RPM-1 Tube rotary speaker simulator.
I have ordered a used one . If you dont know what it does it is a rack unit that works like a Leslie. with Right and left outs for the horn part and a center channel for the rotor part. My Question is two parts. 1 can a digitech FS3X work with it and if not what foot switch will. 2 why was this type of effect no longer made. Oh I use three amps and have not been able to find any other effect pedal or rack that will do this all the others only have Left and right outs no center even the high dollar ones.