Pros: Auto On / OFF Auto Input Switching Two output zones

Cons: Small form factor, not standard rack size

Overall Review: This amp does what it is advertised to do. The complaint about the switching not working must be from folks that are to busy to read the manual. The manual clearly states that the primary input is line 2 and any secondary device should be hooked to line 1. While this is a little bit of backward thinking, it is documented clearly. I have also learned that my new unit has a much longer delay time when switching from line 1 input back to line 2 input. When I called Audiosource support I was told that all of the units being built for the last year or so have a delay of around 10 seconds. This should help “FIX” the units of the people that don’t have time to read the manual. I have also learned by trial and error (and also reading the manual) that to have speakers A & B play at the same time you just push the buttons at the same time. Not what I would expect, but works fine. The unit’s small size works for most people, but I would have liked it to be mountable in my rack of gear.