Review on Enhance Your Home Theater Experience with Soundavo PSB-400DSP Class D Subwoofer Amplifier - 400W RMS/1000W Max Power, DSP, and LCD Presets Display by James Arellano

I have been using this for about a month to power a pair of 12 inch subwoofers. Very powerful and clear sound. Note the input selector on the back of the unit. The device started and worked, but then shut down after a few minutes because it was set to a 12V trigger input. Set it to Auto and it will turn on automatically when you play music. After that everything is fine. The volume control could be a little easier. You have to scroll through all the menus to get to the volume option to make adjustments as the style of music changes. All in all a great component.