The Equalization section is a simple-but-useful "master" EQ in the voice signal path that functions independently for each layer. Its controls are as follows:
Low- Shelving EQ with +/- 15dB and corner frequency of 200 Hz.
Mid- Peaking EQ with +/- 15dB and center frequency of 500 Hz.
High- Shelving EQ with +/- 15dB and corner frequency of 3000 Hz.