3e audio TPA3255 260-2-29A Amplifier Review

[Sokel]

Why would 15kHz THD above 2W matter?

What content is there that has auch elevated HF levels?

Ditto for 10 and 5kHz.

Clapping audience

Seriously now, realistic clapping is really hard to capture and playback, specially the enthusiastic, sudden one.
It's like a small explosion going far above 20kHz.

 

[pma]

Why would 15kHz THD above 2W matter?

What content is there that has auch elevated HF levels?

Ditto for 10 and 5kHz.

It does not when speaking about harmonic distortion only. I am sure you know that it is about nonlinear distortion in general. And nonlinear distortion is not only THD. High THD at high frequencies may reflect in high intermodulation distortion with components in audible band. This is a case of TPA3255 implementations.

 

[staticV3]

It does not when speaking about harmonic distortion only. I am sure you know that it is about nonlinear distortion in general. And nonlinear distortion is not only THD. High THD at high frequencies may reflect in high intermodulation distortion with components in audible band. This is a case of TPA3255 implementations.

With synthetic MT signals sure (CCIF etc.), but I have not seen proof that this is a meaningful issue when playing music.

Do Null tests exist comparing an A/B Amp to a Class D like the TPA3255 with realistic signals?

 

[totti1965]

It does not when speaking about harmonic distortion only. I am sure you know that it is about nonlinear distortion in general. And nonlinear distortion is not only THD. High THD at high frequencies may reflect in high intermodulation distortion with components in audible band. This is a case of TPA3255 implementations.

That I, as a Topping B100 owner, have to defend the 3eAudio 3255 implementation once again :
Intermodulation below minus 100 dB....
Even the most sensitive ears should not be able to distinguish this from below minus 120 dB (B100).

 

[transformer-coupled]

That I, as a Topping B100 owner, have to defend the 3eAudio 3255 implementation once again :
Intermodulation below minus 100 dB....
Even the most sensitive ears should not be able to distinguish this from below minus 120 dB (B100).



View attachment 480690

I love to listen to J.S: Bach cello solos and baroque and classical orchestral music like Mozart symphonic works so i guess my hearing is very good.
I still use my proud 3e-audio 260-2-29A module with a cheap linear psu and , had had also owned the Topping B100 monoblocks, have to say that in my opinion subjetively the 3e-audio PFFB module won the already sold B100 monoblocks hands off in all sound quality regards not only resolution and transparency but also dynamic range and DRIVE in the woofer accurate lows and sweeter non-fatigue highs. SO STILL IN OCTOBER 2025 LONG LIVE 3E-AUDIO PFFB MODULES !! LONG LIVE DIY!!!!!!!!

 

[mocenigo]

There won’t be any audible difference.

If 40 Watts are not sufficient for you, the 3eAudio A5 will be the far better choice.

Well, "there won’t be any audible difference" until power is sufficient to drive the considered speakers with the given load.

Roberto

For learning more about your realistic Watt needs, you need two things:
a) a decibel meter for your phone (like Dezibel X, 4.5 Stars in the App Store)
and
b) this website:

Peak SPL Calculator

The 3eAudio A5 can play your music 1.5 dB louder in extreme conditions,
so this, maybe, can be a point.
Talking about measurements: The channel separation of the A5 (112 dB @ 1 kHz) is even a bit better
than the channel separation of the LA90 discrete (92 dB @ 1 kHz)! But this is not audible.

 

[totti1965]

I love to listen to J.S: Bach cello solos and baroque and classical orchestral music like Mozart symphonic works so i guess my hearing is very good.
I still use my proud 3e-audio 260-2-29A module with a cheap linear psu and , had had also owned the Topping B100 monoblocks, have to say that in my opinion subjetively the 3e-audio PFFB module won the already sold B100 monoblocks hands off in all sound quality regards not only resolution and transparency but also dynamic range and DRIVE in the woofer accurate lows and sweeter non-fatigue highs. SO STILL IN OCTOBER 2025 LONG LIVE 3E-AUDIO PFFB MODULES !! LONG LIVE DIY!!!!!!!!

Am I detecting a hint of “builder's pride“ here?