maxxevv
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You do realize the IC specifications and the completed Aiyima product are two completely different things?
TI use a 51V supply, THD at 10% and clearly a power supply that would cost multiples of the price of this Aiyima thing. Then for the maximum 8R spec they use a 53.5V supply.
The completed product being sold and reviewed here, as supplied, cannot achieve its rated specs. Not even remotely close. It is the customers that buy based on published specifications that are being deceived and ripped off.
This brings up a question I am having.
Has anyone tried powering the A07 board with a dedicated 48V power supply with a real rated 500W+ and measured the output of the resultant combination ? Would we get over 200W per channel?
@amirm 's test basically use power supplies that only have 160W in the total output to drive the amp though and we do get close with 77W ( 154W total) per channel at 4 Ohms using one of the power supplies didn't we ? What if the power supply for the 48V 3A one was a bogus rating, hence its less than good showing in the measurements ?
Of course, the TI chip would need far better cooling solutions to run at that kind of power pushed. Possibly a computer chip cooler would be needed.