yeah, it has a master volume, I have gain at 6, volume at 6 and master about 3, my guitar has tone set to about 8, which is what video said. The amp doesn't have regular marshall settings tho. Instead of tone it has bass, middle, treble, I've turned down bass. Now A nice feature, it has reverb, and the four basic effects built in, it also has crunch and overdrive. Everything is built in. Its not gonna replace a full on tube amp, however it has lots of possibilities. So more volume, less master, more gain?

(btw, not a bad sound, just not as full as your videos.)