Surround Compressor’s LFE section provides the following parameters.

LFE parameters
Ratio knob and field: Set the compression ratio for the LFE channel.
Knee knob and field: Set the knee for the LFE channel.
Attack knob and field: Set the attack time for the LFE channel.
Release knob and field: Set the release time for the LFE channel.
Auto button: Turn on to automatically adjust the release time to the audio signal.
Threshold knob and field: Set the threshold for the limiter on the LFE channel.
Limiter button: Turn limiting on or off for the LFE channel.