Roy Grant and Ray Lumley founded Grant Lumley Electronics Limited in the UK in the 70’s. Roy Grant was the tech brains behind Grant Lumley, until they parted company in 1982 and Roy Grant started up Grant Amplifiers in 1983.
Schematic, of the G60 Mk2.
PCB layout, of the G60 Mk2.
G60AMS Mono power amplifier
Schematic, (Dr. Tube).
G60S Stereo integrated amplifier
This is a stereo version of the G60AMS amp, with a phono input and a line stage.
Schematic, (Grant Amplifiers).
Photograph, (Dr. Tube).