A note about Sidechain:
Sidechain lets you trigger the compressor using an external source, which is fed into the RMS detector and controls the compression of the input signal. Sidechain may only be used in New (Feed Forward) mode. An external sidechain trigger cannot be used in Old (Feed Back) mode; attempting to do so automatically switches the compressor to New (Feed Forward) mode.
3.3 Link Section
L/R Link
Sets the percentage of linkage between the left and right channels. While in Link mode, each channel is still controlled by its own RMS detector, which prevents loading and slaving from either side.
Range
IND, 50%, 60%,70%,80%,90%,100%
Default
100%
Shape
Adjusts the Shape of the link control voltage mixing. The HP (high pass filter, LP low pass filter eliminating the highs and a combination of both filters creating a band pass filter. the value of this circuit allows the Link control voltage to not include certain frequencies. Different filter combinations can be used, for example, to prevent percussive instruments on one channel from coupling and causing unwanted compression on the other channel.
Range
HP, LP, BP, Off
Default
Off
Waves API 2500 User Manual
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