It sounds great in every channel. I would definitely change the pickups in any Gibson. My Pat Martino came with '57 classics and they sounded muddy, inarticulate and lacked good string/note seperation in chords. I replaced them with Jason Lollar Imperial humbuckers and it made a huge difference. Rectifiers are voiced kind of loose- so if you have a pickup that is inarticulate the amp can sound too loose.
