Early units (before serial number 019388):
1 x stereo fader used for LR
AI8117 x8 mono (WHITE)
AI8118 x2 stereo (BLUE)
AI8118 x1 stereo FX (YELLOW)
AI8117 x2 FB1 / FB2 mono (BLACK)
AI8118 x1 stereo LR (RED)
Units with serial number 019388 and higher:
2 x mono faders used for L and R
AI8117 x8 mono (WHITE)
AI8118 x2 stereo (BLUE)
AI8118 x1 stereo FX (YELLOW)
AI8117 x2 FB1 / FB2 / mono / (BLACK)
AI8117 x2 LR / mono (RED)