If I had to record a rock record using only one amp, it would be my 1966 JTM 45. Hands down!
Here I have a drum loop, playing via BFD2. I recorded and looped the bass part with my '78 P Bass. I cut three guitar takes. Two rhythm tracks, hard panned left and right. And the lead track.
Each track has 3 mics. An SM57 and a Royer R-122 up close. And the U87 about 7 feet back, in figure of 8 pattern. This mic runs through the Bricasti reverb, which is set 100% wet.
The lead is one take, I cut out the crappy parts. LOL
The guitar is my R7 goldtop loaded with Throbak SLE-101 pickups.
For rhythm parts I had the gain (VOLUME I) at 6. On the lead I turned it up to 9.