I possde 2 amps of this type, purchased new.
I use them since October 2005.
A push of a pair of RF14 in DAS and the other pushes a pair of subwoofer SUB15P home DAS.

Powerful LGERS, dynamic, do not mind working up rgime and without complaint, do virtually no heat, pretty face, level indicators (signal, - 20, -10 dB, and Clip) very practical , etc ...
These are the main CHARACTERISTICS these amps.
In short, a trs good product with a quality / price I found excellent.

I am happy with these amps trs and if another purchase amp silent again, it would be the amps in this range without any hsitation.

[edit of 08/06/2006] Unfortunately QSC adj abandoned the manufacture of these amps PLX Arnove and its range by switching to PLX2.
I do not doubt the quality and the technological revolution brings new range PLX2, but has a park of PLX and is perfectly satisfied, we would be able to continue with AIM this range amp for future expansion configuration.
Now the racks will be dpareills. Unless you change all the amps to switch PLX2 or even in the PL ...