I own 12 ep2500 amps, and 2 QSC RMX 2450 amps.. I use these behringer as monitor amps.
I use all PLX gear for my sound systems, but I can tell you this... After 5 years, both QSC have been in for repair... all of the behringers are still Kickin'.
here's another thing..... If you open up a behringer and QSC side by side, even the boards are almost identical.. they use the same components, same caps, same pots, same sockets, plugs, and even dip switch panels....
My repair shop even told me that you can use a schematic from one to troubleshoot the other...
I know they're not made by the same factory probably, but it's definitely a faithful reproduction.
I buy my EP-2500's for $269 each... I can buy almost 3 for the price of a QSC...
And I can tell you honestly, side by side, there is no difference in performance either way....
I highly recommend this amp... great value!