I use it in mobile disco with two and a SX300 rx218S. The fever is superb, a very deep bass and super dynamic.
Really, it is worth its price. (It's not easy to reach the limit!) Now the little less still is its weight! Amplifier over 16 kilos it weighs, but it's nothing compared to what it can give!
Now, I headed over to the compact series. Same, but easier to transport.