Sabaj A20a 2022 Version Power Amplifier MA5332M Chip 350W Class D Bridge Tie Load Provide XLR & RCA Bluetooth 5.0/XLR/RCA Input, RMS 170W x 2(4Ω) 0.004% THD+N

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aptX .............................................................................16bit/44.1 kHz_352kbps

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. I listened to the amp with my favorite Audiophile Playlist for 1 hour yesterday, it is really impressive @ first listening. Seems promising in relation to its ration performance / price. Channel separation .....................................................................................90dB Picture of the setup attached. Hardly an acoustic paradise down here, but at least the Snells make everything sound fun. 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.

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Weight ..........................................................................................3.3kg/7.28lbs Since I own almost all TPA325X in the market and some Hypex Ncore and Purifi at home, I can tell you that it is pretty good even very good in comparison ... for the little that I have heard. A large number of audiophile-grade audio components are used to enhance the subjective sense of hearing;

I'm running in bluetooth right now, just because I don't want to haul too much stuff down here tonight. Connecting was easy/normal w my Samsung phone. Unfortunately this phone doesn't do Aptx HD, so I can't test that.Channel separation ...................................................................................108dB Overall, this is a phenomenal performance level for a modern PCM DAC for both RCA and XLR line-level outputs. The amp is made in an aluminum case, it feels sturdy and beefy. The front of the amp has a mirror front and the volume controller has a dual function (volume and selector). When you press a few seconds on it , it powers ON / OFF. The amps also comes with a remote control. Standby power consumption.........................................................................<0.5W

aptX-HD ..........................................................................24bit/48 kHz_576kbps Built-in multiple EQ modes and high/bass adjustment functions to easily match various speakers and music; 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.

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USB transmission ....................................................................Asynchronization THD+N ...................................................................................................0.004%

Using the latest DSP chip with ST high-power amplifier chip, carefully designed and debugged, its distortion is as low as 0.0008%; Subwoofer output level..............................................................................2Vrms THD+N ................................................................................................0.0008% 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). 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.

Bluetooth 5.0

I'm running it right now on my "test bench" (aka in the garage) before I move it inside. I'm connected to some Snell K/IIs I keep down here for just such an occasion. Just received the new Sabaj A20. This a brand new class D amp made with a dual Infineon Merus MA12070 and fully balanced. SABAJ A30a Power Amplifier 200W*2 Axign AX5689 XU208 DSD512 Bluetooth LDAC Apt-X HD AAC For Passive Speaker & Active Subwoofer SBC ..............................................................................16bit/44.1 kHz_328kbps The color display screen and user-friendly operating system are easy to understand, equipped with full-function remote control function;