificing sound quality.
You lose power at the amp not the speaker. When the amp sees the resistance it changes the power.
I can hear a difference in frequency response
so what your saying the more thinner the paper on the speaker right the louder it's gonna be??
It’s just like the subwoofers, the ohms are made depending on what application, generally, to match a amp for example: a 3000w 2 ohms monoblock , for match that ohm , you need two speakers at 4 ohms (4+4=2ohms load) , with a 8 ohm speaker, you will need four speakers at 8 ohms to match the 2 ohm load for the amplifier (8+8+8+8=2 ohms load). Obviously in parallel.
How so? I have 2 4 ohm dvc's going to a 2ohm stable monoblock. The speakers and are at 4ohm stable. Sounds pretty good, still tuning the amp.
They sound similar because you are using the same power...the difference comes with the power ratings as you can send more wattage at 4 ohms...
It could be the type of music left was definitely getting more power the voice coil was really moving compared to the right but it was still just barely louder. On the second track the right side was player louder made no sense. I was listening through 6 four inch mids with tweets house system and I could barely tell the difference.
What's the best way to power 4 8ohm speakers? 2) 6.5 and 2) 6×9
The main difference is the amps the speaker draw from the amplifier. If you connect two 4ohm speakers the ohms drop down to 2 ohms compare to 4 ohms if you connect two 8 ohms speakers.
A DB meter could've shown the loudness of each driver
mike i love your videos.please let me know best pair of speaker for building diy studio monitors? woofer cone 5-8 inch, tweeter 1 inch silk dome. while it is going to be biamped
Hey bro if I do monitor speakers for my salf i go with this amzn.to/3guesl5
Bro, Can i use 3-ohm jbl gto 629 coaxial speaker on 4-ohm stock head unit? their any damage happen to the head unit?
I also would like to know, have the same situation over here 👍 thx
Are both speakers running on the same amp?
Yes
If we have use a 100w class A bjt transistor amp: it outputs current. And the speakers were the same except 4ohm 8ohm then the amp could put out 8.33 amps . Then 4ohms needs 5 amps for a 100w speaker, and 8ohms needs 3.5 amps for a 100w speaker. The higher the amps the harder the amp has to work gets hotter. Get a bigger amp and run 4 ohms or less they do sound better. Random: car amps have DC step up. Might look like 78VDC inside of car amp with 2 ohm output for 3000w.
I like these PRV's sound. I can definitely hear a difference in timbre between each. Which is a more accurate representation? The DJ will have to say.
I bought a pair of CDT 6X9S. Specifically because of 2 ohm impedance. They are the loudest speaker I've ever heard. Apparently a 2 ohm tweeter does not exist.
First of all the 8ohm and 4ohm speakers are literally EXACTLY THE SAME... the difference comes from the amplifier. An amplifier is going to put out more power at 4ohm than at 8ohm. It's half the resistance if you were to put the 8ohm speaker on an amp that does 200watts at 8ohm and the 4ohm speaker on an amp that does 200watts at 4ohm there will ABSOLUTELY ZERO DIFFERENCE BETWEEN THE 2 SPEAKERS... 8ohm speakers are there so that you can run 4 of them on 1 channel of an amp in parallel to get a 2ohm load. Most full range amps do not handle a 1ohm load per channel...
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What ohm should I use when replacing factory speakers? I do have a aftermarket radio but no amp. Just radio and speakers
You didn't notice any different because your amp could support both, if your amp was only supporting till 8 ohm then you could feel the half power different on the 4 ohm speaker
The difference and problem starts when your amp is not powerful enough to support 4 ohm but as you said your amp is way more powerful the all these speakers
I have a Rockford 500 mono. Hook up. To a dual voice coil 10 bazooka I want to ad a 12 inch single voice coil
How do I wire up ,? Thanks
There’s a fundamental misunderstanding here.
Double the ohms, doesn’t mean it will play half as loud at the same power. It means the electricity running through it, is doing so at twice the resistance… But it’s still running through it.
Now, over time, if fed the same power, an 8-own speaker coil will heat up more. The wires to it will heat up more… Until eventually, the amperage will exceed that of the fuse and blow the fuse. Whereas, the speaker with less ohms, won’t be as hot, won’t draw as large an amperage, or blow the fuse (all things being equal but ohms)
Lastly, as amperage increases, as the wires get hot, then you’ll start getting clipped on the lows and a ton of distortion. Why? Because though the wattage going to the VC is the same, the coil is literally trying to stop the electricity from getting to the ground… The wattage power is at war with the magnet.
Im looking to build a system for my truck .im looking to run 8 inch mids n a separate 3 inch tweeter in the doors ..what would u recommend for a 8 inch ..ive got the kicker 6.5. In the quarters n a 10 inch kicker sub in the rear ..would love your input n what amp would u run
This test probably would have been more effective using a jl or Rockford amp with the regulated intelligent power supply where it plays same power out put no matter what ohm is used I don’t think Orion made a amp with that technology I could be wrong but if that’s not what’s going on here then at 8 ohms the amp would put out less power but more efficient then the 4 ohm thus the 4 ohm being louder
intelligent power supply is just the opposite, so when your boxes impedance drops at the ports tuned frequency the "intelligent power supply" is going to see the lower ohms and cut back power? That's a stupid power supply! If you know what an impedance curve is you would realize how dumb those amps are. It's not intelligent, it's there way of making a cheap amp that won't overheat at low ohms and then trying to give it a fancy name to trick a buyer into thinking they are getting something new/cool
Heres the thing , your impedance changes with music so its almost never anywhere near 4 or 8 ohms , especially with midrange and higher frequency. If you notice they test alot of amps at 100hz and below to get the minimum ohm load and make better numbers for the amps power rating. If you dont understand what i mean put an ohm meter on the speakers terminals while playing a song. The ohms jump all over the place .
Good question, I would like to know the title/artist too (And double up on that, Shazam sends me to different sheit in perpetuality - even to the outhouse!) So could you please please kindly share the secret title/artist with us? :)
I got two b&c 10 they are supposed to be 8ohms but my multimeter read 4.8 on both speakers it’s that normal ?
My think is my soundigital 2000.4 4ohms
Give me 1000 at 4 ohms
But when I connect my two speakers it go to 2.2 ohms it’s that normal ? Or how you guys recommend me to connect them ?
Thanks
Do they make a good full range coax 6.5? I'm looking to replace my bike speakers.
Does it not mater how man ohms your allowing to pass to the speaker like are you only using a 4 ohm amp with both speakers vice versa
U will hear a bigger diffence at full tilt and the type of amp design some amps will double power when ohms drop some will not but 8 ohm will distort a little earlier than the 4 ohm u will get more power using the 4 ohm and have more headroom when the music peaks
I Have 2 8inch Prv 8mb450 Nd A Jensen 1200w mono Amp .will the 8s Be Fine if ran on This amp
Do the same test and use a smd to verify the rms coming out to each speaker
8ohms is good for running 2 bridged at 4 ohms on your amp to get the most out of the amp. Since they don't make a 2 ohm version.
Yo Mike what song were you using to test?
What About db that makes a difference too or I just imagine it
Is cleaner sound at high levels the 8ohms
All the ohms do is lower resistance which truly only affects once amp is added in the equation but only as far as how many watts the amp can put out but also only if underpowered
It IS louder (4ohm).
Sucks in more juice out of the amp.
My question, can I put a 4ohm speaker in a cabinet that had a 8OHM speaker? Do I need to rewrite the box for a 4ohm! Right.
In my experience, it's better to run less efficient higher ohm speakers and more power. 8 ohm speakers have more accurate bass and mids from what ive found building speakers.
Soooooo, what’s gonna be louder in my truck with an amp??????
Is possible to connect 8ohms 30watt speaker and 8ohms and 10 watt speaker in series
Hi yes you can do that bothe speaker r small watts so u not gonna kill your amp
@@LIFEINSPEED thank you bro
I think 4 sounds better for you which one sounds better?
The 8 is more clear. A 16-32 ohm produces exceptionally clear audio without watt draw. The 8 and 4 paired delivered a whole sound but the 4 on its own is hallow almost like it's in a tin can. But it's lower ohm draw means you need way more watts to push it but produces more bass. This is why all audio systems need powerful tweets to compleat with the lack of clarity.
Question whats the better speaker
Sir I have polk hts10 subwoofer 8ohms ,and tannoy elicps center 8ohms and elac debut 2.0 b 6.2 book shelf speaker now I am intermixing my denon avr x 1600h av receiver Does this cause any problem
What head unit are you using? I though that mattered 😄 Supposedly for home use 8ohm is better and vehicles 4ohm....
8 ohms run cooler than 4 ohms , another words less heat will save your amps and speakers. 2 ohms takes more power which lead to bigger amp and more money for the same sound . that's something that manufacture want you to believe, that's why they are pushing 2 ohms amp and speakers. they cost more and look bigger. waste of money, you don't see high end speakers that are 2 ohms.
Amps deliver twice the output power when a speakers resistance is halved so no you dont need a more powerful amp. The difference is the lower impedance will be 3dB louder. 3db is slightly louder but not twice as loud. Its not a myth its a lack of understanding.
good shit!! ...3 dislikes is just your neighbors
couldn't tell the difference, hey so I got a question that you might have an answer to. So I have a pair of 6.5-Inch 180 Watt 2-Way Coaxial Speaker but each speaker is 90 Watts RMS/ 180 Watts Peak Frequency Response 65-20 KHz, Impedance 4 Ohms. I'm looking for a cheap 2 channel amp that can make these speakers sound awesome. what kind of specs should i be looking for in a amp? how many watts should the amp have and ohms as well, remember I'm looking for a cheap amp that make my speakers shine! thanks
Hey man get timpano or rockville amps they around 90$ but Ull be happy with them
@@LIFEINSPEED i was looking for something in the $50 or even less lol
Probably you have ALC on while recording. Normally it should sound louder with 4 ohm but putting on both, we hear the same level which shows the ALC is on.
The setup as you have it, i like the 4 ohm sound better then the 8 ohm.
Hello, awesome video I’m gonna install 2 12” ev black label in my car 300 watts what’s a good amp to push them ? TIA
You can buy my 1000 watt 2 channel amp...60$..are you near georgia?
Hi I have a small doubt. please give your expertise,I am planning to build a diy soundbar with 2.0 amplifier board (stereo left n right channel), can I add 1 woofer to the amp,(thereby total 3 speaker for a two channel amp). the impedance of amp is min 8ohms..
Get 2.1 board instead )
Do 2ohm vs 8ohm ... 2 4ohm in parallel vs Series.. for sound quality
what's your take on prv vs Hertz both 6.5
Prv all day
Which is best 4ohm or 8ohm
Hey Mike I understand what you are saying the difference is not mocked but don't you think when you multiply it by four it would make a bigger difference for example if you have a 4-channel amplifier which gives a hundred and fifty by 4 into 4 ohms don't you think the same amplifier would give less power at 8 ohms
Yes it will be difference bit not huge like everyone panicking