60 Calibrating the OB-6
Dave Smith Instruments
Calibrating the OB-6
The OB-6 is calibrated at the factory. Controls such as the pitch and mod
wheels shouldn’t require re-calibration. However, because its oscilla-
tors and filters are voltage controlled and can be affected by extremes of
temperature, you may need to use the built-in calibration function to tune
them occasionally.
How and When to Calibrate the Oscillators and Filters
The first time you use the OB-6, please run its built-in oscillator and
filter calibration procedure. Let it warm up for several minutes and come
to its normal operating temperature before doing so.
Repeat the calibration procedure as needed over the next few days of
use. The OB-6 learns the range of temperatures at your location and will
keep itself in tune over this range.
Later, if you use the OB-6 in a different environment that is measurably
warmer or cooler (on stage, in an air-conditioned studio, and so on) run
the calibration procedure again.
To calibrate the oscillators and filters:
1. Hold down the
manual
button and press 0.
2. The front panel LEDs and display begin flashing as the OB-6 performs
its auto-calibration procedure. Don’t turn off the power while it’s doing
this.
3. When finished, the front panel controls will return to normal and you
can play the OB-6 again.
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