I am running it %50 on the preamp and %100 on the Windows control panel... if I crank it more then that it keeps clipping it out. My sub volume is at the 10 o' clock position. Maybe it's the kind of music... it is basically hip-hop/rap... What I mean by clipping out is it has a little rattling sound, "farting" (LOL) if you want to call it...
Can you guys check... here is one particular song...
Rascalz - Where You At
Hmm... maybe it's time for a KSW-15...