In fact the amp is using exactly the same components as the SMSL DA 9. The design is just different.

Low pass cutoff frequency...................................................................70~200Hz aptX .............................................................................16bit/44.1 kHz_352kbps Subwoofer output level..............................................................................2Vrms Just received the new Sabaj A20. This a brand new class D amp made with a dual Infineon Merus MA12070 and fully balanced. THD+N ................................................................................................0.0008%I tried to open the case to take pictures of the module, the PCB etc .. but unfortunately it is complicated to dismantle ...

USB transmission ....................................................................Asynchronization Channel separation .....................................................................................90dB As we end off Part II with a detailed look at PCM fidelity, I can say that from an objective fidelity perspective, basically what I'm seeing is an ESS ES9038PRO-based DAC that's performing on par with the best devices available today as published here and on other audiophile objective measurement sources. The XLR 4.77Vrms output is clean with dynamic range of 130dB and 0dBFS THD+N better than -123dB. In a similar way, the RCA 2.35Vrms unbalanced output gives us an excellent THD+N of -120dB. On my more complex Triple-Tone signal, I'm seeing a TD+N of -118dB through the XLR and -111dB through the RCA which are again excellent. AAC ..............................................................................16bit/44.1 kHz_320kbps

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Anyway, no noise, no hiss, no distortion BUT I have not even gone close to turning it up anywhere near max (apartment). 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. Weight ..........................................................................................3.3kg/7.28lbs

Standby power consumption.........................................................................<0.5W Picture of the setup attached. Hardly an acoustic paradise down here, but at least the Snells make everything sound fun. Built-in multiple EQ modes and high/bass adjustment functions to easily match various speakers and music;Size ...........................................................................280x63x260mm (WxHxD) bits resolution is really not much to ask of modern DACs these days and the graphs basically look like they're layered on top of each other with minuscule variations. Notice that the only mentionable difference is that DACs do have slight frequency response variations, but even this is less than 1dB difference up at 20kHz (and often this is a reflection of the filter selected). Bluetooth specification...................................................................................5.0 The color display screen and user-friendly operating system are easy to understand, equipped with full-function remote control function;