Controls
- Drawbar 16'0 to 8 — The 16' drawbar (0 to 8): the sub-octave, one octave below the key; every step is about 3 dB.
- Drawbar 5 1/3'0 to 8 — The 5 1/3' drawbar (0 to 8): the fifth above the 16', which adds a deep, hollow body.
- Drawbar 8'0 to 8 — The 8' drawbar (0 to 8): the fundamental, the pitch of the key.
- Drawbar 4'0 to 8 — The 4' drawbar (0 to 8): one octave above the key.
- Drawbar 2 2/3'0 to 8 — The 2 2/3' drawbar (0 to 8): an octave and a fifth above the key.
- Drawbar 2'0 to 8 — The 2' drawbar (0 to 8): two octaves above the key.
- Drawbar 1 3/5'0 to 8 — The 1 3/5' drawbar (0 to 8): two octaves and a major third above the key.
- Drawbar 1 1/3'0 to 8 — The 1 1/3' drawbar (0 to 8): two octaves and a fifth above the key.
- Drawbar 1'0 to 8 — The 1' drawbar (0 to 8): three octaves above the key; silent while Percussion is on, as on the original instrument.
- PercussionOff / On — Percussion On adds a decaying harmonic to the notes played while no other key is held (single trigger), for the classic jazz attack.
- Perc HarmonicSecond / Third — Which harmonic the percussion plays: Second (the 4', an octave up) or Third (the 2 2/3', an octave and a fifth up).
- Perc DecayFast / Slow — How fast the percussion fades: Fast (about 0.1 s) or Slow (about 0.4 s).
- Perc VolumeNormal / Soft — The percussion's level: Normal or Soft (6 dB lower).
- Key Click0 to 100% — The level of the short click when a key goes down (and a softer one when it comes up), 0 to 100%.
- VibratoOff / V1 / V2 / V3 / C1 / C2 / C3 — The vibrato scanner: V1, V2 and V3 bend the pitch more and more, C1, C2 and C3 mix that with the dry sound for the chorus; Off bypasses it.
- Drive0 to 100% — The preamp's overdrive (0 to 100%), from warm to growling.
- RotaryOff / Slow / Fast / Stop — The built-in rotary speaker: Slow (chorale), Fast (tremolo) or Stop, with the horn and drum speeding up and slowing down like heavy rotors; Off bypasses it. The mod wheel from the middle up switches Slow and Fast.
- Acceleration10 to 400% — How long the rotors take to change speed (10 to 400% of the natural time; the light horn is always quicker than the heavy drum).
- Horn/Drum Balance0 to 100% — The mix of the horn (highs) and the drum (lows) of the rotary speaker; 50% is even.
- Volume−24 to +12 dB — The output level (-24 to +12 dB).
Best uses
- Gospel, soul and blues organ with fast rotary swells on the mod wheel
- Jazz organ: 888 drawbars, third percussion and chorus
- Driven rock organ with key click and a fast rotor
- Soft pads and ballad organ with gentle chorus and the rotor slow
- Reggae skank and pop percussion organ
Properties
An instrument: MIDI in, stereo out, no samples, 16 voices (a 17th key takes the oldest voice, released ones first, after a 1.5 ms fade). Each key sums its nine drawbars as sines at the harmonics 1/2, 3/2, 1, 2, 3, 4, 5, 6 and 8 of its pitch, made from one sine and cosine per key; like tonewheels the harmonics fold back an octave above 5.9 kHz and below 32 Hz. Keys start and stop with 1.5 and 6 ms ramps; velocity does nothing, as on the original. The sum passes the vibrato scanner (a delay swept at 6.9 Hz), the preamp (a soft clipper) and the rotary speaker of NULL Rotary Speaker (an 800 Hz crossover, horn and drum with Doppler and tremolo, two microphones). CC 11 is expression (smoothed), the mod wheel (CC 1) at 64 and up switches the rotor speed, all notes off (CC 123/120) releases every key. Sample-accurate and the same in the JSFX, the GFX version and the VST3/CLAP.
Factory presets
Jazz · Mellow Jazz · Gospel · Rock · Dirty Lead · Blues · Ballad · Full · Reggae Skank · Pop Percussion · Soft Flute · Whistle Top · Chapel · Rotor Brake