Here's my "Billy Gibbons" Marshall sound.
model = UK80s
gain = dimed
volume = anywhere past 12:00
treble = 1:00
middle = 1:00
bass = 1:00
master volume = anywhere past 12:00
variable volume on back of amp = at 75%
effects = compression with knob set at about 12:00 or 2:00
The compressor accentuates the pumping tone of the UK80s model. If you listen to Billy's sound it pumps out off the fret board like that. Not so much high gain preamp sound...but more air moving instead.
All my other amps settings are pretty much set up the same. Even when I'm playing the clean models and high gain models. All my tone knobs are set to 1:00 as I feel thats an optimum tone setting for almost all the models.
Guitars/Bass - MIM Fender Classic 50s Strat, MIM Fender Standard Strat, Squier Classic Vibe 50s Tele, Gibson Les Paul Studio, Epi '56 Gold Top Les Paul, Martin DSR acoustic, Sigma Martin Auditorium electric/acoustic, Squier Jazz Bass.
Amps/Cabinets/Modelers - Model 2558 50 watt Marshall Silver Anniversary Jubilee combo w/ Celestion Vintage 30s, 4x12 Marshall cabinet w/25 watt Greenback Celestions, Fender Blues Junior w/ a couple of Billm mods, Line 6 POD 2.0, Roland Micro Cube
Pedals/Effects - Cry Baby Classic Wah, Boss TU-2, Boss NS-2, Boss RC-2 Loop Station, Ross Compressor, MXR Micro Amp, Danelectro FAB Echo, Danelectro FAB Chorus, Danelectro Chicken Salad, Marshall Guv'nor Plus, Marshall Echohead, Duhvoodooman's Zonkin' Yellow Screamer, Digitech Digiverb, Digitech Bad Monkey, Dunlop Fuzz Face, Homemade Loop Bypass pedal, Duhvoodooman's Sonic Tonic (Maxon SD-9 clone +), Voodoo Labs Superfuzz