Q181EB
Expression Block Controller
Feb 2014
The Expression Block controller produces a voltage as you press the block,
Q181EB
similar to the Ondes Martenot and other instruments. Perfect for controlling am-
plitude as you play notes on the keyboard, to control filter frequency, or other
parameters in the synthesizer system.
The Expression Block controller uses our standardized Q181 single-channel
Controller Interface module providing an Auto Gate, Switch Gate and a voltage
output range switch.
The module can be mounted in a Box-style cabinet next to your keyboard con-
troller, or in a synthesizer cabinet just like any other module.
An Auto Gate signal is automatically created as the block is pressed. This gate
can be used to trigger sequencers and envelope generators.
A switch at the bottom of the block's travel activates the Switch Gate signal for
triggering devices also.
A 3-color LED illuminates the acrylic block and may be programmed to change
colors as it moves or as the Auto Gate is activated.
Q181EB Expression Block Specifications
Panel Size: 2.125"w x 8.75"h. (single-space)
Block: Acrylic. .75"w x .75" high, 2.625" long
Block Travel: .75", 15 degrees
Voltage Output: Selectable range - 5V, 2V, 4/12V
Auto Gate Output: 5V, adjustable position activation
Switch Gate Output: 5V, activated at full-down
LED Colors: 3 primary colors (Red, Green, Blue)
LED Control: Forward, Reverse, Power, or Auto Gate - user-configurable
Power: +15V@50ma, -15V@50ma, +5V@50ma
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