Adcom GFA 555 and a Nak PA-7...that's a blast from the past ! We were selling both of those brands w-a-y back in the early 1990's when I was running the Harvey Electronics chain of audio stores in the NYC/NJ area ! We sold a ton of the Adcom, fewer of the Nak as it was pretty expensive and though built well some people felt it was a little lean sounding...I think Nelson Pass may have had a hand in the design of that but not certain...
Using Adcom GFA-555s as monoblocks to power magnepan 3.3s in active biamp
Yeah, a long title but it says it all. Presently I have my rebuilt Magnepan 3.3rs actively biamped through a Marchand active crossover, then using 2 stereo amps to power bass and mid/treble respectively.
I am considering taking two Adcom GFA-555s and bridging them and using one each to power the bass panels of the maggies.
Since the Magnepans are 4 ohm rated, however it's only the bass panels I'd be powering, what are your thoughts on stability?
Appreciate the help. Don't need suggestions on "selling all my amps and buying one bigger one" - I have a lot of different amp options but am a tinkerer and want to see if the power of a bridged adcom would be good to control the bass panels.