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