Hello everybody, just purchased a brand new Gallien Krueger GT700RB-II head together with two brand new GK Neo 112s. Beautiful, good sounding and versatile rig! My only complaint: if I set the woofer volume up to 10 (and above) and engage the woofer high cut there is a annoying midrange sounding hiss. The noise comes from the woofer, not from the tweeter. It makes no difference how the input gain or the EQ is set. The woofer is almost dead quiet without the high cut engaged! Any comments, is this a common "issue"? Thank you!