Personally I love the MTX 92001, I picked mine up for 500$ the best amp Ive ever owned. It takes alot to get that thing hot and its got an ajustable subsonic filter and Q over some of the other amps.
I owned the MTX 7801 before the 92001 and I loved the 7801 for the longest time and it cant compare to the 92001, it cant make 3500+ watts at 1ohm, not that u would want to drive the amp that far but its got serious potential to run just about any daily setup