Multiband Expander is a Multiband expander that is dependent on the program material.

How it works:

• The audio signal is split in to five different bands.
• Each band has an expander across it.
• The expanders increase the input signals of each band depending on the audio level and frequency content of each band. The variable ratio of expansion is set by the expansion controls.
• Each of the bands has high and low pass filters. These are not so much for effect but to allow small tweaks in the program material.
• The limits on each band are there to just keep the outputs in check as expansion of the signals can be very large.
• Auto buttons on each band set the ratio automatically from the program material.
• A good input level is useful in this mode.

In effect what you have is a five-band, program dependent dynamic EQ.