Interesting interview, thanks for posting it.
Geoff mentioned they were using Altec 604E which wasn't mentioned in the book, that was a detail of interest.
He did make a comment in the book, how spectacular the speakers sounded when he first hired into EMI. I was always under the assumption these were crappy old mono speakers, 1940's left over, but obviously that was a wrong perception of a black and white picture. The cabinets weren't made to look appeasing to the eye, more like a science laboratory piece.
Tube mixing board, Nueman mics, and the room.... ALTEC 604E's...or 605 like this picture is stamped...either way, pretty nice sounding speakers I assume. very costly on ebay!
I still think the bass on Sgt. Pepper is amazingly done, so melodic , musical. Bass was put on last and made the loudest.
He mentions a c12 mic on the bass, I assume its a Telefunken... $8500 microphone! yikes
Geoff mentions U47 a lot in the book, I looked it up, 1947 Neumann introduced his design, soon replacing the RCA 44/77's...etc..a "grounding breaking" microphone apparently.
and the wall pad absorbers on the walls of Abbey Road were "stuffed with seaweed", he mentioned in the book that's odd isn't it?