andy474x
Knows the Drill
Many folks find that, especially on the drive channel of the Custom amps, the bass is quite strong - although yours being a 1x12 combo, and at 20 watts, that's probably the best configuration for taming that issue. I usually set my bass around 9-10:00 on the lead channel. Most of my other tone controls, on both channels, I'm usually running around 1-2:00.
The mid shift on the lead channel adds low mids, basically if you want to fatten up the sound of that channel. And the depth push/pull on the presence control will fatten up the whole amp if you find it too lean.
Just a couple other notes, the lead channel loves to be hit with boost pedals, it'll let the character of a guitar and/or boost pedal really come through to shape the tone. If you're into swapping speakers, my recommendation for a single 12" is a Creamback M.
The mid shift on the lead channel adds low mids, basically if you want to fatten up the sound of that channel. And the depth push/pull on the presence control will fatten up the whole amp if you find it too lean.
Just a couple other notes, the lead channel loves to be hit with boost pedals, it'll let the character of a guitar and/or boost pedal really come through to shape the tone. If you're into swapping speakers, my recommendation for a single 12" is a Creamback M.