I compare a Marshall Lead 12 Combo to a Marshall Bass 12 combo using a Fender Stratocaster. EQ settings: Bass=10, Mid=5, Treble=4 (lead) 7(bass). The gain is varied and the volume is always cranked.
1990 Marshall Bass 12 1x10 combo
latte 1980s Marshall Lead 12 1x10 combo
1973 Fender Stratocaster