Hi friends, This is a new ''problem'' for me. My newest amp rig is a SVPCL into a QSC PLX 1804. When I turn up all my volumes, I get a strange Static ish sound. Low on noise, but speaker cone movement is pretty intense. When I take volumes lower, (either on the amp or the preamp), the problem seems to disapear. Only happens when a bass is plugged in. Bass not plugged, no problem. Tried a few diff cables, but still does it. Any idea what's the deal ????