1979 SP-1 Spectrum near mint - Very early, Clear Switch, Momentary LED, Silver Screw with original box. $OLD 1979 SG-1 Slow Gear 9/10 no box very very clean. $375
Hi jfromel,I'm interested in your SP-1, but as per the FS rules on Bossarea you are supposed to have at least 10 posts. If it's OK with Dr. Bob and Bossarea you can PM me. Thanks!
I think this would constitute post # 10, I have been lurking for years but don't post much.
The SP-1 is a not really a parametric but more of a frequency emphasiser. The Spectrum control changes the frequency from 500hz to 5khz. Balance is a blend control from normal to effect when the pedal is engaged. It's more like a fixed wah than a single band parametric.