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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SABAJ A30a Power Amplifier 200W*2 Axign AX5689 XU208 DSD512 Bluetooth LDAC Apt-X HD AAC For Passive Speaker & Active Subwoofer 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. Standby power consumption.........................................................................<0.5W USB compatibility ..................................Windows 7 / 8 / 8.1 / 11(Needs Driver) Mac OSX、Linux(Driverless)

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. Size ...........................................................................280x63x260mm (WxHxD) USB transmission ....................................................................AsynchronizationYou have the possibility to adjust the bass / treble, the amp also has some presets, I'm not a fan of it, I left it in "direct" mode. 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.

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 SNR ..........................................................................................................116dB Inputs ..................................................................................................RCA / XLRSBC ..............................................................................16bit/44.1 kHz_328kbps aptX-HD ..........................................................................24bit/48 kHz_576kbps

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.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). Weight ..........................................................................................3.3kg/7.28lbs THD+N ................................................................................................0.0008%

Using the latest DSP chip with ST high-power amplifier chip, carefully designed and debugged, its distortion is as low as 0.0008%; Build quality is definitely a step up vs some smaller/cheaper Aiyimas I've been messing with lately. Well, at least fit and finish - I can't comment on the internals. AAC ..............................................................................16bit/44.1 kHz_320kbps All aluminum alloy CNC processing technology, using anodizing technology, fine workmanship, first-class touch; Channel separation .....................................................................................90dB

Black Friday recommend

Low pass cutoff frequency...................................................................70~200Hz 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. Built-in multiple EQ modes and high/bass adjustment functions to easily match various speakers and music;