I compare an original 1959 Fender Bassman to a 1967 Fender Bassman though the same 1971 Marshall 1960A 4x12 Speaker cabinet using a 2008 Gibson Les Paul R9.
Gear:
1959 Fender Bassman Tweed 5F6A
1967 Fender Bassman Blackface AB165
2008 Gibson Les Paul R9 with a Seymour Duncan Alnico 2 Pro in the bridge.
SM57 and MD421U5 close mics and M160 room mic