Bill Coleman wrote: > There's not a huge difference between 50 watts and 200 watts. That's > only a single S-unit. -------------- Well, that depends on how you figure a single S unit. By definition, ( at least in my manuals ) a single S unit is a doubling of power. Therefore to go from 50 to 200 watts would be 2 S units. Still, Bill's advice is right on the money. 73 Ed