In the Xonar control panel, next to where you select the output device, theres a tool button (looks like a hammer iirc) in there you can select one of three modes, Pro gamer being the middle one (55-65ohm iirc) with exciter being the top, balls out, loud mode
Sorry to be so vague, I'm not at my PC
Might give the E5 a bash, it's only £12
Oh yeah, I totally forgot about that setting, I think I put it to pro gamer already and forgot about it. Too many things to fiddle with
