After much online searching, I've pretty much settle on buying a QSC GX3. My plan is to eventually build two fearful 12/6 and use the GX3+Fearful combination as bass rig, guitar rig or PA, depending on my needs. I own a Tech 21 VT Bass (for bass) and a Tech 21 British (for guitar). Will these properly drive the GX3 which has an input sensitivity of 1.2v? Thanks!