quick-start guide for the version-1 prototype
McGrath Mini Quick Start Plug guitar cable and power cable into the back. Flip all the switches into the "on" or up positions, except for the fx switch: keep this one down. (back view) 5 switches on, 1 switch off ( fx ). Since this is a tube amp, you'll have to wait a bit for the tubes to warm up, before you can get any sound (around 15-30 seconds). When the amp is warmed up, the power LED changes from red to purple. Start with all the knobs pointing straight up ("12-oclock position"), except vol : start with this at minimum (full CCW). (front view) Strum a chord on the guitar while gradually turning up vol until the volume is good. The most important knobs other than vol , in setting the tone of the amp, are the two gain knobs. Experiment with these. More gain leads to "dirty" or distorted tones; reduce gain for "clean" tones. Dirty tone: Semi-clean tone: Experiment with the rest of the knobs, and with different settings for the switc...