Review on Monoprice Unity 100W Bridgeable Power Amplifier in Black by Jarrett Young

First of all, you just have to know that the device comes with a volume screw on the back up to the stop. It took me an hour of cable troubleshooting to finally figure out why the unit was not making any sound. First turn the volume up to at least halfway with a screwdriver so that you can hear something. I had two ceiling speakers in the bathroom and loved having AirPlay via the optional Airport Express, so this little amp fits perfectly in my closet next to the bathroom. The sound is surprisingly good for the small size and the speaker is already turned up very loud at half volume. I've also noticed that when the volume screw on the back is turned all the way out, the sound quality isn't as good as if it were in the center and just had the AirPlay volume turned up to the same volume. In other words, there is more distortion at 100% gain. Therefore, for the best sound quality, do not increase the volume on the device to the maximum. Also, as others have said, the speaker terminal leaves a lot to be desired, but it's functional. Overall I am happy with the purchase and the value for money. Thanks for reading and YMMV.