I currently have a DB659 which I run through various sized QSC amps depending upon the app. I am pleased with this combo, BTW, but of course I am a gear head and love the idea of adding tools to the tone toolbox I have been giving very serious consideration to picking up a DB750. However, for those with experience, do you see any benefit to that or would you find it redundant? My thinking is that the 750 has a different (if not more elaborate) PreAmp and I think there is something to the notion that having an integrated power section designed specifically for the preamp adds a character to the tone that cannot be achieved using a preamp in conjunction with a generic power amp (not that I thinnk QSC amps are bad, just sort of neutral in their affect on the overall sound). In fact, the benefit of flexibility is truly the vanguard of the Pre/Power amp combo, which I do appreciate. Is this just my succumbing to the never-ending search for the best tone? Or is there some merit to my thinking? Thanks!