did the step up converter actually have an effect? im planning to use this in my car and i need a step up converter for 24 v from the battery. Should i use a 10 or 15 A fuse from the battery? thanks.
I was looking at some of these little boards and was really impressed. My problem lies in the fact that some of them are rated from anywhere from 19 to 24 volts up to 15 amps. I didn't know most of them could run off 12 volts? But still if you were going to create a little shelf speaker something cool with one of these chips where you supposed to find a 24 volt power supply with 15 amps? A laptop charger? They're not cheap or small.. It's pretty much nonexistent. I mean you can find them but it ends up costing Twice as much as the board. any suggestions or tips would be greatly appreciated.
They are incredible. I tested this year a mono amplifier TPA3118. But what I also see is that all the TPA versions has 10% distortion on high output. I put also a heatsink on the chips! Thank you for the test!
I love these 3117 amps. The key to power is definitely voltage backed up by 5 or so amps. Increases in voltage above 20V will significantly increase the power output. They can be pushed past 25V without fear of letting the smoke out,it will just drop out into a temp self protect. The only caveat to that would be the capacitor rating make sure it has 35V vs 25V caps..I had mine run reliably at 28.5 V with a 2ohm load outputting 150W from just one bridged 3117, the same load at 19V at the same volume same sine wave frequency and the power output drops to 50W. Incredible how far amp tech has come. This is just the beginning, I expect to see affordable, more powerful audio amp ICs in the near future.
The problem with MOST of these cheaper 2.1 amps is the subwoofer crossover point. It would really be helpful to test and review the actual crossover point of the amp. Having a subwoofer crossing at 120 to 150 Hz is really much too high... that's where a lot of these cheaper 2.1 amps are crossing at. You will get a lot of unwanted outpout in the higher bass frequencies which will give away the subwoofer location, as well as muddy up the sound, which you don't want. Pretty cool review, though. I agree, the front input location is kind of wacky. I'd likely remove the RCS's and change the input connections so the board would sit flush with it's enclosure.
Thomas Zarbo How is 150 Hz too high? I thought the common upper crossover frequency for woofers was around 300-600 Hz? Or are you referring to the lower-bound frequency?
Its because those amplifiers are most designed for DIY portable proyects where normally what most people want is sound, and 150 hz sounds loudly than 40 hz on a portable speaker with subwoofer. For quality audio use a class a-b amp
I used one of these budget amps - Dayton Audio KAB-250 (tpa3116 chip) with bluetooth - and integrated it into a 1941 Crosley 25A radio. Works amazingly well and sounds good.
Gillege I used a 19 Volt power supply. On Parts Express it is model #0335A1965. I bought it when it was $35. It's currently $10. I metered the output wires for positive and negative, cut off the 5.5mm plug, and wired the output to the harness on the amplifier. I also have the power supply powering two 19 volt lights on the 1941 radio. I don't have any humming.
Even this old video... I must agree with you, i almost got all those chinese amp, and Yeaah THIS AMP BEST SOUND QUALITY at that price.. Nice review bro 👍
I use these boards for pretty much all my portable builds, with around 2x50W and 1x 100W on 24v it's really more than enough. Crossovers on the 2x 50W and use of tweeters is really nice. Volume-wise... don't get me started about it, i bet you could piss of the whole block with it if you use it outside.
Check the virtal Ground of the OPAmps on the Board. All mine had to be shiftet from around 1V to 1/2VCC (5VRail->2.5V) I did it by changing a little resistor in the voltage divider that feeds the cap of the 2.5V rail. Unsymetrical Clipping was gone. Result: 2X undistorted Power. It seems a lot of these chinese boards have this issue.
some of these boards have input caps that are made for tablet/phone output level, wich may be a bit sensitive if you use line level or anything higher then a phone output. (that might cause the distortion)
Frietpan don't need to be talking like that we all need the audio it is why we have ears be terrible to waste hearing an bs audio but n the truth all of it is a waste to a point but if it is I enjoy the money I wasted
I was looking at some of these little boards and was really impressed. My problem lies in the fact that some of them are rated from anywhere from 19 to 24 volts up to 15 amps. I didn't know most of them could run off 12 volts? But still if you were going to create a little shelf speaker something cool with one of these chips where you supposed to find a 24 volt power supply with 15 amps? A laptop charger? They're not cheap or small.. It's pretty much nonexistent. I mean you can find them but it ends up costing Twice as much as the board. any suggestions or tips would be greatly appreciated.
They are Limited to 12,6V RMS !!! Tn the Datasheet (7.3.4 PLIMIT Operation) you can see it is possibile to set it at 17,9V so yes this amp goes way over 11 ;)
I have TPA3116D2 100W Mono Amp its so awesome... I got 75W woofer on it and woofer is bottoming out.But amp was increased only on half volume! in closed box... i love it
I have a power 650 in mint condition with the 4" fan, the original box, and the wires that come with it. It has only been tested never finished the system, I was wondering if you are interested in purchasing it
If ur impressed with that amp board try the new tpa3255 amp board rated to do 150rms x2 at 8ohms can pick it up on ebay id be interested in seeing what it really does aswell
+supra750 they are fun and very inexpensive amps. Just pick up one of those voltage boosters too unless you have a way to provide 24 volts. Amp really shines at 24 volts
Thinking about putting two 12v battery's in series and run them in a boom box or cooler. With the low amp draw bet they would play a while with some good size battery's.
+123Toid according to specs they are not needed if running front channels at 8 ohms and sub at 4 ohms. Also notice temps when I measured after music...not bad at all. Other temps shown were after tests with resistors...much more torture on the amp
Awesome, thanks for the celsius values ! Could add SANWU to the title, should get some more traffic your way. 5W on idle is still quuuuite a lot, given the datasheet claims something below 100mA - are the inductors by any chance getting toasty (on idle) ?
+Darieee the idle current I measured was 190mA. You can disregard the "power" and "wattage" shown on the volt/ammeter. Thanks for the tip about the title, will do 👌
Too bad can't get one now. I would like to see the difference between my tpa3255 ×2 2.2 board I built for $20. At 42v switch I'm at 240 on all 4 channels!
Thanks for all of the videos BigD! unfortunately I'm limited to 12v in my mobile Bluetooth design. Have you tested a 2.1 mini amp that's designed for lower operating voltage?
Not sure what you are referring to? I use a line level signal from a high end car stereo CD tuner which I’ve tested to show extremely low THD as my source. Maybe you noticed something else?
Please add a noise test for all Chinese amps you're testing... Power is something but those little digital amp usually put A LOT of background noise even when nothing is connected to it.
+Greg S it seems to adjust volume. I'll need to try an analyzer to check the frequency. My bad for forgetting to add this, very important in a full review
Thanks BigDWiz. On the webpage from your video ua-cam.com/video/d4syuj1UWBU/v-deo.html it says in the description of the 3rd knob: Bass Frequency which might suggest that is a adjustable crossover for the bass output. A bit dissapointing that it is not though.
great vid.. bro.. can you recomend a unit like this. the amp on one of my pioneer sdj80x die and im looking into throwing one of these chines unit in there, the power units are good its just the amp board that went bad. since these monitors are biamp, i was looking at some unit of 150+ 50. thanks..
Hi Williston. I head you say while testing the sub Chanel at 40hz that the amp doesn't have much reserve. Did you refere to the capacitor? If so could I add a few more and improve on that? Thank you.
Can anyone give and honest recommendation about amplifier boards? Has anyone actually seen these things in a nice sounding and reliable car audio systems? Can these things actually be used in a respectable car audio system? At first impression they seem like a cheep, cool solution if someone is willing to do a little tinkering and experimenting. If possible what ones are the best for mids and highs and lows? Thanks
+Jon Doe it is in the plans, actually bought an extra to use in my cart (where super caps reside), but I decided to use it in my Ranger. I bought a Kenwood Excelon X998 to try out and maybe use it as my test unit. We'll see how it performs first.
Are there any of these little cheap board amps that have signal sensing? I'de like to be able to install one in a passive speaker to turn it into a powered speaker on the cheap that I can connect a chromecast audio too and have the amp turn itself off and on automatically whenever it senses an audio signal from the chromecast (I currently use a smart plug on each ones power brick but that requires the extra step of turning it off and on each time). Is there something about signal sensing circuits that is just inherently expensive or difficult to implement properly? The audiosource100 amp is the cheapest thing I can find with signal sensing but they don't really lend themselves to what I want to do and they kind of defeat the goal of a cheap diy powered speaker.
Love your videos. Very nice to know about them before you buy. The thing with those chinese class d boards, larger the chokes are they'll sound better and far more less noisier. And the caps are another thing remove those fake caps and put nichicon/rubycon 50v caps and you're good to go.
+JohnAudioTech I found the sample project for making the resistor bank a while back. I also have a bunch of wirewound resistors in an old PC case I used before getting the Amp Dyno
Hope someone can help, I'm looking to make a cheap ish and good enough sounding 2.1 speaker bar / sub for my house. So a few questions. .Where should I look for drivers? .Can I use car audio drivers? .Would these little amps be suitable for car audio drivers? Any help would be greatly appreciated and any links to sites or even dedicated Facebook groups would be a bonus, thanks.
Big D I've been scouring the interwebs trying to find a 2.1 board for a super boombox. I've found one that states it'll do the kind of power I want but can't find any reviews. It's the sure electronics AA-AB33511. Had any experience with it?
BigDWiz broo there's some sick rc audio setup with those chips but no one ever took the time to really test them out I o my got to test db but no power rating
like I heard electronics can be scaled way down or scaled way up it's just the technology of the materials to catch up,like battery power ,certain metal's,ceramics.we can't make every thing out of gold or can we I seen a quantum chip it looks like it is just gold with little streets of black to separate the little construction's of gold,platinum,silver and etc. I wonder? cheers to you. (I seen chip on internet,only).
Seen a lot of your dyi small eBay amps and dyno test and there great keep it up and was also wondering if you would do one on the eBay China mini sub woofer amp plate with two tda 3118 chip. It would be great its model sw-501 sub amp plate 2.1👍
Yes, copper heatsinks that just clear with taller fins, use that white silicone heat conductive compound that hardens and non electrically conductive, way to go..
+BigDWiz I wouldn't worry about the heatsinks. They may help some but the TPA3118d2 is designed with a PowerPad that is soldered to the pcb ground plane. The copper in the pcb is the heatsink and that array of via holes under each TPA3118d2 conducts heat through the board to the backside layer of copper as well. So it's important that you mount the board with the standoffs so there is clearance / air movement underneath. You can read more about PowerPad technology here: www.ti.com/lit/an/slma002g/slma002g.pdf If you need to run more power the TPA3116d2 (same family) is designed to use a top mounted heatsink.
The only significant output power difference I saw in this video was comparing a 12.5v and 25v power source. There is no need for an additional heatsink - its designed not to need one if the pcb is properly designed (it appears to be - although I think there should be more thermal vias) and it's mounted with adequate airspace around it and/or a little airflow across it. TI rates the TPA3118 to 85C (185F). If it gets beyond that, there is overtemp protection: "Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting"
+Soundwerks dallas I'll have to admit I haven't tested them all yet, but I REALLY like this one. Been using it a ton, provides plenty of power for a garage system using bookshelf speakers and a small subwoofer
Soundwerks dallas I bought a few and my favorite so far is the TDA7498. it's one of the more expensive ones but definitely worth the price. I got mine for $27.98 and free shipping
+Booradley Bojangles I've noticed the amps wanting 32 volts don't seem to be as powerful as the "smaller chip" amps wanting 24 volts. We'll find out in future vids
I hooked up a 1000watt boss mono block in my school backpack with 2 Polk audio t15 and a 12v sealed lead acid and it only costed $100 it sounded so clean and has the bass louder and cleaner than a stock car sounds stem I regret selling it. I messed with the entire school it was so loud
BigDWiz That's why I started looking at these little amps. I have a closet with a few passive subwoofers since I've accumulated a bunch of decommissioned HTIB gear over the years and wanted to do something with them. That's actually what led me to this channel. Think I may have a winner for a couple bedroom or desk stereo setups with this one.
Nevermind. Just finished the video and saw you posted the temps. I always type questions as the video plays, and then feel like an ass after the video completes.
I THINK YOU ARE THE MAN TO ASK FOR ADVICE. I HAVE A SET OF 4 OHMS BOOKSHELF SPEAKERS RATED 175 WATTS . I BEEN SEARCHING FOR A GOOD 4 ohms mini amp to drive my speakers. So far.....I can not find anything with a great stereo chip on board. Could you help me getting the best mini amp for stereo set up. I dont like T amps.
I'll update video description with songs used, all were from the UA-cam Audio library. Thanks!
BigDWiz I bought a TPA3116D2 (100x2) around $6.78!!
BigDWiz would you be sell some of them i want to hook up my lil girls power wheel and she doesnt need alot of power
BigDWiz awesome..to do a custom diy bookshelf and a sub for a computer 2.1 stereo!
did the step up converter actually have an effect?
im planning to use this in my car and i need a step up converter for 24 v from the battery. Should i use a 10 or 15 A fuse from the battery?
thanks.
I was looking at some of these little boards and was really impressed. My problem lies in the fact that some of them are rated from anywhere from 19 to 24 volts up to 15 amps. I didn't know most of them could run off 12 volts? But still if you were going to create a little shelf speaker something cool with one of these chips where you supposed to find a 24 volt power supply with 15 amps? A laptop charger? They're not cheap or small.. It's pretty much nonexistent. I mean you can find them but it ends up costing Twice as much as the board. any suggestions or tips would be greatly appreciated.
You are the only one who did a review of this amplifier.Thank you.
Иван Иванов trying to get him to do the tpa3255 chip amp board
@@haroldpowell i sent him a message too. He should do a test with the tpa3255 2.1 chip.
They are incredible. I tested this year a mono amplifier TPA3118. But what I also see is that all the TPA versions has 10% distortion on high output. I put also a heatsink on the chips! Thank you for the test!
I like these videos of your budget amps. Gives me cool ideas for small projects
Good work wiz
+jacob bennett thanks man. They are amazingly inexpensive and great sound as well
BigDWiz I have a shit load of old amps
Another great video; thanks for continuing with the tests! These little amps will be great for bookshelf systems.
+Aaron McCann thanks for watching and commenting
Those little Amp on a chip deals are pretty darn impressive!
This was cool. Makes me wanna blow money on one - something I absolutely do not need.
Me too. But i orderet it 5 minutes ago. And a 10 inch 100 watt subwoofer. 😅
That's still pretty damn impressive for a $12 amp...lol
Just bought this board yesterday and was really concern about its quality ... Thanks for your video!!!
Thanks for watching and commenting!
I love these 3117 amps. The key to power is definitely voltage backed up by 5 or so amps. Increases in voltage above 20V will significantly increase the power output. They can be pushed past 25V without fear of letting the smoke out,it will just drop out into a temp self protect. The only caveat to that would be the capacitor rating make sure it has 35V vs 25V caps..I had mine run reliably at 28.5 V with a 2ohm load outputting 150W from just one bridged 3117, the same load at 19V at the same volume same sine wave frequency and the power output drops to 50W. Incredible how far amp tech has come. This is just the beginning, I expect to see affordable, more powerful audio amp ICs in the near future.
The problem with MOST of these cheaper 2.1 amps is the subwoofer crossover point. It would really be helpful to test and review the actual crossover point of the amp. Having a subwoofer crossing at 120 to 150 Hz is really much too high... that's where a lot of these cheaper 2.1 amps are crossing at. You will get a lot of unwanted outpout in the higher bass frequencies which will give away the subwoofer location, as well as muddy up the sound, which you don't want.
Pretty cool review, though.
I agree, the front input location is kind of wacky. I'd likely remove the RCS's and change the input connections so the board would sit flush with it's enclosure.
Thomas Zarbo How is 150 Hz too high? I thought the common upper crossover frequency for woofers was around 300-600 Hz? Or are you referring to the lower-bound frequency?
Its because those amplifiers are most designed for DIY portable proyects where normally what most people want is sound, and 150 hz sounds loudly than 40 hz on a portable speaker with subwoofer. For quality audio use a class a-b amp
I used one of these budget amps - Dayton Audio KAB-250 (tpa3116 chip) with bluetooth - and integrated it into a 1941 Crosley 25A radio. Works amazingly well and sounds good.
+wishboneattack sounds like an awesome project 👍
@ which voltage did you put the amp, cause mine makes weird background noise at 15V and 2.5A.
Gillege I used a 19 Volt power supply. On Parts Express it is model #0335A1965. I bought it when it was $35. It's currently $10. I metered the output wires for positive and negative, cut off the 5.5mm plug, and wired the output to the harness on the amplifier. I also have the power supply powering two 19 volt lights on the 1941 radio. I don't have any humming.
Great tip, thanks 👍
I appreciate your diligence mate thanks so much
thats actually a pretty cool amp. Id love to score one for a backyard setup. Thanks for uploading this and for your time.
It’s an amazing value honestly
Awesome review! Thanks! The main problem in these Chinese amps is hiss at low volumes. It would be awesome if you could address this in future videos!
Most awaited review!
Even this old video... I must agree with you, i almost got all those chinese amp, and Yeaah THIS AMP BEST SOUND QUALITY at that price..
Nice review bro 👍
I use these boards for pretty much all my portable builds, with around 2x50W and 1x 100W on 24v it's really more than enough. Crossovers on the 2x 50W and use of tweeters is really nice. Volume-wise... don't get me started about it, i bet you could piss of the whole block with it if you use it outside.
Check the virtal Ground of the OPAmps on the Board. All mine had to be shiftet from around 1V to 1/2VCC (5VRail->2.5V) I did it by changing a little resistor in the voltage divider that feeds the cap of the 2.5V rail. Unsymetrical Clipping was gone. Result: 2X undistorted Power. It seems a lot of these chinese boards have this issue.
Nice! It did help. Excellent video as always.
+hifivega thx bud 👍
How to connect power supply..where is the positive and negative..thanks
Buzz & Woody disco video was the best! I like these little inexpensive amps. I'm thinking it'll be fine for a hobby bench or the garage.
+u9Nails yes, or a portable sound system. I still can't believe how cheap they are 🤷♂️
some of these boards have input caps that are made for tablet/phone output level, wich may be a bit sensitive if you use line level or anything higher then a phone output. (that might cause the distortion)
Frietpan don't need to be talking like that we all need the audio it is why we have ears be terrible to waste hearing an bs audio but n the truth all of it is a waste to a point but if it is I enjoy the money I wasted
im not sure if i understand what you are on about.
I don't think he knows himself.
i think they are crossed at 150 hz because upper frequencies are directional , while lower are not.
Love it. another great amp dyno run
+volvo09 thanks! 🤙
3:38 Looks perfect for an intro
Sure does, good eyes 👀
I was looking at some of these little boards and was really impressed. My problem lies in the fact that some of them are rated from anywhere from 19 to 24 volts up to 15 amps. I didn't know most of them could run off 12 volts? But still if you were going to create a little shelf speaker something cool with one of these chips where you supposed to find a 24 volt power supply with 15 amps? A laptop charger? They're not cheap or small.. It's pretty much nonexistent. I mean you can find them but it ends up costing Twice as much as the board. any suggestions or tips would be greatly appreciated.
Great video Dereck, I would love to see the process of bridging this amplifier for single Chanel/mono. Would you consider this for a future video?
love the video!!! I have a 2 channel with bluetooth and the sound is very impressive with 2 kicker 5.25 speakers
+Harmon Ford for less than 100 bucks, you can build your own portable system with MUCH higher quality than the commercial ones at this price point.
BigDWiz I already sold 2 boxes with that set up. no complaints so far
I got the cost down to like 80 or 90 bucks
+Harmon Ford awesome 🤘
They are Limited to 12,6V RMS !!!
Tn the Datasheet (7.3.4 PLIMIT Operation) you can see it is possibile to set it at 17,9V so yes this amp goes way over 11 ;)
a awesome little amp,sweet deal! Great video
+Derek S. Richardson thanks D, great name also 😝
I have TPA3116D2 100W Mono Amp its so awesome... I got 75W woofer on it and woofer is bottoming out.But amp was increased only on half volume! in closed box... i love it
Awesome!
An excellent review of the amp. Than you.
I have a power 650 in mint condition with the 4" fan, the original box, and the wires that come with it. It has only been tested never finished the system, I was wondering if you are interested in purchasing it
+7,673,201 views send me an email BigDWiz (at) gmail dot com. Please send pics and asking price
If ur impressed with that amp board try the new tpa3255 amp board rated to do 150rms x2 at 8ohms can pick it up on ebay id be interested in seeing what it really does aswell
Great vid D!! Sounds great I'm gunna have to get some to play with.
+supra750 they are fun and very inexpensive amps. Just pick up one of those voltage boosters too unless you have a way to provide 24 volts. Amp really shines at 24 volts
Thinking about putting two 12v battery's in series and run them in a boom box or cooler. With the low amp draw bet they would play a while with some good size battery's.
Hi, thanks for the video. Can you please tell us whether the subwoofer channel has a Low Pass Filter? And if so, at which frequency? Thanks.
Nice Setup!
Thank you so much for the review, I am looking for a decent board amp for a sound bar project 👌😁
Yeah this one is nice
Watts of subwoofer ?
that is crazy that there's no heat sinks. Luckily can pick him up from pretty cheap, but still.
+123Toid according to specs they are not needed if running front channels at 8 ohms and sub at 4 ohms. Also notice temps when I measured after music...not bad at all. Other temps shown were after tests with resistors...much more torture on the amp
Thanks BigDWiz, I appreciate the feedback
Awesome, thanks for the celsius values ! Could add SANWU to the title, should get some more traffic your way.
5W on idle is still quuuuite a lot, given the datasheet claims something below 100mA - are the inductors by any chance getting toasty (on idle) ?
+Darieee the idle current I measured was 190mA. You can disregard the "power" and "wattage" shown on the volt/ammeter. Thanks for the tip about the title, will do 👌
What about the YL2020?
Can we use this for car subwoofer driver?
Hi sir
How do i determine the positive and negative probes on the adaptor socket ?
Thanks
Too bad can't get one now. I would like to see the difference between my tpa3255 ×2 2.2 board I built for $20. At 42v switch I'm at 240 on all 4 channels!
Thanks for all of the videos BigD! unfortunately I'm limited to 12v in my mobile Bluetooth design. Have you tested a 2.1 mini amp that's designed for lower operating voltage?
+Whit Hutchinson this one works with 12 volts also, just provides less power output. At the end, I show both 12 and 24 volt results
Shouldn't you use a music player as a line out or signal out instead of a amplified signal to another amp?
Not sure what you are referring to? I use a line level signal from a high end car stereo CD tuner which I’ve tested to show extremely low THD as my source. Maybe you noticed something else?
Are you running a powered signal from the car RCA amp output that would normally go to speaker, but to the mini amp?
Please add a noise test for all Chinese amps you're testing... Power is something but those little digital amp usually put A LOT of background noise even when nothing is connected to it.
Fmod x-over FTW
So does this particular amp have a lot background noise when idle ?
Wich power supply should I buy? What voltage and amps?
Is the third knob really a sub freqency adjustable filter? What are the frequencies to set? Or is just sub channel volume?
+Greg S it seems to adjust volume. I'll need to try an analyzer to check the frequency. My bad for forgetting to add this, very important in a full review
Thanks BigDWiz. On the webpage from your video ua-cam.com/video/d4syuj1UWBU/v-deo.html it says in the description of the 3rd knob: Bass Frequency which might suggest that is a adjustable crossover for the bass output. A bit dissapointing that it is not though.
nice man..like always love your videos! 🔊🎶👍😄
+Edrick Mendez thanks for watching, commenting and keeping the positive vibe going 😬
BigDWiz no problem and thanks..keep the good audio videos coming!!
More Chinese Amplifier pls... same like this or with transistor 2SC5200
how long will something like this last, those chips with no heat sink seem as if they would not last long at all.
i have a tpa3118 which is 60w mono and at full volume at 6ohms it doesn't even get hot
Stick a heatsink on it if you are worried about heat. Or buy one with heatsinks fitted allready.
Not that complicated ;)
Did you check the inductor temperature during your 2 ohm and 4 ohm tests?
cause" He's outta There"...lol. great vids. keep em coming...
+Scott Miller 😬🤘
BigDWiz lol
great vid.. bro.. can you recomend a unit like this. the amp on one of my pioneer sdj80x die and im looking into throwing one of these chines unit in there, the power units are good its just the amp board that went bad. since these monitors are biamp, i was looking at some unit of 150+ 50. thanks..
Hi Williston. I head you say while testing the sub Chanel at 40hz that the amp doesn't have much reserve. Did you refere to the capacitor? If so could I add a few more and improve on that? Thank you.
No dynamic reserve power. Based on the design architecture
@@wal OH boy... I'm clueless. I don't want to take much of you time with my lack of general knowledge. But thank you man.
Would you consider testing out some tas5630 boards ?
You can adjust the crossover frequency, right? Great video btw! :)
Can anyone give and honest recommendation about amplifier boards? Has anyone actually seen these things in a nice sounding and reliable car audio systems? Can these things actually be used in a respectable car audio system? At first impression they seem like a cheep, cool solution if someone is willing to do a little tinkering and experimenting. If possible what ones are the best for mids and highs and lows? Thanks
Most of these need higher voltage than car battery can provide (24-36V). Without a voltage booster these wouldn’t work well in a car
Just curious. Why dont you use the 80prs for dyno runs?
+Jon Doe it is in the plans, actually bought an extra to use in my cart (where super caps reside), but I decided to use it in my Ranger. I bought a Kenwood Excelon X998 to try out and maybe use it as my test unit. We'll see how it performs first.
how do you give power to this board
+Guru battery with voltage booster or 19/24 volt power supply
Buz light-year was jamming. Where did you get that temperature reader?
Mister Hat lol. thanks
Why didn't you finish reviewing these?
Priorities, sorry. I have at least a dozen more to try out. I’ll get to them eventually
Are there any of these little cheap board amps that have signal sensing? I'de like to be able to install one in a passive speaker to turn it into a powered speaker on the cheap that I can connect a chromecast audio too and have the amp turn itself off and on automatically whenever it senses an audio signal from the chromecast (I currently use a smart plug on each ones power brick but that requires the extra step of turning it off and on each time). Is there something about signal sensing circuits that is just inherently expensive or difficult to implement properly? The audiosource100 amp is the cheapest thing I can find with signal sensing but they don't really lend themselves to what I want to do and they kind of defeat the goal of a cheap diy powered speaker.
These consume very little power at idle. I’m not aware of any using signal sensing
You are beating the crap out that subwoofer .
Pretty shitty enclosure since it vibrates with the woofer. Shouldn't do that.
Well, most car audio freaks are also using 12 inch+ beasts that will vibrate their enclosure heck of a lot more.
yeah but they dont have a clue what sound quality is!
may be a silly question but how do you hook up the power and ground to the amp?
That's what the round plug is. Designed for a wall socket with an ac/dc converter plug.
+fat catt 39 barrel connector with center positive connector. 5.5mm x 2.1mm if I recall correctly
fat catt 39 , you have to buy a separate 120 volt power supply I'm assuming, I saw the plug on the side of the board
Hey BigD do you think it's still ok to use the voltage booster you tried to use in the beginning? Did you try it?
+rdiaz78065 yes, voltage booster is good
Love your videos. Very nice to know about them before you buy. The thing with those chinese class d boards, larger the chokes are they'll sound better and far more less noisier. And the caps are another thing remove those fake caps and put nichicon/rubycon 50v caps and you're good to go.
+Rushan Fernando after I test them all, I'll do some videos about upgrading them
BigDWiz Cheers!!
@BigDWiz, you think this amp would be suitable for a 2.1 setup with speakers rated 3 ohms 1 kHz, 10% THD & Sub rated 3 ohms 100 Hz, 10% THD?
Yessire bobby!
Do you think putting larger caps on this amp would help with the clipping?
+Neal Gandy no
Nice load box. I need to make one.
I assume class D amps need to dissipate around 10% of their output power.
+JohnAudioTech I found the sample project for making the resistor bank a while back. I also have a bunch of wirewound resistors in an old PC case I used before getting the Amp Dyno
Hope someone can help, I'm looking to make a cheap ish and good enough sounding 2.1 speaker bar / sub for my house.
So a few questions.
.Where should I look for drivers?
.Can I use car audio drivers?
.Would these little amps be suitable for car audio drivers?
Any help would be greatly appreciated and any links to sites or even dedicated Facebook groups would be a bonus, thanks.
Big D I've been scouring the interwebs trying to find a 2.1 board for a super boombox. I've found one that states it'll do the kind of power I want but can't find any reviews. It's the sure electronics AA-AB33511. Had any experience with it?
Anthony Fejeran I found the product manual. Seems to be powerful. They also have a 100wX6.
Richard Vanwinkle Thank you sir.
if I cool this board, could I run 2 ohm sub?
Yes, it handles a 2 ohm sub without issue
Can it handle 2ohm on the front channels
I want u to test out the tda7498
+Chevil Gould coming in about a week 👍
this is soo good info for rc community
+yul merced never thought of that use....Boom RC's 😊
BigDWiz broo there's some sick rc audio setup with those chips but no one ever took the time to really test them out I o my got to test db but no power rating
+yul merced can you forward me a video?
i send you a link on your facebook
Any good amp witch bluetooth on 5v?
like I heard electronics can be scaled way down or scaled way up it's just the technology of the materials to catch up,like battery power ,certain metal's,ceramics.we can't make every thing out of gold or can we I seen a quantum chip it looks like it is just gold with little streets of black to separate the little construction's of gold,platinum,silver and etc. I wonder? cheers to you. (I seen chip on internet,only).
How was the bass quality, is that "x" class?
+HIGHER LEVEL CHANNEL bass was nicely controlled and provided plenty of power for my test 6.5" sub
Seen a lot of your dyi small eBay amps and dyno test and there great keep it up and was also wondering if you would do one on the eBay China mini sub woofer amp plate with two tda 3118 chip. It would be great its model sw-501 sub amp plate 2.1👍
Song name。？
If you can find a larger heatsink I'm sure it would be better
+MrBrymstond I'm sure it would help too, not with additional power, but keeping the chips cooler
Yes, copper heatsinks that just clear with taller fins, use that white silicone heat conductive compound that hardens and non electrically conductive, way to go..
+BigDWiz I wouldn't worry about the heatsinks. They may help some but the TPA3118d2 is designed with a PowerPad that is soldered to the pcb ground plane. The copper in the pcb is the heatsink and that array of via holes under each TPA3118d2 conducts heat through the board to the backside layer of copper as well. So it's important that you mount the board with the standoffs so there is clearance / air movement underneath. You can read more about PowerPad technology here:
www.ti.com/lit/an/slma002g/slma002g.pdf
If you need to run more power the TPA3116d2 (same family) is designed to use a top mounted heatsink.
If you noticed, it got better wattage with the small ones he used
The only significant output power difference I saw in this video was comparing a 12.5v and 25v power source. There is no need for an additional heatsink - its designed not to need one if the pcb is properly designed (it appears to be - although I think there should be more thermal vias) and it's mounted with adequate airspace around it and/or a little airflow across it. TI rates the TPA3118 to 85C (185F). If it gets beyond that, there is overtemp protection: "Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, DC-Detect, and Short Circuit With Error Reporting"
I think those chips are fake. I Googled for TPA3118 chip and returned with some pictures showing the chip with a more clear writings.
+Hatsune Miku I agree
hey big d what is best mini 3 channel amp you've tested so far
+Soundwerks dallas I'll have to admit I haven't tested them all yet, but I REALLY like this one. Been using it a ton, provides plenty of power for a garage system using bookshelf speakers and a small subwoofer
Soundwerks dallas I bought a few and my favorite so far is the TDA7498. it's one of the more expensive ones but definitely worth the price. I got mine for $27.98 and free shipping
I love my TDA7498, I'm gonna run the sub at 4ohms and see what she does
+Booradley Bojangles I've noticed the amps wanting 32 volts don't seem to be as powerful as the "smaller chip" amps wanting 24 volts. We'll find out in future vids
Wow little size huge power
I hooked up a 1000watt boss mono block in my school backpack with 2 Polk audio t15 and a 12v sealed lead acid and it only costed $100 it sounded so clean and has the bass louder and cleaner than a stock car sounds stem I regret selling it. I messed with the entire school it was so loud
boss audio never had rated power.. is like 25% of rated power is RMS
Still love my lepai lp 2020a+
+Ryan Lin its a great little amp, but having the extra channel for subs is really helpful
BigDWiz
That's why I started looking at these little amps. I have a closet with a few passive subwoofers since I've accumulated a bunch of decommissioned HTIB gear over the years and wanted to do something with them. That's actually what led me to this channel.
Think I may have a winner for a couple bedroom or desk stereo setups with this one.
I wonder if you could Master/Slave These chips together to get some crazy output for Home Theater or even car audio.....You should try it
Trogdor 4803 , not according to Abraham Lincoln, no more slave anything bud, lol.
THANKS
Did the unit get noticeably hot after the 4ohm testing?
Nevermind. Just finished the video and saw you posted the temps. I always type questions as the video plays, and then feel like an ass after the video completes.
MeatPopsycle , did you not watch the video or what ?
I THINK YOU ARE THE MAN TO ASK FOR ADVICE.
I HAVE A SET OF 4 OHMS BOOKSHELF SPEAKERS RATED 175 WATTS .
I BEEN SEARCHING FOR A GOOD 4 ohms mini amp to drive my speakers. So far.....I can not find anything with a great stereo chip on board.
Could you help me getting the best mini amp for stereo set up. I dont like T amps.
Gioxtream ill help u just look up tpa3255 chip amp it will run them nicely
Yo Big D What Bout Hum Hiss ?
+joohop none noticed. It has a slight turn on/off thump, but not too bad
Thanks Buddy i'll look into one of these
that's impressive
+Don Heston not bad for $12? 3D print an enclosure and you've got a nice setup
tpa 3116d2 50w x2 + 100w sub test in 6ohm front and 4ohm sub please!!!!!!
👍
Sir what is the THD
Hey yo bigD, wish I still had my first car amp for you to test.... '93 pyramid (pos) blue power 4x75w. Pyramid LOL!
+BblastedD old School jewel right there 😝
There still in business still killing the fle markets across merica
TPA3116 would be even better