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Klavis CalTrans Eurorack CV Calibrator and Transposer Module (Silver)

£144.00 inc. UK VAT

£120.00 ex. VAT

In stock (can be backordered)

(Bear in mind prices on the UK site are shown including UK VAT. After entering your shipping address at checkout prices will update to show the correct taxes due to us based on your location. If purchasing internationally, VAT, handling fees, and import duties will potentially be due on delivery)

Product Info

The CalTrans solves issues encountered when playing tonal music with a modular system: tracking problems, curves unrelated to Volt per octave ratio, limited octave range, cumbersome transpose, … The Caltrans corrects and expands the range of troublesome VCOs and brings V/Oct tracking to anything that oscillates.

A pair of rotary encoders with detent allow an precise selection of octaves and semitones. VCOs whose tracking doesn’t go high (low) enough to follow the leader will see their pitch repositioned in their highest (lowest) possible octave so that the global harmony is unaffected. You can add a pinch of portamento and glissando to each channel and save the whole in user presets.


  • Four V/Oct processing channels, with curve correction and range expansion, works with other range systems (e.g. Buchla), 1:1 in/out V/Oct mode for use without calibration
  • Switchable semitone quantizer
  • Adjustable portamento and glissando time
  • Separate semitone and octave transpose click-encoders
  • Four user presets storing transpose, portamento and glissando
  • Maximum voltage range covering 10 octaves
  • Presets, calibration and current state retained over power cycle
  • Volt/Oct inputs factory-calibrated in flash memory
  • User adjustable input scaling to correct voltage inaccuracies in your sources

Width: 6hp
Depth: 36mm
Power: +12V: 44mA, -12V: 8mA
Manufacturer product page here.
Product manual here.

Free Delivery for UK orders over £99

Terms and conditions apply

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