Mac 550 DMX Channels Extended Mode
| 1 : | Strobe/Control |
| 2 : | Intensity |
| 3 : | Intensity Fine |
| 4 : | Color 1 |
| 5 : | Color 1 Fine |
| 6 : | Color 2 |
| 7 : | Color 2 Fine |
| 8 : | Gobo 1 |
| 9 : | Gobo 1 Rotate/Index |
| 10 : | Gobo 1 Rotate/Index Fine |
| 11 : | Gobo 2 |
| 12 : | Gobo/Color Macros |
| 13 : | Animation Wheel |
| 14 : | Animation Wheel Index/Rotate |
| 15 : | Prism |
| 16 : | Iris |
| 17 : | Iris Fine |
| 18 : | Focus |
| 19 : | Focus Fine |
| 20 : | Zoom |
| 21: | Zoom Fine |
| 22: | Pan |
| 23: | Pan Fine |
| 24 : | Tilt |
| 25 : | Tilt Fine |
| 26 : | Pan/Tilt Speed |
| 27 : | Effects Speed |