Had two Hs. Really like them overall, but not aggressive enough for my taste. Also there was a design or manufacturing flaw that makes the channel switching go bad. Just needs two new diodes and two capacitors, super easy fix. I fixed both of mine myself. Either get one that has been fixed or have the fix done (factory diode current rating too low) before it causes a problem. It’s the rectifier circuit that makes the relay supply in the switch circuit. Don’t be scared off, it’s a good chance to get a good price on an easily repaired amp.