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Dual Mono TPA3221 : pictures insides
- Thread starter daniboun
- Start date
No different to the majority of class-D amplifier boards on the market.
For example, two TPA3255 boards - one from Shui Yuan, one from 3e-Audio -
Hi, I received my TPA3221, the delivery was fast, also the packaging was perfect.
I quickly plugged in and turned the volume to max, no whistling or anything else, dead silence.
I'll come back to you with my comments. To date it is playing well, very satisfied.
I quickly plugged in and turned the volume to max, no whistling or anything else, dead silence.
I'll come back to you with my comments. To date it is playing well, very satisfied.
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Hi,
I played the FR TPA3221 for several days and compared it with my Sabaj A20a 2019 amp (double Infineon MA12070).
The subjective comparison was much more difficult for me than I thought.
While my 2 TPA3255 amps that I built, compared to the Saba, were quickly put aside because I find the sound a bit clinical. While the TPA3221 is quite the opposite, extremely lively and above all a much more solid bass than the MA12070. .
The dual TPA3221 is powered with a Meanwell 24V 8.8A (210w) SMPS, the bookshelf speakers have 4 ohms with an impedance dip at 2.7ohms and efficiency at 87db. I tested the power cuts, by closing the DAC (connected to the amp) before and after the amp, by unplugging the SMSP direct from the AC, there is no noise even the most tic.
Also the volume at maximum without signal and the ear more than 2 cm from the tweeters, there is no hiss.
I do not regret the purchase of this amplifier, for me at the new price, it's a deal.
I played the FR TPA3221 for several days and compared it with my Sabaj A20a 2019 amp (double Infineon MA12070).
The subjective comparison was much more difficult for me than I thought.
While my 2 TPA3255 amps that I built, compared to the Saba, were quickly put aside because I find the sound a bit clinical. While the TPA3221 is quite the opposite, extremely lively and above all a much more solid bass than the MA12070. .
The dual TPA3221 is powered with a Meanwell 24V 8.8A (210w) SMPS, the bookshelf speakers have 4 ohms with an impedance dip at 2.7ohms and efficiency at 87db. I tested the power cuts, by closing the DAC (connected to the amp) before and after the amp, by unplugging the SMSP direct from the AC, there is no noise even the most tic.
Also the volume at maximum without signal and the ear more than 2 cm from the tweeters, there is no hiss.
I do not regret the purchase of this amplifier, for me at the new price, it's a deal.
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