Triple Bipolar VCA

£185.00 (£154.17 ex VAT)

3-Channel Bipolar VCA with Mix Output

Out of stock

Join the waitlist to be emailed when this product becomes available

SKU: triple-bipolar-vca Categories: , , , , , ,


Introducing the WMD Triple Bipolar VCA, the input side expansion for our Phase Displacement Oscillator. This module provides dedicated inverting/ polarizing/ bipolar amplitude modulating inputs normalized to the Phase Modulation inputs on the PDO.

A bipolar VCA is like a normal VCA when operated with positive control voltage. But when using a negative control voltage, the output will swing back through zero amplitude and the output will be inverted. This produces deeper modulation than a normal VCA.

The Triple Bipolar VCA is also designed to be used as a standalone module. It does not require the PDO to operate.


  • Three Bipolar VCAs
  • Normalized connections to PDO
  • Linear Response
  • Bipolar Attenuator for CV
  • Mix Output Sums All Three VCAs
  • Bi-color Signal LEDs
  • “-” Input for Mix Through Zero

Width: 8hp
Depth: Skiffable
Power: 80mA @ +12V @ / 75mA @ -12V

WMD PDO mk.2 + Triple Bipolar VCA by Matttech Modular Demos