So Im thinking about changing my rig to a hybrid with a tube pre and SS power. I have several pre amps in mind but I dont know a whole lot about power amps. I have read just about everything talkbass has to offer and you have given me enough models to look at but one thing that is picking at my brain is that most of you, it seems, are using what I think of as typical PA power amps (QSC, E&W, Crown, Crest, Carvin), which seem to work fine for bass but there are power amps out there like the ampeg svp1600 and the fender MB-1200 that seem to be geared more toward bass players but also cost a bit more. So my question is, is it really worth the money to buy a power amp that's geared more towards bass players like the Ampeg and Fender or will PA style power amps like Crown, Crest, and QSC work just as well? Is there a difference sonically? Advantages and disadvantages of the two? Also is it worth the money to spend on a MOSFET power amp? Or is this just something I have to A/B to see which I like better?