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Price without VAT: €155,37
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All new products include a 2-year warranty.
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| Description |
| Price |
| Brand |
| Type |
| Product variants |
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| The Klavis CalTrans is a 6HP Eurorack module that calibrates and transposes Volt/Octave pitch voltages on four independent channels. It is built for modular players working with tonal material who deal with VCOs that track poorly, pitch responses that drift from 1V/Oct, a narrow usable octave range or awkward transposition across several voices.
CalTrans works as a relative tuner rather than an absolute one. It makes semitone and octave steps even across a range of up to 10 octaves, while you still set each oscillator to the right note with the transpose encoders and fine-tune it against a reference with the VCO's own tuning control. Each channel holds one calibration profile, so a VCO calibrated in V/Oct mode should stay on its channel; channels in Neutral mode can be swapped freely. It can also handle other pitch scaling systems, such as Buchla. When several oscillators are transposed together and one cannot reach high or low enough to follow the lead channel, CalTrans moves it to its highest or lowest available octave so the chord or harmony stays intact. Portamento follows the exponential curve of analog circuits, while glissando steps through every semitone between two notes. Combining them can approach a linear glide, and setting both short produces an unusual grainy portamento. The V/Oct inputs are factory calibrated, and their input scaling can be adjusted to compensate for inaccurate sources such as MIDI-to-CV interfaces. Firmware updates are loaded by playing an audio file into the calibration input. The module is compact enough for skiffs and comes with a choice of silver or black panels. | Regular price
From €178,00
Sale price
Regular price
| Klavis | Modular CV Processors |
Prices include 21% VAT based on your delivery country (Netherlands).
Price without VAT: €155,37
EU businesses outside the Netherlands can purchase with 0% VAT using a valid EU VAT number.
VAT is automatically removed after VAT validation during checkout.
The Klavis CalTrans is a 6HP Eurorack module that calibrates and transposes Volt/Octave pitch voltages on four independent channels. It is built for modular players working with tonal material who deal with VCOs that track poorly, pitch responses that drift from 1V/Oct, a narrow usable octave range or awkward transposition across several voices.
CalTrans works as a relative tuner rather than an absolute one. It makes semitone and octave steps even across a range of up to 10 octaves, while you still set each oscillator to the right note with the transpose encoders and fine-tune it against a reference with the VCO's own tuning control. Each channel holds one calibration profile, so a VCO calibrated in V/Oct mode should stay on its channel; channels in Neutral mode can be swapped freely. It can also handle other pitch scaling systems, such as Buchla.
When several oscillators are transposed together and one cannot reach high or low enough to follow the lead channel, CalTrans moves it to its highest or lowest available octave so the chord or harmony stays intact. Portamento follows the exponential curve of analog circuits, while glissando steps through every semitone between two notes. Combining them can approach a linear glide, and setting both short produces an unusual grainy portamento.
The V/Oct inputs are factory calibrated, and their input scaling can be adjusted to compensate for inaccurate sources such as MIDI-to-CV interfaces. Firmware updates are loaded by playing an audio file into the calibration input. The module is compact enough for skiffs and comes with a choice of silver or black panels.
