3 manuals, Swell, great and choir. Plus pedals MIdi digital input output and throughput for all keyboards and stops. Couplers for most combinations, operated by hand or by pistons, Three manuals - Great, Swell and Choir, plus 32 note (AGO) pedalboard. Wide range of stops (from 1' to 32'), and couplers activated by traditional stop controls, thumb pistons, and toe pistons. Three expression pedals - choir, swell and crescendo. Six programmable presets for each division and six for the whole organ. In addition there are memory banks, allowing for each of six complete organ preset combinations to be stored. Other features include chimes, transposer, headphone socket, audio output and input, pitch control, automatic pedal, 'tutti' control (full organ) , tremolo speed and depth. A variety of outputs allow for external amplifier/speakers combinations. The midi function allows input (e.g. synthesizers), output (to other midi devices) and throughput (both together). Some organs with these features have been adapted for Hauptwerk purposes. (see www.hauptwerk.com) The organ was sold in the early 1990s, and is in good condition. Must sell. Open to offers.