I am starting to think I have a problem with my 115 cab. My setup is this: bass> Eden Navigator> QSC poweramp> Epifani 115, 410. The 410 sounds fantastic as ever, but the 115 has almost no low end. It sounds very much like it's being crossed over in reverse, not getting the deep lows. No, I do not have the crossover turned on! If I crank up the low filter on the Eden the lows seem to resurface, but only with it way up. I also have run both cabs off my R1000 head, and got the same results so I know it's not an amp problem. Has anyone ever heard of this scenario? I am wondering if I have caused some speaker damage. I used to play in a LOUD band and at rehearsal's had my rig cranked, putting 800 watts on the 115. What I can't figure out is that the speaker works, no hiss or any other audible signs of damage, but just doesn't sound right. Any insights on this would be greatly appreciated!