Review on Nobsound NS-20G 200W Mini Bluetooth 5.0 Power Amplifier: Hi-Fi DSP Stereo Headphone Audio Amp with LED Display (Black) by Black Miller

I ran this amp with a couple of bookshelf speakers on my desk hoping for the smallest footprint. It should work with a phono stage and a DAC connected to a switcher using the RCA outputs. This amp uses a 3.5mm jack. I used an RCA to 3.5mm adapter and the 3.5mm input turned out to be buggy. I tried connecting the DAP to see if it was a cable or a switcher output, but the audio from those outputs was also crackling and static. It has been my experience that twisting the RCA cable in the amplifier sometimes gives a clear signal, but in any case it soon fails again. fell regularly. I ended up just returning it and hooking up the same components to a different amp, which worked fine. (Loxjie A10 and Yamaha receivers). So. very unimpressed. Appears to be hypertrophied.