06-16-2008, 06:03 PM
I agree, I think it has something to do with a Muzak/intercom system. It has two mic inputs, switches labeled "Overload Indicator"; "Talk/Listen"; "Monitor Volume", "Master"-(Off-Normal-Emg); "Compensator"(Min Bass, Normal, Min Treb, (unnamed position)); "Volume", "Off-On" and "Selector"-(L3,L2,L1,S,R,P,M1,M2,M3,M4,M5).
The 25 switches are each labeled "S-Off-On"
The 25 switches are each labeled "S-Off-On"