Doepfer - A-135-2 Mini Quad VCA / Mixer (Silver)

The Doepfer A-135-2 is a compact and versatile four-channel voltage-controlled amplifier and mixer. In just 8HP, it offers four linear VCAs with individual outputs and two mix outputs, making it a flexible tool for audio or control voltage routing and modulation. Each channel provides a manual gain control and a CV input with its own attenuator, allowing detailed dynamic shaping.

It can be used as a:

• Quad VCA

• Dual stereo VCA

• Four-channel audio or CV mixer

• Voltage-controlled quad signal distributor

All inputs and outputs are DC-coupled, making it suitable for both audio and CV processing. Thanks to the Selected and All mix outputs, it fits a wide range of mixing tasks. Internal normalization options allow for distribution of a single signal across all channels for quadraphonic setups or multi-destination control.

• 4-channel linear VCAs with individual outputs

• Manual gain and CV attenuation per channel

• DC-coupled for audio and CV use

• All Out: sums all four channels

• Selected Out: sums channels not patched at individual outs

• Internal normalization between channels

• Compact 8HP width