Daltonlanny,
I was considering the same choice you are a few years ago.
The Adcom GFP-750 was rated by Stereophile as an "A" product,
but that's when it's used as a passive preamp - which it does
have a mode to support that.
If you don't need either current or voltage gain from your
preamp - that is your source components have enough power to
drive your power amps - then you may choose the GFP-750 for
that reason.
I need the gain - so I need an active preamp - and ended up
going for the Bryston BP-25.
Dr. Gregory Greenman
Physicist
I was considering the same choice you are a few years ago.
The Adcom GFP-750 was rated by Stereophile as an "A" product,
but that's when it's used as a passive preamp - which it does
have a mode to support that.
If you don't need either current or voltage gain from your
preamp - that is your source components have enough power to
drive your power amps - then you may choose the GFP-750 for
that reason.
I need the gain - so I need an active preamp - and ended up
going for the Bryston BP-25.
Dr. Gregory Greenman
Physicist