This is one ballsy brute! I've had many amps in my system (Adcom, B&K, Denon) and this unit stands above the rest in a big way. Resolution, speed and BASS that sound like very good 2ch amps is why I enjoy this amp. I listen to a lot of concert videos and the slam is fantastic. McIntosh charges a lot for their products but after having this, I can see why they have such high resale value. Hmm... should I buy the new MX150??