Drawbars - Studiologic numa compact 2 User Manual

Organ Model
(Numa Compact 2x)

Drawbars

Drawbars are a characteristic trait of a tone wheel organ, the-
refore we'll explore them first; a Tonewheel Organ sound can
be made of nine sine frequencies and each drawbar repre-
sents a harmonic of the scale related to the 8' stop of a pipe
organ (drawbar 3) which is also called "native pitch".
Drawbar 1 2 3 4 5 6 7 8 9 correspond to Feet 16' 5 1/3' 8' 4' 2
2/3' 2' 1 3/5' 1 1/3' 1' .
The labelling of the drawbars in feet derives from pipe or-
gans, where it represents the length of a reference pipe that
plays the note C is exactly 8 feet long (=2,4m).
Note: the first two Sliders are made of a different color to
show that they play "below" the standard 8' of a Piano, as it
also was on Vintage Tone wheel organs, where the first two
Drawbars were Brown, the Even harmonics are were White
and the Odd harmonics were black. In the NC2x they main-
ly show that they are active on all sounds as controls of the
Synth parameters, while the other Sliders are enabled only
for the Synth Bank sounds.
When a drawbar is pushed all the way in, its harmonic is ab-
sent from the timbre, while the maximum volume for the
drawbar is achieved when you pull it all the way down and
you see the digit 8 on the Display, on a pop-up display that
appears any time you move a Drawbar/Slider. The drawbars
simply adjust the levels among them and you can change
and hear the timbre while keys are pressed.
With your NUMA Compact 2x you can play two different tim-
bres at the same time, on the Upper and Lower sections, in
Layer or Split mode as all other Sounds and the related Draw-
bars setting is shown on the Display according to the posi-
tion of the Focus (selection of Upper or Lower buttons) and
moving the Drawbars when the focus is on the selected part.
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Numa Compact 2/2x by Studiologic