very light amp (switching power supply) performance is excellent, I used to push the sub and it makes very good job, even on the big box, the amp does not heat up enormously and is fairly quiet (j ' have known much more noisy) I'm not nearly change
I have already pushed a pair of APG TB115S, although making "only" 2x800w, performance was well, ca pushing hard and it was clean
the manufacturer announced 2x1250w into 4 ohms, and a test in a magazine revealed that issues a little more by channels 1270w sine and over 1600w in pulse, so very good at 4 ohms also
of the test and after the reviews on the net is little work at 2 Ohms without a problem (although I am not an amp for a long time under the load work) but 2.66 ohms (3 boxes per side) I think there is still enough to be serene, for my part I'm going to push a pair of term 2 in box 12 "pavillonnés therefore stay of 4 ohms.
the value for money was excellent at the time of purchase (about 1670 euro) since the price is increased (a little over 2000 euro now) but it is still worth its price and the ratio Q / P is still very good
it is the very high-end QSC
with the experience I remake that choice without problem, but not be as if I never had prices that QSC I have also fallen for Ram Audio S series which air is very good too (the reputation of the brand n is more to do)