
The comparison stops there, the momentum is rather weak, not feel like an amp of this power.
The sound is much worse than the mx. In addition it is not the 2 Ohm, not to mention it's a crap to fix.
I compared a Usa 850 or 900 with a cheaper Cerwin Vega 98, pregnant by a hand amp, to make a true comparison: It was ace QSC disgust.