This cracks me up! The B&K ref 30, and almost the Adcom GFP750 preamp, is sonically no better than ANY RECEIVERS PREAMP SECTION!!! It's pretty well bland, warm, digtal sounding, and just plain "regular" sounding! Infact, sonically, it reminds me greatly of the much overhyped/rated Sony SDPEP9es that was rated so high!...another "noisy" blandish sonic dissapointment!
Now, I know I'm being a bit harsh, but really, you could do better with even an old used Acurus Act 3 than the B&K! And, as for the GFP750 preamp this last genleman mentioned, yes it's ok, but it's not class A material really! SOME ONE WAS PAID BIG TIME TO RATE THAT UNIT THAT HIGH!!!....OR SMOKING SOMETHING. I've sold that unit for years, in two high end stores, and it doesn't come close to competing with better TRUE class A preamps!...not hardly!
Now, I know I'm being a bit harsh, but really, you could do better with even an old used Acurus Act 3 than the B&K! And, as for the GFP750 preamp this last genleman mentioned, yes it's ok, but it's not class A material really! SOME ONE WAS PAID BIG TIME TO RATE THAT UNIT THAT HIGH!!!....OR SMOKING SOMETHING. I've sold that unit for years, in two high end stores, and it doesn't come close to competing with better TRUE class A preamps!...not hardly!