They're not exactly faking or cloning the chips, they're faking the 'naming' of the boards. I suspect the chip used in the board above is a TPA3110 (there are no 28 pin TPA3116/3118/3128 chips). I don't know how far the coverage or influence of DIYAudio extends, but 3118/3116 boards have a lot of coverage and a certain cachet. I'll bet it's a lot easier to sell a 'fake' 3118 board than an honest 3110 board...
Yes, exactly. Earlier in this thread I wrote that I'd received a similar (same?) board from another usually-reliable seller here in Australia. The chip was named a 3118 but had 28 pins, but the photograph on the eBay listing showed 32 - which was why I went with the vendor.
After receipt when I advised them, they initially suggested it must have been a new variant of the 3118, but later agreed to refund my money. I'd bought two boards so agreed on a refund for one of them in lieu of sending them both back.
I suggested to them that they were probably TPA3110's.
I won't buy semiconductors from either of these sellers any more, which is a shame because they used to be my main source of basic opamps and the like for years.
Disappointingly, when I received re-labelled NE5532's from one of them, it took months for them to 'agree' they were not NE5532's without really saying so or offering any reason, merely offering to replace the dodgy ones with real ones - no apology, or offer of anything in compensation for the fact I then had to order them from Mouser. Not many people know how to treat customers any more...
I told them I didn't want the replacements as I couldn't trust them to be genuine.
I suspect they are struggling to compete and have started to turn a blind eye to secondary supply chains in the hope most customers won't notice.
After receipt when I advised them, they initially suggested it must have been a new variant of the 3118, but later agreed to refund my money. I'd bought two boards so agreed on a refund for one of them in lieu of sending them both back.
I suggested to them that they were probably TPA3110's.
I won't buy semiconductors from either of these sellers any more, which is a shame because they used to be my main source of basic opamps and the like for years.
Disappointingly, when I received re-labelled NE5532's from one of them, it took months for them to 'agree' they were not NE5532's without really saying so or offering any reason, merely offering to replace the dodgy ones with real ones - no apology, or offer of anything in compensation for the fact I then had to order them from Mouser. Not many people know how to treat customers any more...
I told them I didn't want the replacements as I couldn't trust them to be genuine.
I suspect they are struggling to compete and have started to turn a blind eye to secondary supply chains in the hope most customers won't notice.
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That must be what’s happening. Renaming 10W TPA3110 as TPA3118. The 3110 sounds great but just don’t put more than 18v on it.
Sort of like counterfeit money guys who bleach $1 bills to get genuine money paper stock and then print $100 on the blank paper. I got that from a Lee Child novel. 🙂
Sort of like counterfeit money guys who bleach $1 bills to get genuine money paper stock and then print $100 on the blank paper. I got that from a Lee Child novel. 🙂
i got amps with cs8673 chips on it and they work flawlessly with 24volts.
and they are sonically close to the ti chips
and they are sonically close to the ti chips
I don't like those little D class amplifiers at all. TPA3255 is a minimum of acceptable sound, albeit more expensive.
Whenever I disassemble a blue-tooth speaker, I find TPA3118 inside.
I guess this is a great market, interesting for the copycats.
I guess this is a great market, interesting for the copycats.
I've never used any of these modules before. They were intended to convert a non-functioning Philips portable valve radio to something usable using the insides of a half decent stereo transistor FM radio I already have driving the class D amp, just for fun.
I would not recommend any class-D amp module for a stereo transistor FM-radio.
Their RF noise will spoil radio reception.
Go for a simple LM386 module or similar instead.
Their RF noise will spoil radio reception.
Go for a simple LM386 module or similar instead.
I'm sure I read somewhere that the IKEA range of active speakers used TPA3116, which is very similar to the TPA3118.
Yes, when space is limited, something like TPA3116, TPA3118 must be used, because TPA3255 are on larger PCBc.
You just need to detect fakes somehow and buy the original. 🙄
An alternative could be some other chips, but in the AB class. I recently built a small amp with a TDA7396 and it plays very well. That chip requires a single supply up to 18V. It works in bridge mode and has aprox. 30W at 4 ohms. It can also work at 2 ohms (45W).
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has anyone tried this btl version?
i thing is good for diy low budget mono block using fullrange speaker.
Small size design, BTL output, the maximum output power 100w, can drive 2 ohm speakers, be balanced (differential) input, external heat sink chip work more stable.
Signal input mode can be selected according to the following two needs:
Balanced input signal (differential): Signal + Signal -, GND (ground).
Unbalanced inputs (single-ended): - end and GND (ground) short circuit, the signal input from the + terminal.
Imported Brands 3300 / 25V filter capacitor
Board size: 75mm * 50mm
Operating Voltage: DC 12v-24v
Maximum output power: 100w (2 ohm speakers connected)
https://www.aliexpress.com/item/1005007239998058.html?spm=a2g0o.productlist.main.105.7efb04kI04kIsM&algo_pvid=d63c84c8-4b2a-4098-a96a-b0076cc35abd&algo_exp_id=d63c84c8-4b2a-4098-a96a-b0076cc35abd-52&pdp_npi=4@dis!HKD!26.28!18.93!!!3.36!2.42!@2101062a17381437169786493e965a!12000039917090637!sea!HK!6058207197!ABX&curPageLogUid=sDKBsuaC62LN&utparam-url=scene:search|query_from:#nav-specification
i thing is good for diy low budget mono block using fullrange speaker.
Small size design, BTL output, the maximum output power 100w, can drive 2 ohm speakers, be balanced (differential) input, external heat sink chip work more stable.
Signal input mode can be selected according to the following two needs:
Balanced input signal (differential): Signal + Signal -, GND (ground).
Unbalanced inputs (single-ended): - end and GND (ground) short circuit, the signal input from the + terminal.
Imported Brands 3300 / 25V filter capacitor
Board size: 75mm * 50mm
Operating Voltage: DC 12v-24v
Maximum output power: 100w (2 ohm speakers connected)
https://www.aliexpress.com/item/1005007239998058.html?spm=a2g0o.productlist.main.105.7efb04kI04kIsM&algo_pvid=d63c84c8-4b2a-4098-a96a-b0076cc35abd&algo_exp_id=d63c84c8-4b2a-4098-a96a-b0076cc35abd-52&pdp_npi=4@dis!HKD!26.28!18.93!!!3.36!2.42!@2101062a17381437169786493e965a!12000039917090637!sea!HK!6058207197!ABX&curPageLogUid=sDKBsuaC62LN&utparam-url=scene:search|query_from:#nav-specification
