Explorer voice combined with the lower Solina keyboard (contrabass and cello)
Explorer voice combined with the upper Solina keyboard (viola, violin, trumpet, horn)
Variations
Solina C112s
The manufacturer of Solina series, Eminent B.V., also shipped a home organ model, named Solina C112s (with "Explore I" logo), which included ARP Explorer I.[citation needed][2]
"Up for sale are 3 Solina (ARP) Explorer I front panels. They are part of the very rare Solina C112S organ. ...". See also images: Image 1 shows front panel with three logos: "Solina", "ARP", and "EXPLORER I". Image 6 shows a circuit board with printed pattern logo "ARP" and texts "MADE IN U.S.A.", "(c) 1975 ARP INST".