I thought Sunn only used the name "Orion" with their first short lived solid-state series of amplifiers... sometime like 1969 or there abouts. All I ever saw was a flyer/catalog... What kind of "effects" are provided by this??? If it is close to the size of a marshall head... is it possible that it could be an Orion head? As I recall, the head was supposed to be the preamp circuitry and the power amp was inside the speaker cabinets.
