Jimmy, just following up on the Walter Woods discussion under the Skylark thread. You were correct, there is a switch that blends the two channels, which allows me to use both speaker cabs with a mono instrument, perfect!
Those amps are fascinating, there is a lot going on with the two channels, blending, eq, boost/bright switches, variance, and more. It sounds great with guitar, but when I plugged my bass onto it the tone was clear, smooth, and mellow, really very nice!