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Klavis Terminal 4

Klavis Terminal 4

Regular price €263,00
Sale price Regular price

Product details

Main features

  • VCAsfour DC-coupled channels or two stereo pairs with Lin/Log curve and offset
  • LPGs6 dB, 12 dB and 24 dB/oct Vactrol and filter-hybrid modes per channel
  • Envelopesone per channel with 8 templates and proportional time setting
  • Mixerunpatched outputs mixed automatically for audio, modulation and envelopes

Overview

Klavis Terminal 4 is an 8HP Eurorack module that puts a VCA, a low-pass gate and an envelope generator on each of four channels, with a mono/stereo mixer built in. It suits modular users who want amplitude control, LPG tone shaping, envelopes and final mixing in a small footprint, from skiffs to large systems. It can work as a quad VCA, four LPGs, a bank of envelopes or a stereo final mixer, either one role at a time or several at once.

  • DC-coupled VCAs: four independent channels or two stereo pairs, handling audio and CV, with Lin/Log response, offset and bipolar level CV
  • Three LPG modes per channel: 6 dB/oct single-Vactrol emulation, 12 dB/oct dual-Vactrol West Coast-style LPG, and a 24 dB/oct LPG/VCF hybrid with moderate resonance
  • Envelope per channel: eight templates covering ADR, AR, ASR and ADSR, proportional time up to 8 s and adjustable curvature
  • Automatic mixing: unpatched outputs are summed into 4>1 or two 2>1 mixes, for audio, external modulation and the internal envelopes
  • Stereo tools: linked channel pairs gain a constant-loudness Balance control with bipolar balance CV, plus mono-in to stereo-out
  • Recall: settings are saved at power-off and restored at power-on, with six memory slots

The VCAs offer zero-crossing switching, which delays level changes until the waveform passes zero volts to avoid clicks. With some offset dialled in, a bipolar LFO can fully modulate a VCA for tremolo. In Log mode the response behaves much like a mixer fader, attenuating low levels more. Linking channels 1+2 or 3+4 turns the second CV input into a balance input, and if the second input of a pair is left empty, the first is copied to both sides.

When a channel's envelope is active, its CV input becomes a gate/trigger input, and the envelope either drives that channel's VCA or LPG or, with no signal patched in, appears at the output as CV peaking at 8 V. Mixing two channels makes more complex envelopes possible. The manual also covers half-wave rectification, modulation shaping, AND/OR logic and gate or trigger delays.

Five knobs and two buttons are shared across the channels, which you select with four channel buttons. Five white LEDs show when a knob matches its stored value and which way to turn it. The module has a 2 mm aluminium panel, takes firmware updates via audio file and comes in silver or black.

Specifications· 26 details

Format

Format
Eurorack, 3HE
Width
8HP (40.40 mm / 1.59 in)
Height
128.40 mm / 5.06 in
Depth
36.00 mm / 1.42 in (supply cable inserted)
Panel
2 mm aluminium
Weight (module)
90 g / 3.17 oz
Weight (boxed)
160 g / 5.64 oz
Included
Module, 4x M3 black mounting screws with washers, Eurorack 16/10-pin power cable

Inputs & outputs

Inputs
4x In (audio and modulation, DC and bipolar)
CV inputs
4x Level/Bal/Gate (Level CV, Balance CV or EG gate/trigger)
Outputs
4x Out
Jack tolerance
-12 V to +12 V
Signal range
17 Vp/p (inputs/outputs and Level control input)
Gate threshold
1 V minimum
Envelope output peak
8 V

Controls

Knobs
5 (shared across channels)
Buttons
2 function buttons, 4 channel select buttons
Indicators
5 white knob-position LEDs, clipping LED per channel
Memory
6 slots, settings restored at power-on

Power

Power connector
Eurorack 16/10-pin
Protection
Reverse insertion protected

General

Functions
Mixer, Modulation, and Utility
Module height
3U
Instrument material
Aluminum
Synthesizer form factor
Control voltage or gate connectivity
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About the brand

Klavis

Klavis is a Brussels-based maker of compact, feature-rich Eurorack modules, known for the Twin Waves MKII dual oscillator, Quadigy envelopes and CalTrans pitch utility, often applying digital techniques to modular synthesis.
Origin
BE
Founded
2018
Products
13
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