ALM Busy Circuits Tangle Quartet

4-channel live VCA mixer with sends, pan, and mutes

8 HP Eurorack module

The Mega-Tang is a 4-channel linear VCA and stereo mixer with per-channel level, effect send, pan, and soft mute controls. Built for live performance, it delivers a clean and transparent sound inherited from the Tangle Quartet VCA, with a stereo mix bus, mono effects send with stereo return, individual VCA outputs for cueing, and DC-coupled signal paths for CV as well as audio use.

Features

• 4-channel linear VCA based on the Tangle Quartet VCA design
• Stereo mix output with per-channel pan control
• Mono effect send with stereo return (returns are AC coupled, left normalled to right)
• Per-channel send amount control
• Soft mute latching buttons with click-reduction circuitry
• Per-channel mute LED indicators
• Per-channel Level CV inputs with LED indicators
• Individual VCA outputs (post-VCA, pre-send/pan/mute) for cueing and monitoring
• All signal inputs DC coupled for CV and audio use
• Expansion port for future expandability
• Designed for live performance with compact 16HP layout
• Euro level signals throughout

Controls & Jacks (20)

• Channel 1 Input
• Channel 1 Mute
• Channel 1 Level CV
• Channel 1 Level
• Channel 2 Input
• Channel 2 Mute
• Channel 2 Level CV
• Channel 2 Level
• Channel 3 Input
• Channel 3 Mute
• Channel 3 Level CV
• Channel 3 Level
• Channel 4 Input
• Channel 4 Level CV
• Channel 4 Level
• Mix Out
• Output 1
• Output 2
• Output 3
• Output 4

How-To Guides

• Basic 4-Channel Stereo Mix
• CV Controlled VCA on Single Channel
• Live Reverb Send-Return
• Performance Mute with Cue Monitoring
• Automated Stereo Panning via CV Mix
• 4-Channel CV Mixer
• Drum Bus with Parallel Effect Send
• Generative Amplitude Modulation
• Ambient Wet Submix with Heavy Reverb Send

Explore the interactive Tangle Quartet panel on BleepDex — tap any control to learn what it does.