Akai MPC User Manual page 206

Compressors
A compressor is an effect that changes the dynamic range of a signal by automatically reducing its gain.
Compressor Master
This is the most transparent compressor, able to perform substantial volume adjustments without
artifacts.
Parameter
Dry/Wet
Attack
Release
Threshold
Ratio
Oldskool
Output
Value Range
0 (dry) – 100 (wet)
0 – 100
0 – 100
-50 – 0 dB
1 – 20
Off, On
-6 – 24 dB
Default Value
100
50
50
0
1
Off
0
206
Q-Link Knob Number
Q13
Q9
Q5
Q1
Q14
Q10
Q6