User Manual

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Pro 3 User’s Guide
Chapter 4: Using the Pro 3 with External Devices
If pitch tracking between the Pro 3’s keyboard and the external
oscillator module isn’t perfect, you may need to scale the Pro 3’s
CV output.
To scale the Pro 3’s CV Out:
1. Play the note A = 440 on the Pro 3 keyboard.
2. Tune the external modular oscillator to the same pitch.
3. Play different octaves to check for pitch consistency across the key
range.
4. If the pitch scaling isn’t perfect, press the global button and in the
display, select cv out scale for the CV output that you’re using (in the
previous example, cv 1 out ).
5. Use Soft Knob 3 to tweak the scaling while you play different octaves
across the keyboard. Keep adjusting until scaling across the entire key
range is correct.
More About Pro 3’s CV Outputs
The Pro 3 is exible when it comes to Control Voltages, and it can be
congured to accurately interact with virtually all Eurorack modules.
The Pro 3’s CV outputs have a range of 0 to 10v. Since the range is
0-10v, Middle C is sent from the CV output at 5v. This allows the CV out
to track over a 10 octave range, from 0 to 10v.
There is no standard input voltage range for Eurorack modules. Some
modules and external synthesizers have a 10v input range, while others
have a 5v input range. Using the cv offset parameter in the global
menu, you can congure the Pro 3 as necessary to work correctly with
your specic module.
You can also assign the keyboard and Sequencer of the Pro 3 to transmit
CV data at 1v/octave by assigning note number to modulate cv out (1-4)
with an amount of 127 in the Mod Matrix.
For example, if the Pro 3 sends CV at 1v/octave to an oscillator that has
a maximum input range of 5v, sending Middle C from the Pro 3 will
result in the oscillator playing at its highest frequency.