I dont know if your talking about me but I built a pair of the 12vq subs and use the 2496 with a pair of QSC rmx1450's. I had the ep2500 for a short time before i got the qsc's. Either way its a pretty slick combo. not only am i using the dcx for crossing over my M80's and subs but also to eq in room response in both the subs and the 80's. The result is pretty impressive. I never thought i would be one to EQ my system but when i stopped caring about the audiophile bs and did it i wont go back.