Klavis Terminal 4 Quad VCA, LPG, Envelope Generator - Black

Klavis Terminal 4 Quad VCA, LPG & Envelope Generator - Black

The Klavis Terminal 4 is a compact 8HP Eurorack module that combines four independent VCAs, four low-pass gates, four envelope generators, and versatile mixing capabilities into a single space-efficient module. Each channel can operate independently or be configured as part of stereo pairs, making Terminal 4 a flexible solution for shaping audio, processing CV, and generating modulation.

Each DC-coupled VCA handles both audio and CV signals and offers selectable linear or logarithmic response curves, adjustable offset, and zero-crossing switching for precise level control. Stereo linking provides manual and CV-controlled balance adjustment for stereo and spatialized applications.

Four dedicated LPGs provide three selectable circuit presets, ranging from subtle 6dB/octave Vactrol-style processing to a classic 12dB/octave dual-Vactrol design and a punchy 24dB/octave LPG/OTA-VCF configuration with resonant filtering.

Each channel also includes an envelope generator with eight envelope templates, proportional time control, and adjustable linear-to-logarithmic curves. Envelopes can be used to control the integrated VCA or LPG directly, or sent externally as CV modulation sources.

• Four independent VCA channels or two stereo pairs

• DC-coupled audio and CV processing

• Selectable linear/logarithmic VCA curves

• Adjustable VCA offset

• Zero-crossing switching for clean level transitions

• Stereo linking with manual and CV-controlled balance

• Four dedicated LPGs with three selectable presets

• 6dB/oct single-Vactrol LPG preset

• 12dB/oct dual-Vactrol LPG preset

• 24dB/oct LPG/OTA-VCF preset with resonant filtering

• Four envelope generators with eight templates each

• Proportional envelope timing

• Adjustable linear/logarithmic envelope curves

• Internal VCA/LPG control or external envelope CV output

• Automatic mixing of unconnected outputs

• Supports mono and stereo signal flows

• Audio, external CV, and generated envelopes can be mixed

• Individual clipping LEDs for level monitoring

• Potentiometer/value matching LEDs for intuitive editing

• Settings retained after power cycling

• Firmware updates via audio file

• Compact 8HP Eurorack format

• 2mm thick aluminum front panel

• Skiff-friendly design

• Power consumption: +12V 90mA, -12V 24mA

• Dimensions: 8HP × 3U × 36mm deep