I've had the RG80es head version. Great amp.
Played through that thing for about 7 yrs. IMO, those Randalls are the best sounding SS amps made.
It used to sit on top of a Randall XL 4x12 w/ Vintage 30's. The last couple of years that I had it, I paired it up w/ this old Fender cab. I put V30's in it too. That Randall loved those speakers.