Wild Gear Herder
Platinum Supporting Member
I'm not sure I've seen this discussed here: what was the purpose of splitting the chassis into power amp and pre-amp sections? I've seen references in old Supro catalogs which seemed to imply that this translated to quieter performance...which has not been my experience with my three old Valco amps with split chassis, LOL. Of course, they are old and there are many other factors at play. But...anyone know why these sorts of designs were used for a while back in the past?