I've got way too many of the TPA's but the best of the bunch is the Volt+
https://allo.com/sparky/volt-plus-amp.html
https://allo.com/sparky/volt-plus-amp.html
Is this (from the same site) the same item, just 94 cents more?
https://www.banggood.com/TPA3118-Di...-p-1081354.html?rmmds=detail-left-hotproducts
It is a lottery. Original vendor I used 12 months ago doesn't sell them now.
Recently received boards are not branded Sanwu on the PCB. Despite advert piccies showing examples of a branded board. On eBay at least, they seem to nick each other's photos.
At this point I'd say buy cheap. Or buy a Volt+ Or buy from someone stating genuine Sanwu (if you can find one).
Cheap 3118:
DC 8-26V TPA3118 PBTL Mono Digital Amplifier Board AMP Module 1*60W Arduino
Cheap 3116:
DC 12V 24V car TPA3116D2 2x 50W Digital Audio Power Amplifier Board Class D Amp | eBay
How this is going to be mounted correctly?
Even cheaper 3110:
TPA3110 2X15W Digital Audio Stere Amplifier Board Module Mini Binaural
DC 8-26V TPA3118 PBTL Mono Digital Amplifier Board AMP Module 1*60W Arduino
Cheap 3116:
DC 12V 24V car TPA3116D2 2x 50W Digital Audio Power Amplifier Board Class D Amp | eBay
How this is going to be mounted correctly?
Even cheaper 3110:
TPA3110 2X15W Digital Audio Stere Amplifier Board Module Mini Binaural
My experience with 3116d2 is very good. Very good sound, better than volt+.
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The 3116D2 can be had from the Sanwu site for $10 shipped, so that is the obvious choice if the brand is truly important. Some of the 3118 no name boards look suspiciously like the Sanwu without the brand, just the brand name missing, probably same board, no? On some, the inductor looks different, so definitely not the same board, but the layout is otherwise identical, though lettering not as sharp. I ordered the Banggood 3118 with the Sanwu on the back in the pics (and $5+ price to match), but with these sites, we know the pics have little to do with what is delivered. I ordered some highly counterfeited Sennheiser iem once for $8 shipped, expecting a fake, and lo and behold, a genuine arrived. One of their tactics is to ship both fake and genuine is all I can guess. That was dealextreme.com.
For the 3110, I take it the obvious mod is to replace the 1uf input and .22uf ceramic caps with metallized polypropylene film? I have had and played with the Sure version with a 12V and did not find it any where near as satisfying as the original version Sure TA2020, but I am going to do the mod and use an 18V supply, perhaps 12V is just not enough juice for these.
For the 3110, I take it the obvious mod is to replace the 1uf input and .22uf ceramic caps with metallized polypropylene film? I have had and played with the Sure version with a 12V and did not find it any where near as satisfying as the original version Sure TA2020, but I am going to do the mod and use an 18V supply, perhaps 12V is just not enough juice for these.
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On the small sure tpa3110 ceramics are meant to be 220nF, measuring between 150nF and 180nF. Also some 1nF ceramics, no 1uF or other. Lack of bass is caused by gainsetting and ~150nF inputcapacitors.
Bigger sure tpa3110(pcb like 2020) I believe has 2.2uF ceramic inputcapacitors, that value sounds differently, no matter ceramic or PP or mylar.
Bigger sure tpa3110(pcb like 2020) I believe has 2.2uF ceramic inputcapacitors, that value sounds differently, no matter ceramic or PP or mylar.
Correct, I measured .2uF on ceramic input caps C1 and C10. The outputs C4, C5, C12, and C13 at 1.23nF. So values differ substantially from the TPA3110 datasheet.
Would advise not wasting time or money getting the 3118 boards from Banggood. Not only were they not Sanwu like shown on the listing (and at over $5 each), they don't match, have different looking parts on them. Into the garbage they go, will give eBay a try.