Hi! What can i say...it´s an old analog mixerboard for studios. Soundcraft that use to make them stoped the production in the late 1980´s....
The powersupply provide the mixerboard with, 48, 17, and a few more volts . I need a new one, thats for surtain.
They have more info on www.soundcraft.com
Thanks!
/mASEN