Behringer PRO-1 Quick Start Guide

page 3 of 6
985-40000-01090 Rev.A
2021-02-16
Condential, for internal use only. Not to be reproduced.
page 3 of 6
Synthesizers and Samplers
PRO -1
Oscillator Calibration using a guitar tuner:
Figure 1
Calibration Procedure
OSCA Calibration
Turn on the OSCA SAW switch.
The positions of knobs and switches are shown in red on Figure 1.
On your external keyboard, press the A1 key and adjust the OSCA FREQUENCY on the front panel to zero while
observing the tuner display. A1 should be 55 Hz.
Connect a guitar tuner to the rear panel main ¼" output.
Note that a pitch within 2 to 3 cents of the target frequency should be ne.
Please pay special attention to the FREQUENCY knobs of Oscillator A and B.

Behringer PRO-1 Specifications

General

Type	Analog
Polyphony	Monophonic
Oscillators	2 VCOs
LFO	1 LFO
Sequencer	No
Arpeggiator	No
CV/Gate	Yes
USB	Yes
Waveforms	Pulse
Keyboard	No
MIDI	In/Out/Thru
Filter	24 dB/oct 4-Pole Low-Pass Filter