So far, I'm very happy with the EP175...it's going to fit my needs well. Mind you I haven't had time to really find the sweet spot for it in my room, and my bass management settings are still in flux, so I'm hoping I haven't heard it at its best yet. I'm in an apartment right now, so really big bass isn't an option for me...otherwise I would have gone with the 12" model in a heartbeat. Should I leave the crossover control knob on the sub turned all the way up to 150, Btw? I need to play with the phase switch, too, but figured I'd wait til I really found that sweet spot in the room first. I can't hear any difference at all right now.