Selling my Doepfer A-135-1 QVCA / VCMIX, a versatile quad linear VCA and voltage-controlled mixer for Eurorack systems. This module is in excellent condition, fully functional, and has been lightly used in a smoke-free studio.

The A-135-1 is one of those essential utility modules that can serve multiple roles in a modular system. Use it as four independent VCAs, a voltage-controlled mixer, or a combination of both. It’s perfect for controlling audio levels, modulation depths, submixes, and complex signal routing.

Key Features

• Four linear VCAs in a single module
• Functions as both a quad VCA and voltage-controlled mixer
• Individual CV control for each channel
• Mix output for combining multiple signals
• Great for audio signals, CV processing, and modulation control
• Clean, transparent signal path
• Classic Doepfer build quality and reliability

Condition

• Excellent condition with minimal signs of use
• Fully tested and working perfectly
• Clean panel, knobs, and jacks
• Used only in a smoke-free studio environment

Included

• Doepfer A-135-1 module
• Eurorack ribbon power cable
• Mounting screws

A fantastic utility module for any Eurorack system. Whether you’re building your first rack or expanding a larger setup, it’s hard to have too many VCAs, and the added mixer functionality makes this an especially useful module to keep around.

Feel free to reach out with any questions or if you’d like additional photos. Thanks for looking!