I had to set up all amplifiers in my last band (and I was the singer).
At first our lead guitar player played my rig so I dialed in all sounds.
Our second guitarist played a very similar sound so no problem there.
Than our lead guitarist changed amps, had to change gain, bass, mids, treble...
he had a really distorted scooped sound because he liked it at home-like 90% of guitar players out there.
Our bass player just wanted me to say what sounds best for him so everything was fine.
Warwick Corvette $$ into SWR 2x10 combo, worked great and our drummer went with me to
a music store to find a new snare.
Worked great in that band, but in another band I played it really sucked.
Guitar player loved his sound (Boss HM into Marshall MG) with his crappy 150$ B.C.Rich copy.
It was like the worst guitar sound I heard in my life-and he loved it...
Never rehearsed with them again, but they played a show with us.
He was able to use my rig (Digitech 2101 into Engl poweramp), a Laney GH100 (with Tube screamer in front),
a modded Marshall or an Engl Powerball, but he just used his pedal
in front of his Marshall MG-yeah, great sound
uke: