I just saw this thread get new life. I have an HT2, love it. There are 2 5 pin female sockets inside for the proprietary cabinets which have disappeared. I had mine hooked up to a Leslie 720 like andy said, and it was really really nice. I'm not a theatre organist but I like to play standards and jazz on it. The 2 channels of the leslie handle it perfectly. I have that users manual that's on the web but haven't been able to find a service manual either. I bought it for the case, what a great, sort of, smaller, case for a console organ. I like the pedalboard also, a little abbreviated but very nice. The organ sounds a whole lot better thru the leslie if for nothing else than getting the sound away from the player a little.
Jesse
Jesse
SF, CA
Portland, OR
Wicks 2/3, Ahlborn Galanti/Classic Organ Works 2/40, Baldwin HT2, H Klop Bentside Spinet