Hi.
Valvestate....Metal....This brings up some memories.
Back in the day when I was doing monitors in a club in our capitol, there once was this Metal Marathon.
IIRC 15 "metal" bands, 30 min slot each, 5 min "setup time" between the sets.
EVERY ****ING SINGLE ONE of the so called guitarist wanted to use THEIR OWN...yep, You guessed correctly, Marshall VALVESTATE head.
Now don't get me wrong, it's a decent amp for bedroom practice, but on rehearsal or God forbid, on stage, it's just horrible.
Each of the guitarists also wanted to use THEIR OWN cab. Most of them 4*12" from the valvestate line too.
Since we quickly found out that the sound of each and every one of the guitarists were virtually the same buzz, we let them have 5 heads on each side of the drum riser and two cabs on each side for asthetics (and providing something to put a few amps onto

). Fortunately there was a few 1960 cabs there too so we plainly told them to use those and to stack the remaining cabs...well You know where.
Changing the amps was a breeze compared with the whiny drummers who insisted on setting up the whole arsenal of cymbals over and over again. They were plainly told beforehand, that 35min is all they'll get, not a second more. A few more experienced ones had their cymbals ant the snare ready on the stands and could play the whole set, most of them were cut short as there usually was only a minute left before the last tune.
The Valvestates, which by the way have a 12AX7 in the signal path, sounded horrible, absolutely horrible. The FOH guy came over several times to check the mic placement and the lines as the sound never changed, just this thin buzz, like a bumble-bee in a jar. Only amplified.
Break the Valvestate so he has to use the JCM800. Not the best Marshall by any stretch, but a major improvement over a Valvestate.
Regards
Sam