Review on 🔊 Nobsound 100W Subwoofer Amplifier: Digital Power Sub Amp for Immersive Bass Audio (Black) by Dev Gotoda

This item is tiny; about two inches wide and one inch high. I took mine apart and installed the faceplate and circuit board into the speaker enclosure. I noticed that all the components were of very good quality and the overall workmanship was excellent. I cut off some wires going to the back panel and was a little annoyed because the soldering on the back connectors was so good. Sometimes I hear a slight crackle coming from the subwoofer I assembled. I can't tell where it came from - maybe a speaker, maybe an amplifier, maybe a generic cabinet design or... . . not sure yet. So I didn't rate the sound quality. But judging by the build quality, I'm assuming that the hissing I'm hearing at times isn't from the amp.