User Manual

56 Calibrating the Prophet-6 Dave Smith Instruments
Calibrating the Prophet-6
The Prophet-6 is calibrated at the factory. Controls such as the pitch and
mod wheels shouldn’t require re-calibration. However, because its oscil-
lators and lters 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 rst time you use the Prophet-6, please run its built-in oscillator and
lter 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 Prophet-6 learns the range of temperatures at your location and
will keep itself in tune over this range.
Later, if you use the Prophet-6 in a different environment that is measur-
ably warmer or cooler (on stage, in an air-conditioned studio, and so on)
run the calibration procedure again.
To calibrate the oscillators and lters:
1. Hold down the preset button and press 0.
2. The front panel LEDs and display begin ashing as the Prophet-6
performs its auto-calibration procedure. Don’t turn off the power while
it’s doing this.
3. When nished, the front panel controls will return to normal and you
can play the Prophet-6 again.