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Class D Switching Power Amplifiers and Power D/A conversion

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Old 26th September 2012, 05:10 AM   #51
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One thought I have about why the TP60 sounds so good is that it appears to me to be a single ended design instead of BTL, as most Class D amps I've seen are. I looked up the TA2022 Tripath PDF and the example circuit shows a single ended design. Also, the picture of the insides of the TP60 shows only two toroids instead of four.
The Indeed TA2021 is BTL.
I haven't heard a SE design myself, but others on DIYAudio have reported that it sounds smoother than the BTL design.

James
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Old 20th January 2014, 12:04 PM   #52
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Join Date: Mar 2012
HiFimeDiy has T2 TK2050 w/ 2x TP2050 Single end outputs. I can say it's suberb when paired with a Connex SMPS300R 28V. Don't go further than 28V or you will need bigger heatsink or noisy fans.

People say TK2050 is worse than TA2020 when comparing different kind of products, Dayton implementation sux, for me it's worse than Lepai.

No one said TP-22 it's worse than TP-20.

TA2022 seems to has some prematurely dead problems and was quickly abandoned by Tripath wich change it for TA2021B with less power and TK2050 with separate musical controller + output modulator.

PSU it's very important, potentiometer and short input signal too.

Keep it as short as possible, use a stepped attenuator with 50k max.
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