 Optional Cymbal and Hi-Hat modules were also available with open and closed hi-hats controlled from an external pedal.There was also a mixer section with individual volume control for each module (only into the mono/stereo output) and controls for pad sensitivity.Outputs were balanced XLRs for live and studio applications (pins 1 & 2 ground, pin 3 hot), however the XLR pad input wiring on the SDS-V was unconventional - the User Manual states that pin 2 is hot and pins 1 & 3 are ground.