Befaco Hexmix VCA
Six-channel VCA mixer with variable response curves
14 HP Eurorack module
The Hex Mix VCA is a compact six-channel voltage controlled amplifier with a continuously variable response curve that morphs between exponential, linear, and logarithmic modes per channel. This makes it a powerful tool for shaping dynamics, creating percussive transients, and sculpting complex modulation signals. It doubles as a six-channel mixer with normalled outputs summed at channel six.
Features
- Six independent VCA channels each with variable response curve from exponential through linear to logarithmic
- Per-channel Response Knob morphs continuously between exponential, linear, and logarithmic curves
- Per-channel Volume Knob for manual gain control
- Per-channel CV input expecting 0-8V for envelope or modulation control
- Channel inputs accept +/-10V signals
- Channel outputs up to +/-8V
- All six channels normalled to a master mix bus summed at channel 6 output
- Mix Enable Switch to activate or deactivate the six-channel summing bus
- Any channel can be extracted from the mix by patching its individual output without affecting other channels
- Expansion Port on rear for connection to Befaco Hexmixer module
- Channel 6 can operate standalone when connected to Hexmixer via Expansion Port
- 14HP compact form factor
Controls & Jacks (30)
- Ch 1 In
- Ch 1 Level
- Ch 1 Response
- Ch 1 CV
- Ch 1 Out
- Ch 2 In
- Ch 2 Level
- Ch 2 Response
- Ch 2 CV
- Ch 2 Out
- Ch 3 In
- Ch 3 Level
- Ch 3 Response
- Ch 3 CV
- Ch 3 Out
- Ch 4 In
- Ch 4 Level
- Ch 4 Response
- Ch 4 CV
- Ch 4 Out
- Ch 5 In
- Ch 5 Level
- Ch 5 Response
- Ch 5 CV
- Ch 5 Out
- Ch 6 In
- Ch 6 Level
- Ch 6 Response
- Ch 6 CV
- Ch 6 Out
How-To Guides
- Classic Envelope-Controlled VCA
- Harsh Percussion with Logarithmic Response
- Smooth Modulation with Exponential Response
- Six Channel Mixer with VCA Control
- Extracting a Channel from the Mix Bus
- Realistic Audio Crossfade
- CV Waveshaping per Modulation Channel
- Expanding to Befaco Hexmixer via Expansion Port
- Dynamic Timbre Sculpting with Response Morphing
- Parallel Processing with Mixed and Extracted Channels
Explore the interactive Hexmix VCA panel on BleepDex — tap any control to learn what it does.