Ive seen posts about mark III DRG's... What does DRG stand for? What makes it different from any other mark III? Just trying to educate myself a little.
Before the Mark IV came out the Mark series could be custom ordered.
On the side of the chassis there is a marking for the options included.
R Reverb
DR Simul-Class/Reverb
DRG Simul-Class/Reverb/GEQ
HR Hunderd Watt/Reverb
HRG
S Sixty Watt
SR
SRG