Bought there two months +/- 285euro, even conception ep 2500, used to power (for the moment) 1 subwoofer sub bass (from +/- 35 hz to 80 hz) (bass reflex) with the hp rcf a LF 21 N 451. I have the realis ebenisterie on a map bc, L amp and bridg mode 8 ohm / 30 Hz low cut, well ... surprise! the sound is good and punch and correct, and moreover it's really cheap, and this is not the first amp that I bought (I have had qsc usa 1300 base model, a soft power series DIGAM 4004 q + / - 2800 euro / 2 peavey pv 2600 ...) summary in the price of soft power (4000w), I behringer ep 10 4000, which will certainly be much noise, now I have opted for the latter ( certe bulkier!)