SABAJ A20a Balanced Stereo Power Amplifier Receiver 2 Infineon MA12070 Chip Hi-Fi Class D Amp 150W x 2Ω XLR RCA for Home Speakers with Remote Control

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Using the latest DSP chip with ST high-power amplifier chip, carefully designed and debugged, its distortion is as low as 0.0008%; Anyway, no noise, no hiss, no distortion BUT I have not even gone close to turning it up anywhere near max (apartment). Initial impressions are great. No noise that I can hear (disclaimer: I'm in my early 50s). It's driving these speakers with plenty of volume, and I haven't tried to really push it yet. At about 30 min of steady medium-high volume it's cool to the touch.

Channel separation ...................................................................................108dB SBC ..............................................................................16bit/44.1 kHz_328kbps Channel separation .....................................................................................90dB Since I'm basically "throwing the book" of measurements at this device, we can see that certain characteristics are the result of the ESS DAC chip itself. For example the "hump" (THD and IMD) between -45 to -25dBFS or so, and the sinusoidal pattern of odd harmonic distortions when examined in very close detail with 0.1dB steps using a low-noise notch filter. The problem is that they are using the wrong volume pot for volume control on their audio equipment.So, I'm very happy so far! I'd love to know how this measures. Or maybe not, 'cause I'll be slightly sadder if it bombs. Size ...........................................................................280x63x260mm (WxHxD) A large number of audiophile-grade audio components are used to enhance the subjective sense of hearing; Weight ..........................................................................................3.3kg/7.28lbs

I can't say for sure about the sound quality yet, but it is a very clear and high quality sound similar to AO200. I feel that the bass has become a little stronger. Bluetooth specification...................................................................................5.0 Notice that I've turned on the "Peak" tracing as well to capture the highest values across the 8-average readings. Not unusual to see some 60Hz mains hum with harmonics getting into the measurements with unbalanced connections. We're basically looking at -110dB RCA and -120dB XLR noise floor and distortions otherwise.

If you mean it in the sense of "all good amps sound just as good" sure, I haven't tried anything other than Aiyima A07 so I won't comment on that. However from my experience with headphones and headphone amplifiers, that's simply not true. That is just my subjective opinion which doesn't matter to many here, some may appreciate it though.