1. OUT: 1/4” phone jack output
2. DC IN: 9V DC power input, center pin negative
3. IN: 1/4” phone jack input
4. THRESHOLD: Sets the level at which the compressor engages
5. LEVEL: Adjusts the overall output level
6. RATIO: Adjusts how aggressive the gain is reduced
7. BLEND: Sweeps between wet/dry levels
8. ON: Footswitch toggles effect on/bypass