I am planning out a few projects and I want to know what the experience has been with these boards. How do they perform sonically and do they ever come close to their power claims.....
What would be the estimated true specs on this one with a sufficient power supply and has anyone here ever played with this particular one maybe?
TPA3116 2 1 2X50W 100W Class D Amplifier Assembled Board Luxurious Amp Board | eBay
Thanks
What would be the estimated true specs on this one with a sufficient power supply and has anyone here ever played with this particular one maybe?
TPA3116 2 1 2X50W 100W Class D Amplifier Assembled Board Luxurious Amp Board | eBay
Thanks
You did not need to start a new thread for this - see TPA3116D2 thread. Great amp and sounds very good. Very mod-able too. Available on Aliexpress for $17.
I actually looked at that BUT it is referencing a different amp other than chip involved so I wanted to know if people had specific experience with the chinese made offerings out there. I will keep reading though.
With the amp you reference now gone we cannot see what it is. I don't think there is more than one Chinese maker of this now - YJ I think all red colored boards. The sound will be the same as long as parts are decent and they are following the reference design for the PCB by TI.
More than a few "IFs" there 🙂 Likely ALL the parts are fakes/clones and the likelyhood of the circuit following the Ti evaluation circuit are Slim to None.
Gee... what could they possibly cheat on? for a $17 ! Retail price point
Gee... what could they possibly cheat on? for a $17 ! Retail price point
Bare,
The folks who bought the $17 units report that the circuit appears to be the reference circuit with exception of change in inductor value of 22 uH instead if 10uH. The chip is real, why would they fake that when it is inexpensive when bought in quantity?
The folks who bought the $17 units report that the circuit appears to be the reference circuit with exception of change in inductor value of 22 uH instead if 10uH. The chip is real, why would they fake that when it is inexpensive when bought in quantity?
Weren't you just chewed out by Ken Kantor on another forum for calling all ebay Tripath chips fake as well? You didn't provide any proof there either.
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If you like RF interference, you will love this board.
I happen to want FM radio included in my set up and have found all the boards and finished Chinese amps I have purchased all suffer from interference.
The worst culprits are the amps that have been modded with "better sounding" inductor coils.
I have a strong feeling that this forum is closely watched and the "improvements" quickly added and put on the market without any kind of RF testing?
Do the boards suffer from self interference or cause interference to FM receivers nearby? I am finding that Bluetooth adapters emit a several khz whine noise interference that is hard to get rid of. Appears to be tied to a ground loop problem. FM is in the 88 MHz plus range so how does 400 kHz modulation from these amps impact that? I can see that AM is a problem. Choosing high quality shielded inductors will go a long way in reducing noise emission.
I'm not sure what is going on here. Using a TDA chip amp, fm is perfect, but when I switch over to the 3116 there is audible white noise. When pushing the mono button the noise disappears, it's as if the signal is being partially blocked.
I have an SMSL 2020A+ D-amp here and it just completely obliterates an FM signal by just being on with no connections.
This might be interesting for those who have the knowledge. Switching Amplifier (Class D) Basics | Audioholics
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