As I understand it, this amp is in the Trainwreck family. No mastervolume, you need lots of use of the guitar's volume knob to get different sounds out of it. I've played Trainwreck style amps before they are always LOUD. I was on the Reinhardt site today when I realized that you can order a Jester with Power Scaling (or Scale Valve...). Hmmmm, if this works as well on the Jester as it does on the 18w, then I'm very very interested. Has the Trainwreck finally been tamed?