I put the info here on this machine:
Model 500
Ultimate Fat Channel 5 analog synth

It has 5 channels, EACH HAS controls the Following:

- Sensitivity
- Osc decay
- Noise decay
- Sweep
- Pitch
- Noise / osc balance
- Pan
- Volume
- Click button

It HAS the Following I / O's:

5 trig ins
footswitch in,
5 audio outs,
A stereo mix out,
1 stereo headphones out.

Sensitivity control
Oscillate decay
Noise Decay
Sweep
Pitch
Wave form shape

osc / noise balance
master volume and a pan control
1 / 4 "ins and outs directly on EACH channel allowing for easy patching to Other Units DF or DF as well as effects units Any Other FX Utilizing standard 1 / 4"