8-Band Graphic EQ: The Custom 1 and Custom 2 EQ modes allow you to manually adjust the level (+/- 12dB) of each band of the headunit's 8-band graphic equalizer (40Hz, 80Hz, 200Hz, 400Hz, 1kHz, 2.5kHz, 8kHz, and10kHz).
You can only alter those bands. Cant adjust slopes though. Also no time alignment.