GAH! You interrupted my perfectly good triple post attempt!!! Well, I'll have to make up for it with TWO DOUBLE POSTS in the same thread!!! I guess that's like doing two double axels in a figure skating routine when you botch a triple salchow.

Anyways.

Well, since you're in Oz, you probably don't want to go buying all kinds of new gear, since from what I've heard on this site, musical equipment is pretty expensive to acquire. Unless you're independently wealthy.

The "gain" knob is your "volume" knob. Doc will kill me over this, since gain and volume aren't the same thing, but basically, turning up that knob will increase your volume. So, you have a "gain" knob for each channel, and one "master gain" knob which will control all 4 channels out. That seems to be what you're looking for.