Review on 🎵 320W Hi-Fi Bluetooth 5.0 Power Amplifier Stereo Active Subwoofer Amp 2 Channel U-Disk Music Player - Douk Audio M1 PRO Upgrade by Ronnie Polk

Great sound quality and works well with a powered (active) subwoofer. Bluetooth 5.0 quality is excellent, even without an antenna (which makes it look a bit sleeker than with an antenna - I personally don't care). The range of this Bluetooth 5.0 device without an antenna is about the same as other brands with antennas and Bluetooth 4.2. That's good, but from what I've read about Bluetooth 5.0 range, theoretically if they had antennas on it, the range would be phenomenal. I was getting weird clicks and clicks every few hours - until I got a piece of 3.5mm. to 2 x cinch (do not use adapters, use one piece). Brought back my Foster Audio (no subwoofer out) which was also great quality. Both sounded and looked almost the same. But I had a spare powered subwoofer I wanted to use, which for me greatly improves the sound quality. Finally also like the control switch selector of BT, RCA and Off. Other units may switch automatically, which can be annoying. Whichever one you buy, look for a switch to control this functionality.