Hammond 3500 Leslie Speaker - Black

11-PIN POWER REMOTE SWITCH] when the console is attached with an 11-pin cable. Stationary Out When these models are connected via the 11-pin plug to a Hammond Stage Keyboard such as the SkPRO, the Piano, Ensemble, and Mono Synth Voices appear here in stereo, ready to be fed to a keyboard amp or P.A. System. For Hammond Organs, the non-Leslie sound appears here. Rotor Speeds The rear nameplate can be easily accessed by removing the two thumbscrews. Underneath the nameplate are the controls to independently adjust the rise and fall times and the slow and fast speeds of the treble and bass rotors.