the RR tribute Marshalls do sound good, but like the old non-master volume Marshalls, it's still gonna have to be cranked somewhat to get plenty of gain (the RR amp doesn't have a MV either).
it's a pretty crude 'mod' actually and a bit of a strange one since Marshall were already making their 2204/2203 amps at the time when they modded Randy's white 1959 head. all they've done is to cascade the normal and brilliant channels into each other, but you can't argue with the results - it sounds great. I'd personally have liked to see a (defeatable) master volume on the amp so you can balance the preamp and poweramp gain without having to crank it.
that said, it's a niche amp that does the job well - if only they'd got the cab right :roll: