I use it for six months to two Satellites 400W each and a subwoofer 900w Beyma.
Positive: it is not weakening, it does not heat thanks to its two large fan with foam anti dusts, not breathing and has many rglages: 30Hz filters, limiter, etc. ...
Ngatif: It is extremely heavy 45Kg we not move far from alone, noisy fan in the house (a lot of air blowing).
Before I had a cx1200 AudioPhony too fast but good enough to saturate my use.
The price is right trs seen the power will builds I do not regret it.