Harmonic Generator Expander

The expander module RS375 for the polyphonic harmonic generator RS370 is very recommended if you want to use the capabilities of additive synthesis. It allows you for controlling up to 24 harmonics in realtime via control voltages and 16 potentiometers for direct control. Alternately you can use it for control of envelope parameters.

16 potentiometers for direct control of the level of 16 harmonics. Depending on the mode chosen in menu 2.5 the first ten potentiometers can be used to control the parameters of the multistage envelope: times and partially the levels of attack, slope 1, slope 2, slope 3, sustain and release.

In addition you´ll find four CV inputs for controlling a number of parameters and four Controller CV outputs. The latter make sense when you use the PHG as a MIDI interface and you want to output MIDI controllers as CVs.

The expander connects internally to the RS370.


  • 70 mA +12V
  • ? mA -12V
  • 0 mA 5V
  • 75 mm deep
  • Ø 4.00 (1 Votes) Average Rating

This Module is currently available.

$570 Price in € submitted Apr 20th 2013, 18:22 by silikon | last Change Apr 22nd 2018, 22:10 by xtront