A-135-4C Quad Envelope Follower

Doepfer A-135-4C Quad Envelope Follower: Audio-Controlled CV Generator

The A-135-4C is a quad envelope follower module that converts four individual audio inputs into four corresponding CV outputs. It’s a great tool for deriving modulation from dynamic audio signals such as drums, voices, or rhythmic loops.

Key Features:

  • Four independent envelope followers

  • Converts amplitude of incoming audio to control voltage

  • Perfect for expressive, audio-reactive patches

  • Ultra-compact at just 4 HP wide

  • Designed to complement the A-135-4 Performance Mixer series

Technical Specifications:

  • Width: 4 HP

  • Power consumption: approx. +50 mA / -10 mA

  • Inputs: 4x audio

  • Outputs: 4x envelope CV

  • Format: Eurorack (3U)

Add dynamic modulation possibilities to your Eurorack system with the A-135-4C.

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