I spend a great deal of time updating and answering questions from the webpage. If you have a specific question, please read the relevant article on the webpage and post your question there. Rarely do I get to answer questions posted here in UA-cam, although others often help out. geoffthegreygeek.com/category/home-av/connecting-speakers/
Geoff. Here is what I sent you in an email like you asked. Please let me. Know if you received it. Maybe someone else can chime in if they know. You would think as long as I have been playing I would have ran I to this, but this is a first. here it is. Hey Geoff. I have a Bugera Vintage V22 Infinium. It is a 22 watt combo amp. On the back is a jack for connecting an extension cab. Where the jacks are for the extension speaker, and the jack, and plug for the speaker in the amp it states "amplifier output 22watts 4 ohms minimum speaker impedance. Jacks Paralleled". (The speaker in the amp is 8 ohms) Next to the jacks is a switch that has a setting for 4, 8, and 16 ohms. The extension cab is an Egnater 1x12 and is 16 ohms. If I plug this in to the extension jack, what would I set the impedance switch to? I do not want to damage my amp. You are the first person I have come across online who seems to know what they are talking about. I hope you can help me with this dilemma, but I'm sure there are plenty of people on here that have an answer, but I would like to hear all opinions including the Grey haired geek. Thank you in advance,
Assuming, the connection was done correct. Does multiple speakers connected to one channel affect amps? In other words, do you get the same output from the amp per speakers as you would if you connect one speaker to one channel?
Hi sir, thanks very much for the vdo, this one vdo gave me a clear picture of impedance,Hi I have a small doubt. please give your expertise, what will be the formula for connecting two speaker's of different impedance(say 1 speaker with 8ohms and other with 4ohm) in parallel... i know the calculation for series (10+4=14 ohms),I am planning to build a diy soundbar with 2.0 amplifier board (stereo left n right channel), and I want to add 1 woofer to the amp,(thereby total 3 speaker for a two channel amp).
If your speakers are rated at 8 ohms, that means impedance will vary from 16ohm and during heavy, complex bass and orchestral music, it will sure drop down to 3.2 ohms. While 4 ohm speakers will drop down to 1, 2 or zero ohms and drain the current from your amplifier severe. The more high current you provide, the more headroom you have, also with high current amplifier you prevent amp and speakers from potential damage - clipping! After trying 4, 6 and 8 ohm speakers, I realized minimum power amp is 100watts per channel into 8 ohms and close to 200watt into 4 ohm, to drive most speakers. As for 4 ohm speakers or connecting 2 pairs of speakers, they require at least 150watt/ch high current amplifier to drive them well. For a year I drove Dynaudio 4 ohm floorstander with 75w/ch high current amp and that power wasn't enough to take control of the bass and soundstage (stereo mode). It was a torture like driving heavy Land Rover with a 75 horse power engine. While minimum requirements for such a beast is 120hp. Hope this helps someone :)
Fair Comment Junn. I find most people don't want to know the technical details, just what to do about impedance, hence the lack of a technical description. That is why I provided links in the video to my various articles where there is a better explanation. perhaps start with geoffthegreygeek.com/understanding-speaker-impedance/.
Impedance is defined as TOTAL opposition to current flow in an ac circuit. This total opposition consists not only of dc resistance, but inductive reactance(measured in ohms), and capacitive reactance(measured in ohms).
Basically, you never want your Ohm rating to be lower than what your amp lists, because less resistance means there is more current going through the amp, and the amp can literally be fried. Too high of an impedance, and your volume will be too low because there is too much resistance. This video is intended to make one understand what impedance you should be looking for when connecting speakers to an amp, but it doesn't explain the concept of impedance itself.
An impedance assigned to loudspeakers is essentially a "nominal" impedance. Impedance varies with frequency so there is an "impedance curve" for every loudspeaker or speaker system. For instance my AR-3a speakers have a nominal impedance of 4 ohms, however this speaker's impedance varies from a low of 2.5 ohms at 900 Hz to 22 ohms at about 45 Hz with various settings of the speaker's mid-range and tweeter controls. The overall impedance at most frequencies is close to 4 ohms. This is something you should know, but in general this video gives excellent advice on how to hook up speakers, but there will be some speakers that deviate from this simple solution.
This is hands down the best video for information on impedance. I'm no expert, but thanks to this I was able to wire my subs down to a safe 2 Ohm load.
i almost choke myself with your coment while i was drinking some beer and reading unsuspiciously got that...You really know about jokes and tell us also which movie is .thnks
Good article for the non technical people. However, there are several generalizations that are simply not correct. The amp indication about impedance is a convention, what really matters is the limits of the amplifier of delivering voltage and current. I certainly can connect a 4ohm to a 8ohm transistor amplifier. It won't explode unless there is no current limitation and I put volume to insane levels. If I connect a 16Ohm speaker, the limit would be the voltage the amp can deliver, but for hifi there are no 16Ohm speakers that I am aware of. Please read the rating of any amp. It will state power at 8 and also at 4 ohms, the latter being usually lower. BTW, 1 watt with regular sensivity speakers is very loud for home use. I monitor the power in my amp and I read 50mW-0.2W with my 89dB speakers in my studio. In my living room if I reach 2W I will have complaints.
this video was just fine. maybe the title is what was misrepresenting what the video would be explaining but what the video did explain it did with great detail. honestly the level of detail and comprehension used to explain impedance in this video is that of a 1st grade math teacher. i mean cmon how many different ways did they explain how to calculate impedance using simple math.
Hmmm, it was so clear to me ... and I'm certainly not a sound engineer (far from it)! IMO, this video explains in simple terms impedance without getting too technical. The term itself, 'impedance' is by definition easy to understand: To IMPEDE or in this context of sound and speakers, 'to RESIST / RESISTANCE'. It should be expected, anticipated, that there will be some v-e-r-y BASIC math here and in fact, there is even a helpful automatic calculator shown as well as color coded wires. Can't get any easier than that.
4 ohm speakers draw more current, 8 ohms speakers draw less current by a factor of 50 percent less, for home theatre a set of 8 ohm speakers is realistic as you will not place as much current demands on your PSU as opposed to a 4 ohm set. 4 ohms speaker sets are for the Car Audio spectrum as these can be powered by the Car alternator when the engine is on providing the needed current and power.
Impedance (Z) is known as equivalent resistance value of a circuit. A speaker coil has three parameters like coil resistance, coil inductance and coil capacitance, usually known as R, L, C. Impedance (Z) is calculated as R+kL+1/(kC) where K=2*Pie*F (F=frequency & Pie=3.14), R is the coil resistance in ohm, L is inductance value in milli-Henry and C is capacitance value in micro-farad. The unit of Z is ohm. Be remember, standard values of speakers are 4, 8 or 16 ohm. Here, Mr. Geoff clearly explained how we can obtain desired coil resistance with speaker having different coil resistance, like getting 4 ohm with 2 X 8 ohm speakers, or getting 4 ohm with 4 X 16 ohm speakers etc. to match desired value of output of amplifier.
1 total impedance IS THE LOWEST resistance that you're speaker will present to the amplifier IN REALLITY .... the speaker impédance is in relation with the frequency present to you speaker EX : more the frenquency is high the more and more impédance the speaker will have Impedance is dangerous when you're Re (speaker impedance WITOUT signal) is too low .... Ex .... 1.2ohm and my amp clip (current protect) no clipping at 4-8 or 1000 ohms 2 speaker in serie and paralle DON'T act the same way ...... Best is Parallel (sound , precision and phase) In serie one of the 2 woofer may act like a x-over low pass for the other driver
This video explains is very wrong !!!!!!! The impedance calculation is correct but when you move out from the numbers and calculation to real world you have to remember that speakers are coils that generate current on their connectors and when you install few driver in the same cabin connected in series the electronic waves that travel in the cabin will generate power in wires that kill your sound So do not use series connection when you deal with speakers ! This is not a resistor! a specially not in the same cabins to higher the impedance The correct way to do it is only parallel connections use resistors and capacitors to correct your impedance octave and SP Yuval
Hi! I have to 2 JL Audio subs, one is 2 ohms and the other 4 ohms, my question is: can I connect them to the same amplifier? And if if I can, how should I wire them?
I would think that a series resister would be a speaker fidelity disaster. This would be the same as using extremely high impedance ( long & thin) cables which demonstrably cause frequency based filtering & distortion. You really want the total speaker wiring impedance to be < 2% of speaker load impedance for an exceptional audio performance. Though 5% is usually considered quite adequate for PA which is something of an indictment on PA performance generally. Most PA gigs have atrocious fidelity and only succeed because it's ear splittingly loud with a chest thumping bass. Whether that is an issue, largely depends on venue. Not a so critical in noisy gigging environments like pubs/clubs or streets. Big problem in top performance auditoriums though. Church PA is usually pathetically bad. I know this is a controversial topic but IME within reason, it's true. However, whether it makes an audible difference on a specific system greatly depends on the performance of the rest of the system. Theory of errors says total system errors is the square root of the sum of errors squared = (E1^2 + E2^2 + ..... En^2)^(1/2). What this means is that fixing the largest error is the only thing that may noticeably improve a system but only if it is very significantly larger than any other error. If there are several errors of similar magnitude, noticeable improvement will only be achieved once the last of them is fixed. This is all fine if you can actually measure distortion and filtering problems in a system. Often, that is extremely difficult. You many be able to implement a null test in some situations but you have to be scrupulous how you do that and probably wont be able to fully isolate problems, especially after an amp or with digital devices. So your only option is to go over every single bit of kit, connection and cable and check it's compliance to a high standard. Check, gain structure, get unity signal at the earliest possible point and maintain it at every step. Check impedance matching is correct. Check connection impedances. regularly service gear and use a quality cleaner/conditioner/lube on all controls, pots faders, even trimmers something like Deoxit F5. It's expensive but wort it. Don't use cleaners from cheep chain stores they don't do a good job and don't last.
Thanks for wonderful information. I want to connect 8 ohms qty-12 speakers in my house. Can I? If possible what will be wiring configuration from speakers to an amplifier
If I associate speakers with diferent impedance value, respecting the minimum impedance of amplifier, is ok?! For example: Associating a speaker midrange or even a woofer 4 Ohms with a tweeter 6 Ohms in a amplifier 4-16 Ohms is alright?! Thank You!
So how this work does the chip detect the value of your speaker not to burn them as if I use a chip that works with 9 & 24V for 50W max & I use a lower speaker like 20W 4ohm I could potential burn the speaker at 24V amplifier
So this means my little 100w nobsound mono sub amplifier could not handle 0.5ohms because I’m using 3 4ohms subs and It would go into the protection mode or am I just dumb?
i have 2x15s .....My amp ONLY has 8ohm/16ohm. .... So the only way I can safely use the 2x15 is by running them in Series?? can someone verify that please. dont want to fry my amp. Never hooked up series before. Im gonna run from the 1st speakker NEGATIVE to the 2nd speaker POSITIVE. & THAT WILL MAKE IT SERIES & MAKE MY 4 OHM SPEAKERS 8OHMS. rIGHTS?
But I still have one question: I have a marshall mg100dfx turned in a head.. and this amp has 100w. At the loudspeaker output it only says (use minimum 4ohms) so my question is: I own a marshall 1936 2x12 in parallel so each speaker has 8ohms and 75w... Can I plug my mg100dfx in stereo (in only one speaker) with my joyo bluejay bantamp on another? The higher resistence (8ohms) of the cabinet will low the voltage of 100w and I won't blow my 75w celestions? Thank you very much!!
Here is a graphical way to arrive at equivalent resistance of two resistances in parallel. Draw a horizontal line near the bottom of a piece of paper. That is the ground. Draw a vertical pole coming out of the ground whose height is proportional to the larger of the two resistances. Some inches away from the first pole, draw a second vertical pole out of the ground whose height is proportional to the second resistance. So, if you are connecting in parallel, an 8-ohm and a 4-ohm resistance, one pole should be twice as tall as the other. Now draw a line from the top of each pole to the base of the other. The height of the point of intersection of the two diagonal lines above the ground is the equivalent resistance of the two in parallel. (It doesn't matter how far apart the poles are.) One important thing you can see from this method is that the equivalent resistance is always less than the smaller of the two.
Simplest thing to do is to get a amp that has 4-8 channels and only use one pair on each channel. Then you don't have to think about it. No one understands it anyhow. It's black magic and witchcraft... :D :D
it does not matter how many speakers you wire in parallel, the impedance will always be a little bit above half the impedance of the speaker with the lowest value and will drop, with every extra speaker a little bit more towards the exact half. for example: two 4 ohm speakers = 2,5 ohms - three 4 ohm speakers = 2,2 ohms - twenty 4 ohm speakers = 2,05 ohms - one 4 ohm speaker + four 8 ohm speakers = 2,5 ohms ...and so on.
What I really learnt was how not to go wrong while matching the speakers with the amplifier. But what I wish to know is whether using multiple speakers in parallel or series make any difference in audio quality.
😢 BOSS salamat salamat gagawin kona sana masisira pa ampli ko AY ITO ANG MALAKE KONG TANONG PANO NAMAN PO KUNG TWO OHMS WOOFER KO HANE TAPOS TWO TWEETER KO 4OHMS PANO PO IYON sana matulungan ako wala n kase budget kinalas kolang yung tweeter sa speaker na pangbahay 😅
O U T S T A N D I N G ! Excellent info on speaker impedance without getting overly technical. Most obliged G3 sir. Really appreciate your altruistic labor here. All the best.
Help... Seeking Woofer replacement, Says minimum rms 8 ohm ??? On An amp made for speakers/woofer 120 watts Per Channel... is a Fisher 15inch woofer speaker 1992 Realistic system 1220 from radio shack... No help finding info lol... On Woofer stamped FISHER SC80741-5B F20 JAPAN NAE ,...... Ton of bass that shakes Whole house.... 1 still shakes house but 2 = WHOLE HOUSE and a bit of neighbors ... There is a pic on a catalogue site for Radio Shack 1992 System 1220 ... Vented Plenty o room for woofer and non bezeled hold 8 heavy long thick screws for 15” woofer... 3 Way speaker all wired to same port (red/black)...
Hello, i have a 5 channel amplifier my front speakers are 5x7 4 ohm and rears 6x9 4 ohm they take 110w rms and my amplifier produces 110w x4@ 2ohm and only 50w x4 @4 ohm is there a way i could wire it to make the high speakers 2ohm or would this damage the speakers? I feel i am not delivering enough watts to my high speakers
Dang, this is soooo confusing. As most receivers accept TWO speaker pairs (four speakers) and allow you to "play" all four. Using your logic that would present a 2ohm load (with four 8ohm speakers of course). Most if not all receivers can't drive a 2ohm load. Over the years I have "played" four speakers (8ohm) on many different receivers and integrated amps, even a lowly Pioneer SX-434 budget unit. Never had a problem. I always thought that a PAIR of 8ohm speakers (one on left and one on right channels) presented a combined load of 8ohms. Thus two PAIR of 8ohm speakers presented a 4ohm load??
Hi Marty, You are correct that two 8 ohm speakers connected in parallel across an amp gives the amp a 4 ohm load. That is also what I say in the video. As stated at the start and end of the video, the video shows what happens for one side of the amp (let's say the left channel). Where as you are talking about pairs of speakers (for left and right channel), I talk about one channel only. So I believe we are on the same page, and it should not be too confusing. does this help? Geoff
Hmmm, it was so clear to me ... and I'm certainly not a sound engineer (far from it)! IMO, this video explains in simple terms impedance without getting too technical. The term itself, 'impedance' is by definition easy to understand: To IMPEDE or in this context of sound and speakers, 'to RESIST / RESISTANCE'. It should be expected, anticipated, that there will be some v-e-r-y BASIC math here and in fact, there is even a helpful automatic calculator shown as well as color coded wires. Can't get any easier than that.
Video jumps right into how to wire speakers based on their own impedance but doesn’t really explain at the beginning what ohms are are and why it’s important etc.
What if you had to wire two 4 ohm component speakers in parallel because they each had built in crossovers, yet needed a total load impedance of 4 ohms? Could you add a heavy duty high wattage 2 ohm resistor inlee to increase the total impedance?
Ahhhhh.....ok. Can I strap 2 mono block amplifiers, both are stable , ...." Supposedly", down to 1 ohm....but, one is 1000 watts, the other, states 3000, but I'm sure it's 15 hundred. Can these amps be strapped. Currently they're Daisy chained, powering 2 different speaker enclosures. I want to get rid of one speaker box, and put all the power into the bigger subs.
Sir, Im from Philippines. And i want to ask something. I have 300w amplifier and i want to buy 4 speakers..so in one speaker how many watts do i buy.. And i want to connect in parallel connections.. Thank you sir..
What If I hook a pair of 6 Ohm (or 4/8 Ohm) satellite speakers in Parallel with a Cambridge Soundworks Ensemble ii module (which has 6 Ohm woofers)? There are only two sets of 5-way Binding posts for both speaker wire and to hook up to the amplifier. No speaker inputs. Will I damage the amplifier, especially one rated for a load impedance of 2-8 Ohms?
i have a bluetooth speaker harman kardon play 2 and the speaker is blown out,i read the specs of the harman kardon and it says Input Impedance250mV/>10k ohms..the original blown out speaker was 4 ohms my question is can I replace it with an 8ohm rated speaker looking at the amps specs? Thanks
Great solution. But while it talks about the impedance ..what about the watts? Suppose I need to connect 4ohm full range (15 watt) + 6 ohm (30 watt) tweeter to an amp which has 100 watt power and 6 ohm Minimum Load Impedance, per channel. Note: 2 speakers will be connected to a single channel (100 Watt/6 Ohm), so total 4 speakers(2 full/2 tweeters). So as per this video, I need to add one 6ohm resistor before connecting 2 speakers in parallel. But then should I also need to match the watts? Or should I go with the lesser watt resistor, say around (30 or 50 watts per channel).
My speaker enclosure having 3 speakers ..it is mentioned 8ohms..my amp can handle 4to 16 ohms....my question is.. unfortunately the mid speakers are not working and I got a 4 ohm speakers with the same size...I didn't found any crossover in the speaker enclosure ..only one caps is hooked with tweeter...my woofer is 8 ohms..so now does it required to add additional resistance with the mid speakers....
I know this looks like a good video, but the single most important thing is that you need to consider was left out. A 4ohm speaker is not 4 ohms. An 8 ohms speaker is not 8 ohms. These are just averages. A speakers resistance is frequency based. High notes are high resistance, and low notes are low resistance. So, if we use the examples shown in this video, can you go wrong if you simply connect a pair of 8 ohm speakers to the amp? Yes you can. Easily. If you look at the spec sheet for your speakers, you are going to see 2 numbers. A nominal impedance like what was shown in the video, and a minimum impedance. The minimum impedance is the lowest possible resistance the speaker can ever show the amp. Its a worst case scenario, and is always lower than the nominal impedance rating. If we go back to the amp in the video and we have 2 pairs of speakers, both rated at 8 ohms, but one pair drops down to 4 ohms, and the other pair drops down to 2 ohms, only the first pair that drops down to 4 ohms would work. The 2nd pair would not. How something this fundamental was left out of the discussion, is stunning. Any textbook on basic audio will contain this information.
Hmmm, it was so clear to me ... and I'm certainly not a sound engineer (far from it)! IMO, this video explains in simple terms impedance without getting too technical. The term itself, 'impedance' is by definition easy to understand: To IMPEDE or in this context of sound and speakers, 'to RESIST / RESISTANCE'. It should be expected, anticipated, that there will be some v-e-r-y BASIC math here and in fact, there is even a helpful automatic calculator shown as well as color coded wires. Can't get any easier than that.
My main speakers are Infinity RS III/B that are 4 ohm, but actually can drop down to 1.8 ohms at specific frequencies. Because of their EMIT tweeters, which I really like, I don't want to switch to a different speaker.
why isn't there anything explaining what is optimal for a damn 3ohm subwoofer?? WTF man . can someone please give me feedback other than buying specific brands that are capable what other options can be done if you only have a 2ohm to 4ohm rating good god
hello sir .. it is ok to add resistor to match the impedance ? because i have 800watts 4ohm speaker and i cant use my amplifier 8ohm load ....what resistor i need for my speaker to match the ampli?
In theory you could add a 4 ohm resistor, however in practice you will not find a 4 ohm resistor able to handle 800 watts of power. And if you did, the speaker would only get half the power that the amplifier supplies. If you need to drive the speaker at its maximum, the better solution is to buy a commercial amplifier capable of working into 4 ohms or even 2 ohms. Geoff
so..considering correct crossover points is a 100 watt tweeter overkill on a 100 watt channel as the cross over blocks low frequency and as such only 15-20 watts of high frequency is being allowed through that channel.
I have a 4 Ohms Speaker and a 8 Ohms High-Freq. driver and A 8Ohms 300Wmax 2-way Crossover.. Can I setup with these 2 speakers or do I have to change it to 8-8 Ohms?
one the two KEF 101 speakers has a crackle sound on one of the speakers, but I don't know if it is the tweeter or the board. Could you assist/direct me in this matter? Thank you
my RX-318BK (impedance 8~16 ohms) has 4 speaker outputs/hookups, so does that mean i have 4 amps (so does that mean each amp has a speaker impedance of 8~16 ohms)?
I have a Klipsche ProMedia 4.1 system with subwoofer R and L front and R and L Rear. the speakers get there power from the subwoofer. If i have 2 more of the satellites can i hook them to the amp so i have 2 R and 2 L front speakers?
What are you talking all about?? Who will connect more then one speaker in one input in amplifier?? and why when there are two or more (in surround) inputs in amplifiers???? Question is simple, can be two 3.2 ohms speakers connected to two connections with 6 ohms output impedance amplifier??
Does this apply to subwoofer plate amp to I have a Klipsch bash 4.1 system but both subs are foam rot dunno how to fix so buying new subs instead can anyone answer my question?
I rather hate that your website doesn't allow for the input of dual voicecoils, only singular. While I understand that it'd be a massive undertaking to address, this fact alone renders your site useless to multitudes of visitors.
So if the sub is a 4 ohm and the amp says it can do 2 ohm would the amp put out more power if I purchase a two ohm sub? The two ohm rating is higher on the back of my old school 2 channel mono amp from mtx. Or does this already drop it to 2ohm , I'm only using one sub bridged
Hello sir... How about speaker 400watt 8ohmsX2 loops to speaker 450 watt 8ohms X2.. 2 channel amplifier ... How much total impedance and watt of speaker?
Hi Bro, I have " JBL GTX-1200T 12 inch Car Audio Subwoofer Tube 4 OHM (1200 Watt)--->Power Handling RMS is 300 Watts" Shall i choose "SONY XM-N502 2-Channel Stereo Amplifier --> It's Power @4 OHM--->175 W x 1 (BTL)"... whether it is a best match ? If not-----kindly share your suggestions to choose the BEST AMPLIFIER ......
The way my Uncle Ned explained it was a cow eat hay, then u milk 🥛 the cow and have milk, then you use the milk to make a cake 🎂, then u put icing 😉 on the cake 🎂 and then u eat the cake. Think of the candles 🕯 on the cake as Dolby Atmos
Hello. I have car radio. Radio has 50w 4ohm . and I want to connect two speakers in one channel. 75w 8ohm. And another speaker has 50w 4ohm. So how I can connect. Series or parallel?
I HAVE TWO SPEAKER ,ONE IS 18 INCH 1500 WATT AND ANOTHER IS 12 INCH 500 WATT,CAN I CONNECT IT IN PARALLEL CONDITION ?IS IT RELIABLE TO USE THIS TWO SPEAKER IN PARALLEL IN 2200WATT AT 4 OHM POWER AMPLIFIER?
.... ist ok beim "nackten" Lautsprecher. Beim Anschluss von Mehrweg Boxen passt die parallele Schaltung auch noch, aber bei der Serienschaltung muss berücksichtigt werden, dass nur absolut baugleiche Baugleiche LS - Boxen den Sound nicht verändern. Spannend wird es bei verschiedenen Typen! DIE FREQUENZWEICHEN ergeben zufällig einen guten oder miesen Sound bei Serienschaltung. Viel Spaß beim Experimentieren!
In the manual for the Sansui 5000 is the following: Caution: Never attempt to use two or three 8 ohm speaker systems at the same time. For use with three speaker systems, the impedance must be more than 8 ohms each. For use with two speaker systems (A+B or A+C) the combined impedance of the systems must be more than 8 ohms. I am not understanding exactly what this means. My plan was to connect 2 pairs of Sansui SP-2000 speakers, which are 8 ohm speakers, but based on this warning I don't think I can now do this? Can you advise me? Thanks
* *Mike Cook,* * You posted your comment 4 years ago. *How did this turn out for you?* I have 6 ohm home stereo speakers and afraid to hook them to my 8 ohm amp.
Please tell me that my amplifier is of 4-16 ohms please tell me this principle only applies on one channel 4-16 ohms or both channel impedance total should be 4-16 ohms or one channel for 4-16 ohms and other for also 4-16 ohms
Hi, I have a vintage amp and my output is 16 ohms. I have a single woofer ( 16 ohm) and Tweeter (16 ohm) hooked up to the amp through a cross-over. My tweeter is toast so I bought a new Tweeter from Pyle ( PH-391) but it is only 8 ohms. How do I wire this into my set up. My cross-over has a 15 ohm and 33 ohm resistor along with a 3.0 uf Capacitor. Do these new tweeters even need a cross-over ..I am confused. Any help appreciated.
My rating on my amplifier is RMS Power at 4-Ohms: 450W x 1 RMS Power at 2-Ohms: 750W x 1 RMS Power at 1-Ohm: 1000W x 1 And I want 2 subwoofers what’s the max rms I can get between 4-ohm or 2-ohm or even 1-ohm I have a Memphis prx1.1000 mono block class D Please help
Sup bro, you want to go 1 ohm if you'd like to pop some windows, getting at 1 ohm you'll need 2x 2 ohm Subs connected in parallel, (both "+" together @ + on amp and same with the " - " on both) That's if you are going to get SVC subs, on DVC subs it'll be a different approach you'll have to take
I want to hook up 25W 3" 32ohm speakers to a 1050W 2 ohm amp. How many speakers do I need to buy? How much speaker wire and what gauge wire should I get? Should I use a bandpass enclosure for the ones I use as subs? How do I calculate the frequency the box I need to build will need to be tuned to? XD
:technically will work but is really practical: ?,,, i often use series parallel and star wiring ,,, that'll pop the brain when dealing with many pan tilt cameras. currently on my big old pioneer 2 channel amp i have on each channel 2 8 ohm and 1 six ohm just need a meter and matching pairs. i wouldn't mix many different brands, ohm can be an issue but your getting into power draw, as well. i find speaker selection switches to be very cheaply made,, so if your using quality wire don"t interrupt that with some cheap brass coated thing. are we concerned with resistor ratings,, watts,, tolerances so on?
Sir I have two 6 ohm 5watt speakers and 2 8 ohm 10 watt speakers.and I have a amplifier of 15w+15w. Pam8610 board how to connect speakers in right manner. I have audio crack in high volumes. Sir please tell me how to Slove this problem
If I have 2 speaker cabinets that are 4x12 and to match the cabinets at 8 ohms for the setting, what should I set my 50W Marshall plexi at your play thru both cabs safely? It has a 4 ohm 8ohm and 16ohm setting.... even with the video I’m totally lost
You can not surpasse 4-16 Ohms for one channel Or for each channel? For exemple: Ampli 2 channels, and each has 16 ohms speakers, will it work? Or it will be addited like 32 Ohms?
I spend a great deal of time updating and answering questions from the webpage. If you have a specific question, please read the relevant article on the webpage and post your question there. Rarely do I get to answer questions posted here in UA-cam, although others often help out. geoffthegreygeek.com/category/home-av/connecting-speakers/
Geoff. Here is what I sent you in an email like you asked. Please let me. Know if you received it. Maybe someone else can chime in if they know. You would think as long as I have been playing I would have ran I to this, but this is a first. here it is.
Hey Geoff.
I have a Bugera Vintage V22 Infinium. It is a 22 watt combo amp. On the back is a jack for connecting an extension cab. Where the jacks are for the extension speaker, and the jack, and plug for the speaker in the amp it states
"amplifier output 22watts
4 ohms minimum speaker impedance.
Jacks Paralleled".
(The speaker in the amp is 8 ohms)
Next to the jacks is a switch that has a setting for 4, 8, and 16 ohms.
The extension cab is an Egnater 1x12 and is 16 ohms. If I plug this in to the extension jack, what would I set the impedance switch to? I do not want to damage my amp.
You are the first person I have come across online who seems to know what they are talking about. I hope you can help me with this
dilemma, but I'm sure there are plenty of people on here that have an answer, but I would like to hear all opinions including the Grey haired geek.
Thank you in advance,
Assuming, the connection was done correct. Does multiple speakers connected to one channel affect amps? In other words, do you get the same output from the amp per speakers as you would if you connect one speaker to one channel?
Hi sir, thanks very much for the vdo, this one vdo gave me a clear picture of impedance,Hi I have a small doubt. please give your expertise, what will be the formula for connecting two speaker's of different impedance(say 1 speaker with 8ohms and other with 4ohm) in parallel... i know the calculation for series (10+4=14 ohms),I am planning to build a diy soundbar with 2.0 amplifier board (stereo left n right channel), and I want to add 1 woofer to the amp,(thereby total 3 speaker for a two channel amp).
How i can connect 8 speakers 8 ohm to 1 ohm amplifier (Taramp)
page not found.
If your speakers are rated at 8 ohms, that means impedance will vary from 16ohm and during heavy, complex bass and orchestral music, it will sure drop down to 3.2 ohms. While 4 ohm speakers will drop down to 1, 2 or zero ohms and drain the current from your amplifier severe. The more high current you provide, the more headroom you have, also with high current amplifier you prevent amp and speakers from potential damage - clipping! After trying 4, 6 and 8 ohm speakers, I realized minimum power amp is 100watts per channel into 8 ohms and close to 200watt into 4 ohm, to drive most speakers. As for 4 ohm speakers or connecting 2 pairs of speakers, they require at least 150watt/ch high current amplifier to drive them well. For a year I drove Dynaudio 4 ohm floorstander with 75w/ch high current amp and that power wasn't enough to take control of the bass and soundstage (stereo mode). It was a torture like driving heavy Land Rover with a 75 horse power engine. While minimum requirements for such a beast is 120hp. Hope this helps someone :)
Still totally no idea what is impedance. Title of the video should be "impedance calculation", not understanding impedance.
Fair Comment Junn. I find most people don't want to know the technical details, just what to do about impedance, hence the lack of a technical description. That is why I provided links in the video to my various articles where there is a better explanation. perhaps start with geoffthegreygeek.com/understanding-speaker-impedance/.
Geoff the Grey Geek
totally agree
my brother impedance is just a fancy word for the electric resistance of your speaker coil
Impedance is defined as TOTAL opposition to current flow in an ac circuit. This total opposition consists not only of dc resistance, but inductive reactance(measured in ohms), and capacitive reactance(measured in ohms).
Basically, you never want your Ohm rating to be lower than what your amp lists, because less resistance means there is more current going through the amp, and the amp can literally be fried. Too high of an impedance, and your volume will be too low because there is too much resistance.
This video is intended to make one understand what impedance you should be looking for when connecting speakers to an amp, but it doesn't explain the concept of impedance itself.
Oh wow so I really did fry my amp! And I thought the higher the number the better! I was running 16 ohm to my monoblock 4-8ohm amp! Thanks now I know
Just realize that my chinese 5.1 speakers are suffering from a mod i did 😅
An impedance assigned to loudspeakers is essentially a "nominal" impedance. Impedance varies with frequency so there is an "impedance curve" for every loudspeaker or speaker system. For instance my AR-3a speakers have a nominal impedance of 4 ohms, however this speaker's impedance varies from a low of 2.5 ohms at 900 Hz to 22 ohms at about 45 Hz with various settings of the speaker's mid-range and tweeter controls. The overall impedance at most frequencies is close to 4 ohms.
This is something you should know, but in general this video gives excellent advice on how to hook up speakers, but there will be some speakers that deviate from this simple solution.
yea that is the kind of information you would expect to hear given the title.
HURRAH...that was the best explanation I've seen so far...now I completely get it..!!!
Thank you 😃👍
disastrous for the poor amp! That made me laugh! Thanks for such a great video, may it live long on UA-cam.
This is hands down the best video for information on impedance. I'm no expert, but thanks to this I was able to wire my subs down to a safe 2 Ohm load.
Is a 70s porn movie playing in the background.. 😝
i almost choke myself with your coment while i was drinking some beer and reading unsuspiciously got that...You really know about jokes and tell us also which movie is .thnks
This is old fashioned, produce aisle music, Mister Guy Who Eats All His Meals From A Microwave Oven.
Good god the music is simultaneously incredible and painful
Yes it is
Something so sweet must have a thorn somewhere , lol.
Ha! I enjoyed it as background. No problem at all.
80's sitcom
Good article for the non technical people. However, there are several generalizations that are simply not correct. The amp indication about impedance is a convention, what really matters is the limits of the amplifier of delivering voltage and current. I certainly can connect a 4ohm to a 8ohm transistor amplifier. It won't explode unless there is no current limitation and I put volume to insane levels. If I connect a 16Ohm speaker, the limit would be the voltage the amp can deliver, but for hifi there are no 16Ohm speakers that I am aware of.
Please read the rating of any amp. It will state power at 8 and also at 4 ohms, the latter being usually lower.
BTW, 1 watt with regular sensivity speakers is very loud for home use. I monitor the power in my amp and I read 50mW-0.2W with my 89dB speakers in my studio. In my living room if I reach 2W I will have complaints.
I repair amplifiers. This video is great for my business! Thanks!
Giblet535 me too, letr blo
this is just a good way to confuse ppl. The result...see the comments below thats the best proof
Telephone speakers
this video was just fine. maybe the title is what was misrepresenting what the video would be explaining but what the video did explain it did with great detail. honestly the level of detail and comprehension used to explain impedance in this video is that of a 1st grade math teacher. i mean cmon how many different ways did they explain how to calculate impedance using simple math.
Hmmm, it was so clear to me ... and I'm certainly not a sound engineer (far from it)! IMO, this video explains in simple terms impedance without getting too technical. The term itself, 'impedance' is by definition easy to understand: To IMPEDE or in this context of sound and speakers, 'to RESIST / RESISTANCE'. It should be expected, anticipated, that there will be some v-e-r-y BASIC math here and in fact, there is even a helpful automatic calculator shown as well as color coded wires. Can't get any easier than that.
4 ohm speakers draw more current, 8 ohms speakers draw less current by a factor of 50 percent less, for home theatre a set of 8 ohm speakers is realistic as you will not place as much current demands on your PSU as opposed to a 4 ohm set. 4 ohms speaker sets are for the Car Audio spectrum as these can be powered by the Car alternator when the engine is on providing the needed current and power.
1600 watt rms streo amplifier me 6 speaker connection kaise kare.
2 pec. 12 inch speaker 8Ω= 250 watt.
2 pec. 12 inch woofer 4Ω = 400 watt.
2 pec. 10 inch woofer 8Ω = 80 watt.
Impedance (Z) is known as equivalent resistance value of a circuit. A speaker coil has three parameters like coil resistance, coil inductance and coil capacitance, usually known as R, L, C. Impedance (Z) is calculated as R+kL+1/(kC) where K=2*Pie*F (F=frequency & Pie=3.14), R is the coil resistance in ohm, L is inductance value in milli-Henry and C is capacitance value in micro-farad. The unit of Z is ohm. Be remember, standard values of speakers are 4, 8 or 16 ohm.
Here, Mr. Geoff clearly explained how we can obtain desired coil resistance with speaker having different coil resistance, like getting 4 ohm with 2 X 8 ohm speakers, or getting 4 ohm with 4 X 16 ohm speakers etc. to match desired value of output of amplifier.
Do you have a video I can watch? I would totally watch!
why its called impedance not normal resistance , why the change in names
@techmonster2632 because its in AC current
i was watching this video and my wife asked if I'm crazy or something .
She was jealous you were listening to the woman talking.
Im still taking notes and shit.
1 total impedance IS THE LOWEST resistance that you're speaker will present to the amplifier IN REALLITY .... the speaker impédance is in relation with the frequency present to you speaker EX : more the frenquency is high the more and more impédance the speaker will have
Impedance is dangerous when you're Re (speaker impedance WITOUT signal) is too low .... Ex .... 1.2ohm and my amp clip (current protect) no clipping at 4-8 or 1000 ohms
2 speaker in serie and paralle DON'T act the same way ...... Best is Parallel (sound , precision and phase) In serie one of the 2 woofer may act like a x-over low pass for the other driver
Thank you. Currently getting to install a whole home audio setup
i want to do the same, but its a little bit confusing at first, trying to get the right gear!
This video explains is very wrong !!!!!!!
The impedance calculation is correct but when you move out from the numbers and calculation to real world you have to remember that speakers are coils that generate current on their connectors and when you install few driver in the same cabin connected in series the electronic waves that travel in the cabin will generate power in wires that kill your sound
So do not use series connection when you deal with speakers ! This is not a resistor! a specially not in the same cabins to higher the impedance
The correct way to do it is only parallel connections use resistors and capacitors to correct your impedance octave and SP
Yuval
Hi! I have to 2 JL Audio subs, one is 2 ohms and the other 4 ohms, my question is: can I connect them to the same amplifier? And if if I can, how should I wire them?
Try avoiding miss matched ohm
A person who knows ITRW seldom do things match up to the caculations ,like in the vidio
Hello, is it okay to use two 350watt speakers with 1000watt amplifier?? Or the speaker will blow??
Yeah right. Speakers are NOT REALLY connected in series. NEVER it be possible.
I would think that a series resister would be a speaker fidelity disaster. This would be the same as using extremely high impedance ( long & thin) cables which demonstrably cause frequency based filtering & distortion. You really want the total speaker wiring impedance to be < 2% of speaker load impedance for an exceptional audio performance. Though 5% is usually considered quite adequate for PA which is something of an indictment on PA performance generally. Most PA gigs have atrocious fidelity and only succeed because it's ear splittingly loud with a chest thumping bass. Whether that is an issue, largely depends on venue. Not a so critical in noisy gigging environments like pubs/clubs or streets. Big problem in top performance auditoriums though. Church PA is usually pathetically bad.
I know this is a controversial topic but IME within reason, it's true. However, whether it makes an audible difference on a specific system greatly depends on the performance of the rest of the system. Theory of errors says total system errors is the square root of the sum of errors squared = (E1^2 + E2^2 + ..... En^2)^(1/2). What this means is that fixing the largest error is the only thing that may noticeably improve a system but only if it is very significantly larger than any other error. If there are several errors of similar magnitude, noticeable improvement will only be achieved once the last of them is fixed. This is all fine if you can actually measure distortion and filtering problems in a system. Often, that is extremely difficult. You many be able to implement a null test in some situations but you have to be scrupulous how you do that and probably wont be able to fully isolate problems, especially after an amp or with digital devices. So your only option is to go over every single bit of kit, connection and cable and check it's compliance to a high standard. Check, gain structure, get unity signal at the earliest possible point and maintain it at every step. Check impedance matching is correct. Check connection impedances. regularly service gear and use a quality cleaner/conditioner/lube on all controls, pots faders, even trimmers something like Deoxit F5. It's expensive but wort it. Don't use cleaners from cheep chain stores they don't do a good job and don't last.
Thanks for wonderful information.
I want to connect 8 ohms qty-12 speakers in my house. Can I? If possible what will be wiring configuration from speakers to an amplifier
If I associate speakers with diferent impedance value, respecting the minimum impedance of amplifier, is ok?! For example: Associating a speaker midrange or even a woofer 4 Ohms with a tweeter 6 Ohms in a amplifier 4-16 Ohms is alright?! Thank You!
All this talking about one amp output!! Then what about 2 or 4 amp output??
The back track music completes this video. Well done. What's the track?
So how this work does the chip detect the value of your speaker not to burn them as if I use a chip that works with 9 & 24V for 50W max & I use a lower speaker like 20W 4ohm I could potential burn the speaker at 24V amplifier
So this means my little 100w nobsound mono sub amplifier could not handle 0.5ohms because I’m using 3 4ohms subs and It would go into the protection mode or am I just dumb?
i have 2x15s .....My amp ONLY has 8ohm/16ohm. .... So the only way I can safely use the 2x15 is by running them in Series?? can someone verify that please. dont want to fry my amp. Never hooked up series before. Im gonna run from the 1st speakker NEGATIVE to the 2nd speaker POSITIVE. & THAT WILL MAKE IT SERIES & MAKE MY 4 OHM SPEAKERS 8OHMS. rIGHTS?
But I still have one question:
I have a marshall mg100dfx turned in a head.. and this amp has 100w. At the loudspeaker output it only says (use minimum 4ohms) so my question is: I own a marshall 1936 2x12 in parallel so each speaker has 8ohms and 75w... Can I plug my mg100dfx in stereo (in only one speaker) with my joyo bluejay bantamp on another?
The higher resistence (8ohms) of the cabinet will low the voltage of 100w and I won't blow my 75w celestions? Thank you very much!!
Here is a graphical way to arrive at equivalent resistance of two resistances in parallel. Draw a horizontal line near the bottom of a piece of paper. That is the ground. Draw a vertical pole coming out of the ground whose height is proportional to the larger of the two resistances. Some inches away from the first pole, draw a second vertical pole out of the ground whose height is proportional to the second resistance. So, if you are connecting in parallel, an 8-ohm and a 4-ohm resistance, one pole should be twice as tall as the other. Now draw a line from the top of each pole to the base of the other. The height of the point of intersection of the two diagonal lines above the ground is the equivalent resistance of the two in parallel. (It doesn't matter how far apart the poles are.) One important thing you can see from this method is that the equivalent resistance is always less than the smaller of the two.
lol @ the background music. It's like department store shopping jacked up on roids and looping endlessly. but thanks for the info! :D
Geoff, THX for this very helpful Video. My question is : Does wiring 2 pairs of Bookshelf speakers in Series affect the sound quality ?
I feel like Charlie Brown at school with the teacher says "wah, wah wah wah." To him.
Simplest thing to do is to get a amp that has 4-8 channels and only use one pair on each channel. Then you don't have to think about it. No one understands it anyhow. It's black magic and witchcraft... :D :D
this is excellent! very good video. every day i learn always something useful congratulations and thanks!
it does not matter how many speakers you wire in parallel, the impedance will always be a little bit above half the impedance of the speaker with the lowest value and will drop, with every extra speaker a little bit more towards the exact half.
for example: two 4 ohm speakers = 2,5 ohms - three 4 ohm speakers = 2,2 ohms - twenty 4 ohm speakers = 2,05 ohms - one 4 ohm speaker + four 8 ohm speakers = 2,5 ohms ...and so on.
What I really learnt was how not to go wrong while matching the speakers with the amplifier. But what I wish to know is whether using multiple speakers in parallel or series make any difference in audio quality.
Very clear, now I understand! Thank you much!
How about 5 speaker? Let say 2 woofer 2 tweeter and 1 midrange.. How can make the output of 4 ohm
😢 BOSS salamat salamat gagawin kona sana masisira pa ampli ko AY ITO ANG MALAKE KONG TANONG PANO NAMAN PO KUNG TWO OHMS WOOFER KO HANE TAPOS TWO TWEETER KO 4OHMS PANO PO IYON sana matulungan ako wala n kase budget kinalas kolang yung tweeter sa speaker na pangbahay 😅
O U T S T A N D I N G ! Excellent info on speaker impedance without getting overly technical. Most obliged G3 sir. Really appreciate your altruistic labor here. All the best.
Help... Seeking Woofer replacement, Says minimum rms 8 ohm ??? On An amp made for speakers/woofer 120 watts Per Channel... is a Fisher 15inch woofer speaker 1992 Realistic system 1220 from radio shack... No help finding info lol... On Woofer stamped FISHER SC80741-5B F20 JAPAN NAE ,...... Ton of bass that shakes Whole house.... 1 still shakes house but 2 = WHOLE HOUSE and a bit of neighbors ... There is a pic on a catalogue site for Radio Shack 1992 System 1220 ... Vented Plenty o room for woofer and non bezeled hold 8 heavy long thick screws for 15” woofer... 3 Way speaker all wired to same port (red/black)...
Hello, i have a 5 channel amplifier my front speakers are 5x7 4 ohm and rears 6x9 4 ohm they take 110w rms and my amplifier produces 110w x4@ 2ohm and only 50w x4 @4 ohm is there a way i could wire it to make the high speakers 2ohm or would this damage the speakers? I feel i am not delivering enough watts to my high speakers
Dang, this is soooo confusing. As most receivers accept TWO speaker pairs (four speakers) and allow you to "play" all four. Using your logic that would present a 2ohm load (with four 8ohm speakers of course). Most if not all receivers can't drive a 2ohm load. Over the years I have "played" four speakers (8ohm) on many different receivers and integrated amps, even a lowly Pioneer SX-434 budget unit. Never had a problem. I always thought that a PAIR of 8ohm speakers (one on left and one on right channels) presented a combined load of 8ohms. Thus two PAIR of 8ohm speakers presented a 4ohm load??
Hi Marty,
You are correct that two 8 ohm speakers connected in parallel across an amp gives the amp a 4 ohm load. That is also what I say in the video. As stated at the start and end of the video, the video shows what happens for one side of the amp (let's say the left channel). Where as you are talking about pairs of speakers (for left and right channel), I talk about one channel only.
So I believe we are on the same page, and it should not be too confusing.
does this help?
Geoff
Thanks Geoff, a lucid explanation. Let's face it , I ain't no audio expert! Just a guy trying to understand all this stuff.
Hmmm, it was so clear to me ... and I'm certainly not a sound engineer (far from it)! IMO, this video explains in simple terms impedance without getting too technical.
The term itself, 'impedance' is by definition easy to understand: To IMPEDE or in this context of sound and speakers, 'to RESIST / RESISTANCE'. It should be expected, anticipated, that there will be some v-e-r-y BASIC math here and in fact, there is even a helpful automatic calculator shown as well as color coded wires.
Can't get any easier than that.
Video jumps right into how to wire speakers based on their own impedance but doesn’t really explain at the beginning what ohms are are and why it’s important etc.
What if you had to wire two 4 ohm component speakers in parallel because they each had built in crossovers, yet needed a total load impedance of 4 ohms? Could you add a heavy duty high wattage 2 ohm resistor inlee to increase the total impedance?
Yes and in Winter time ypull get some extra heat for home
Ahhhhh.....ok. Can I strap 2 mono block amplifiers, both are stable , ...." Supposedly", down to 1 ohm....but, one is 1000 watts, the other, states 3000, but I'm sure it's 15 hundred. Can these amps be strapped. Currently they're Daisy chained, powering 2 different speaker enclosures. I want to get rid of one speaker box, and put all the power into the bigger subs.
Sir, Im from Philippines.
And i want to ask something. I have 300w amplifier and i want to buy 4 speakers..so in one speaker how many watts do i buy..
And i want to connect in parallel connections..
Thank you sir..
Excellently done video the only thing I would add is does going on 4 ohms versus 8 ohms change the actual volume sound
What If I hook a pair of 6 Ohm (or 4/8 Ohm) satellite speakers in Parallel with a Cambridge Soundworks Ensemble ii module (which has 6 Ohm woofers)? There are only two sets of 5-way Binding posts for both speaker wire and to hook up to the amplifier. No speaker inputs.
Will I damage the amplifier, especially one rated for a load impedance of 2-8 Ohms?
i have a bluetooth speaker harman kardon play 2 and the speaker is blown out,i read the specs of the harman kardon and it says Input Impedance250mV/>10k ohms..the original blown out speaker was 4 ohms my question is can I replace it with an 8ohm rated speaker looking at the amps specs? Thanks
Great solution. But while it talks about the impedance ..what about the watts? Suppose I need to connect 4ohm full range (15 watt) + 6 ohm (30 watt) tweeter to an amp which has 100 watt power and 6 ohm Minimum Load Impedance, per channel. Note: 2 speakers will be connected to a single channel (100 Watt/6 Ohm), so total 4 speakers(2 full/2 tweeters). So as per this video, I need to add one 6ohm resistor before connecting 2 speakers in parallel. But then should I also need to match the watts? Or should I go with the lesser watt resistor, say around (30 or 50 watts per channel).
My speaker enclosure having 3 speakers ..it is mentioned 8ohms..my amp can handle 4to 16 ohms....my question is.. unfortunately the mid speakers are not working and I got a 4 ohm speakers with the same size...I didn't found any crossover in the speaker enclosure ..only one caps is hooked with tweeter...my woofer is 8 ohms..so now does it required to add additional resistance with the mid speakers....
I know this looks like a good video, but the single most important thing is that you need to consider was left out. A 4ohm speaker is not 4 ohms. An 8 ohms speaker is not 8 ohms. These are just averages. A speakers resistance is frequency based. High notes are high resistance, and low notes are low resistance.
So, if we use the examples shown in this video, can you go wrong if you simply connect a pair of 8 ohm speakers to the amp? Yes you can. Easily. If you look at the spec sheet for your speakers, you are going to see 2 numbers. A nominal impedance like what was shown in the video, and a minimum impedance. The minimum impedance is the lowest possible resistance the speaker can ever show the amp. Its a worst case scenario, and is always lower than the nominal impedance rating. If we go back to the amp in the video and we have 2 pairs of speakers, both rated at 8 ohms, but one pair drops down to 4 ohms, and the other pair drops down to 2 ohms, only the first pair that drops down to 4 ohms would work. The 2nd pair would not.
How something this fundamental was left out of the discussion, is stunning. Any textbook on basic audio will contain this information.
I'm more confused now then when I started this video.
Hmmm, it was so clear to me ... and I'm certainly not a sound engineer (far from it)! IMO, this video explains in simple terms impedance without getting too technical. The term itself, 'impedance' is by definition easy to understand: To IMPEDE or in this context of sound and speakers, 'to RESIST / RESISTANCE'. It should be expected, anticipated, that there will be some v-e-r-y BASIC math here and in fact, there is even a helpful automatic calculator shown as well as color coded wires. Can't get any easier than that.
My main speakers are Infinity RS III/B that are 4 ohm, but actually can drop down to 1.8 ohms at specific frequencies. Because of their EMIT tweeters, which I really like, I don't want to switch to a different speaker.
why isn't there anything explaining what is optimal for a damn 3ohm subwoofer?? WTF man . can someone please give me feedback other than buying specific brands that are capable what other options can be done if you only have a 2ohm to 4ohm rating good god
If the amp has two speaker inputs, i would connect only two speakers. And if it has 5.1, id connect 6. True? So wtf are ee calculating here??!?! :)
hello sir .. it is ok to add resistor to match the impedance ? because i have 800watts 4ohm speaker and i cant use my amplifier 8ohm load ....what resistor i need for my speaker to match the ampli?
In theory you could add a 4 ohm resistor, however in practice you will not find a 4 ohm resistor able to handle 800 watts of power. And if you did, the speaker would only get half the power that the amplifier supplies.
If you need to drive the speaker at its maximum, the better solution is to buy a commercial amplifier capable of working into 4 ohms or even 2 ohms.
Geoff
ok sir thanks ..
so..considering correct crossover points is a 100 watt tweeter overkill on a 100 watt channel as the cross over blocks low frequency and as such only 15-20 watts of high frequency is being allowed through that channel.
I have a 4 Ohms Speaker and a 8 Ohms High-Freq. driver and A 8Ohms 300Wmax 2-way Crossover.. Can I setup with these 2 speakers or do I have to change it to 8-8 Ohms?
What if i have 2 ohm stable amplifier?
then wire down to 2 ohms to get the most out of it. the higher the impedance the speaker the less power it will pull from the amp
one the two KEF 101 speakers has a crackle sound on one of the speakers, but I don't know if it is the tweeter or the board.
Could you assist/direct me in this matter? Thank you
my RX-318BK (impedance 8~16 ohms) has 4 speaker outputs/hookups, so does that mean i have 4 amps (so does that mean each amp has a speaker impedance of 8~16 ohms)?
Did you find answer?
I have a Klipsche ProMedia 4.1 system with subwoofer R and L front and R and L Rear. the speakers get there power from the subwoofer. If i have 2 more of the satellites can i hook them to the amp so i have 2 R and 2 L front speakers?
What are you talking all about?? Who will connect more then one speaker in one input in amplifier?? and why when there are two or more (in surround) inputs in amplifiers???? Question is simple, can be two 3.2 ohms speakers connected to two connections with 6 ohms output impedance amplifier??
I have eight ohm 75 watt four horn speakers, its connection will be in series of 4 ohm, 8 ohm and 16 ohm, send link or picture.plzzzzz help
This was great. What about a 3 speaker system? Passive L, R & Base connected to a "two" amplifier system, i.s. amp with single L&R outs.
omg this stuff makes my head spin
True that
My Amplifier speaker output is rated @ 3ohms and I've got speakers @ 6ohms and 8ohms, will it be an issue to use these speakers for this Amplifier?
Does this apply to subwoofer plate amp to I have a Klipsch bash 4.1 system but both subs are foam rot dunno how to fix so buying new subs instead can anyone answer my question?
I rather hate that your website doesn't allow for the input of dual voicecoils, only singular. While I understand that it'd be a massive undertaking to address, this fact alone renders your site useless to multitudes of visitors.
how about Watt..? can or not looping 1k watt 8ohm with 550 watt 8 ohms speaker?
So if the sub is a 4 ohm and the amp says it can do 2 ohm would the amp put out more power if I purchase a two ohm sub? The two ohm rating is higher on the back of my old school 2 channel mono amp from mtx. Or does this already drop it to 2ohm , I'm only using one sub bridged
Hello sir... How about speaker 400watt 8ohmsX2 loops to speaker 450 watt 8ohms X2.. 2 channel amplifier ... How much total impedance and watt of speaker?
Hi Bro, I have " JBL GTX-1200T 12 inch Car Audio Subwoofer Tube 4 OHM (1200 Watt)--->Power Handling RMS is 300 Watts" Shall i choose "SONY XM-N502 2-Channel Stereo Amplifier --> It's Power @4 OHM--->175 W x 1 (BTL)"... whether it is a best match ? If not-----kindly share your suggestions to choose the BEST AMPLIFIER ......
The way my Uncle Ned explained it was a cow eat hay, then u milk 🥛 the cow and have milk, then you use the milk to make a cake 🎂, then u put icing 😉 on the cake 🎂 and then u eat the cake. Think of the candles 🕯 on the cake as Dolby Atmos
Hello. I have car radio. Radio has 50w 4ohm . and I want to connect two speakers in one channel. 75w 8ohm. And another speaker has 50w 4ohm. So how I can connect. Series or parallel?
I HAVE TWO SPEAKER ,ONE IS 18 INCH 1500 WATT AND ANOTHER IS 12 INCH 500 WATT,CAN I CONNECT IT IN PARALLEL CONDITION ?IS IT RELIABLE TO USE THIS TWO SPEAKER IN PARALLEL IN 2200WATT AT 4 OHM POWER AMPLIFIER?
.... ist ok beim "nackten" Lautsprecher. Beim Anschluss von Mehrweg Boxen passt die parallele Schaltung auch noch, aber bei der Serienschaltung muss berücksichtigt werden, dass nur absolut baugleiche Baugleiche LS - Boxen den Sound nicht verändern. Spannend wird es bei verschiedenen Typen! DIE FREQUENZWEICHEN ergeben zufällig einen guten oder miesen Sound bei Serienschaltung. Viel Spaß beim Experimentieren!
In the manual for the Sansui 5000 is the following: Caution: Never attempt to use two or three 8 ohm speaker systems at the same time. For use with three speaker systems, the impedance must be more than 8 ohms each. For use with two speaker systems (A+B or A+C) the combined impedance of the systems must be more than 8 ohms.
I am not understanding exactly what this means. My plan was to connect 2 pairs of Sansui SP-2000 speakers, which are 8 ohm speakers, but based on this warning I don't think I can now do this? Can you advise me?
Thanks
* *Mike Cook,* * You posted your comment 4 years ago.
*How did this turn out for you?*
I have 6 ohm home stereo speakers and afraid to hook them to my 8 ohm amp.
wish I would known this before running my amp to 1 ohm. it started smoking
Same for me hahaha
Please tell me that my amplifier is of 4-16 ohms please tell me this principle only applies on one channel 4-16 ohms or both channel impedance total should be 4-16 ohms or one channel for 4-16 ohms and other for also 4-16 ohms
Hi, I have a vintage amp and my output is 16 ohms. I have a single woofer ( 16 ohm) and Tweeter (16 ohm) hooked up to the amp through a cross-over.
My tweeter is toast so I bought a new Tweeter from Pyle ( PH-391) but it is only 8 ohms. How do I wire this into my set up.
My cross-over has a 15 ohm and 33 ohm resistor along with a 3.0 uf Capacitor.
Do these new tweeters even need a cross-over ..I am confused. Any help appreciated.
The general formula is quite simple for parallel, just show. Prod(R_i)/sum(R_i)
whats the name o the narrator? sweet voice...
She doesn't speak well, speaks distortedly, so totally not understandable,....she deserves punishment for speaking this way
My rating on my amplifier is
RMS Power at 4-Ohms: 450W x 1
RMS Power at 2-Ohms: 750W x 1
RMS Power at 1-Ohm: 1000W x 1
And I want 2 subwoofers what’s the max rms I can get between 4-ohm or 2-ohm or even 1-ohm
I have a Memphis prx1.1000 mono block class D
Please help
Sup bro, you want to go 1 ohm if you'd like to pop some windows, getting at 1 ohm you'll need 2x 2 ohm Subs connected in parallel, (both "+" together @ + on amp and same with the " - " on both)
That's if you are going to get SVC subs, on DVC subs it'll be a different approach you'll have to take
The first statement of the video is incorrect. An amplifier has 2 SEPARATE amps.😂🥴🤣
I want to hook up 25W 3" 32ohm speakers to a 1050W 2 ohm amp. How many speakers do I need to buy? How much speaker wire and what gauge wire should I get? Should I use a bandpass enclosure for the ones I use as subs? How do I calculate the frequency the box I need to build will need to be tuned to? XD
:technically will work but is really practical: ?,,, i often use series parallel and star wiring ,,, that'll pop the brain when dealing with many pan tilt cameras. currently on my big old pioneer 2 channel amp i have on each channel 2 8 ohm and 1 six ohm just need a meter and matching pairs. i wouldn't mix many different brands, ohm can be an issue but your getting into power draw, as well. i find speaker selection switches to be very cheaply made,, so if your using quality wire don"t interrupt that with some cheap brass coated thing. are we concerned with resistor ratings,, watts,, tolerances so on?
Impedance is not simple resistance - although it can be treated as such to simplify the discussion. But then this is a simplified presentation, eh?
Sir I have two 6 ohm 5watt speakers and 2 8 ohm 10 watt speakers.and I have a amplifier of 15w+15w. Pam8610 board how to connect speakers in right manner. I have audio crack in high volumes. Sir please tell me how to Slove this problem
If I have 2 speaker cabinets that are 4x12 and to match the cabinets at 8 ohms for the setting, what should I set my 50W Marshall plexi at your play thru both cabs safely? It has a 4 ohm 8ohm and 16ohm setting.... even with the video I’m totally lost
Well, but what can I do with different ohms and watts collected speakers to built à Powerful enclosure ?
I have 4........speaker 120 words and 8ohoms...pls help me what amplifier can I use..?
i want to put 6 speaker 8ohm each ,to a taramp 3000k rms amp 1ohm. the solutios is pararel connection wiring ?
You can not surpasse 4-16 Ohms for one channel Or for each channel?
For exemple: Ampli 2 channels, and each has 16 ohms speakers, will it work? Or it will be addited like 32 Ohms?