1) the ADCOM GFP-750 is a superb preamp. I just installed mine - expecting little or no change. I was at-the-least hoping to alleviate my persistent ground-loop (though tamed, it was everready...). Man, was I :shock: !!
The GFP-750 completely opened-up the sound. Wow. The response was more crisp (immediate) and the bass MUCH more opened. My 4345's have never, ever sounded so open. It was as if they could really breathe...
2) The Hafler's don't approach the capability of the QSC CX-series. Widget and I have unintendedly verged on a nearly identical signal path. The only remaining departures are the amps and EQ. I knew I loved these QSC's - and by improving the preamp, I just got a new stereo...
Widget - time for a visit! Freddie, you too!!