I have been bitchn'& moanin about the wall voltage being too weak at clubs for some time now. I wanted a Furman 1215 power regulator, but the wall ampers have to be there or it won't get 120v anyway. Finally our drummer (owns the PA and band leader) brought a breaker box and an electric stove cord that plugs right into a 220 outlet. The box splits the juice into 2 x 110 somehow. But the power I had tonight was unbelieveable!!! My amp was only on 12:00 gain, and 9:30 master. I could hear every note with clarity, punch,and richness without having to rip my fingers up from playing too hard. Man, this is the way to go. You have to try it if you are struggling to hear yourself. Me Soooo Happy!!!!