Features:
All controls are marked +/- 1 to 6 in the playful Devil spirit of the concept
Treble and bass shelf +/-18db - treble is set to 12k while Bass is selectable 50 and 110hz
HI and LO Mid +/-18db with hi and lo Q switching. Inductor based english style with 7 selections per band
Hi Mid - 8k2, 6k8, 5k6, 4k7, 3k3, 2k7, 1k2
Lo Mid - 820, 560, 470, 390, 330, 270, 220
Three position filter. 47, 82, and 150hz
Hardwire bypass
Will run without problem on any 500 series rack and PSU