I've owned this amp since Massive came out with the Nano series ears ago. Very simple to use, gain is responsive for tuning, but filters aren't that great on the amp. It's hard cutting out super low and super hi frequencies which is no good. The amp is running 2 subs at 1ohm, gains about 1/3 of the way up and after about 1 hour of full tilt bass the amp heats up so bad it shuts off. So if you're into hidden amp racks expect to need good fans or keep the amp in a well ventilated area! All and all for the price and quality it's a great "true", not over rated amp that puts out plenty of clean power for daily use.