Superbooth 2025: Klavis Terminal 4 is a four-channel multi-function module with VCA, LPG, and envelope generation.
In a modular Synthesizer, the functions are divided into modules. Depending on which functions you need, you buy one or another module. Modules combining several of these functions are handy, as they take up less space.
At Superbooth 2025, Klavis from Belgium unveiled Terminal 4, a multi-function module with four independent channels.
Klavis Terminal 4
Terminal 4 is a new 8HP module with four channels that can be used independently or in stereo pairs.
Each Klavis Terminal 4 channel can contain a function: VCA, lowpass gate (LPG), or envelope generation. This gives you much flexibility and power in just 8HP, allowing you to have a quad VCA or LPG or a wild combination of everything.
However, you do not have full control over all parameters. For example, the envelopes have a simplified implementation. You can choose between eight preset/template shapes (AR, ASR, etc.). Plus, you can shape the entire shape with a dedicated time potentiometer.
There are modes where specific parameters remain untouched, like the percussive envelope shape, which always has a zero value. The linear and logarithmic curve morph control shapes them further.
In addition to the envelope generator, you can set each channel to a lowpass gate that uses the same envelope template knob. The third and last mode is the VCA mode. Mono and stereo configurations are available with an adjustable and CV-controllable offset/balance control.
Klavis also added a zero-crossing function to the Terminal 4 that can change the setpoint of the amplitude only at the moment where the wave passes through zero. Especially useful for more harmonic-rich waveforms.
Further, the module’s jacks are DC-coupled and accept CV and audio signals, and there is an automatic cascading mixing option for the unconnected outputs.
First Impression
At first glance, it’s a handy new multi-function module from Klavis with many options at just 8HP.
Klavis Terminal will be available after the Summer for under 300€.
More information here: Klavis
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