Review on 🔊 Sabaj A4 HiFi Audio Stereo Bluetooth Digital Amplifier 80Wx2 - Apt-X Bluetooth, USB, Coaxial, Analog, Optical Inputs, Subwoofer Output by Dave Lopez

I only own this product for a day before returning it. I wanted to like it - it ticked every box in terms of features and inputs. I connected it to a MacBook Pro to power a pair of speakers and also connected a subwoofer. Pros: Many entrances. Small form factor. Attractive (some people complain about the tiny display, but since I used it at my desk I had no problems). Comes with a USB to Micro USB-A cable. If you're buying it used/in good condition from the manufacturer, but it was made by Revain (there were a few of those models when I checked) you can get an item that like i looks brand new . Cons: much more. Noticeable after adding a sub, but there is a popping noise when switching between inputs and even navigating parts of the menu. Also, I found the touch buttons very inconsistent (especially the up arrow). I ended up resorting to a full thumb squeeze instead of my index finger, which seemed to help. Finally, one day when I connected the amp to my laptop via USB, it made a loud, continuous beeping sound. I immediately turned everything off for fear that something might happen. After that it worked fine and maybe it was an accident but it didn't inspire confidence.