harrylavo - from page 235.
I spent a couple hours this afternoon comparing the Benchmark AHB-2 to your recommended Adcom GFA555 II. Both amps are bridged, running the same CS1.5 (stock) in mono. I must say that the Adcom acquits itself nicely. The sonic signature of the two amps is quite similar as is the bass / treble balance. The Adcom presents slightly more upper end and a rounder low end. The AHB has a smoother texture. For the short money these used Adcoms command, it would indeed be hard to beat.
I’ll report on the 555 II vs the 555 (straight) in a day or two.
The reviewers loved them both and they sold boatloads in the 1990s.