by peter roest » 13 Nov 2013, 21:35
Handling an amp with gain and mastercontrol (like AC 15CC.. , AC30) Fender etc:
1. Getting clean sound: master high and gain low 1 or 2 or more, depending wished speaker volume.
2. Getting distorsion : master low 1or 2 or higher and gain high, depending speaker volume/distorsion.
Gain control pot. is positioned after the first valve step (preamp).
Mastercontrolpot, is positioned directly before the poweramp. In Vox amps the mastercontrolpot is positioned in the poweramp between the push-pull valve (ECC83) and the 2 or 4 EL84 valves.
Peter