Grainity

The Grainity brings the unique and never-heard-before concept of granular sound synthesis to VCFs.
With a 100% analog filtering path under digital control, the Grainity expands and enriches the sound in creating subharmonics, tunable harmonies, unison, flanging effects and formant filtering all at once.

The module presents two parallel sections, the granular filter itself and a typical multimode filter, each with its own output plus a 3rd mix output of both sections.

Numerous controls and CV allow a very wide palette of results.

Twin Waves MK II

Two independent oscillators with 20 algorithm-based sound synthesis options offer a wide palette of tonal variations or can be switched into highly versatile LFOs.

• Thick unison, waveshaping, additive, self-sync, noise with resonant VCF, ring modulation, bit-crushing and more; all are ready to enrich your palette.
• The tuning can be locked, changing the Coarse knob into an octave selector.
• Each VCO has its own quantizer with 21 different scales.
• The LFO offers wave shaping too, plus clocking with div/mult and sync capabilities.
• A semi-modular normalizing opens the realm of cross modulation without additional cables; just twist the pots!
• With its icons and on-demand scrolling information, the display avoids the need of a cheat sheet. No feature is more than one-level deep accessible.

CalTrans

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

Besides calibration, the CalTrans offers live play features.
Each channel can be quantized and any combination of them transposed jointly.
A pair of rotary encoders allow a quick selection of octaves and semitones.
You can add a pinch of portamento and glissando to each channel and save the whole in user presets.

Tweakers

The Tweakers is a slim companion module that allows fine tuning your modulations.

• Two channels each offer control over gain and offset.
• A three-position switch allows muting the channel and inverting the modulation polarity without impacting the offset.
• Normalizing of the inputs avoids using a multiple when a signal is dispatched to two targets.
• Normalizing of the outputs offers an bonus mixer, summing the two channels.

The Tweakers is a perfect companion for modules whose modulation inputs lack such amenities.

Activating predefined settings at the flick of a switch is paramount for live situations. Being able to prepare two sets of carefully adjusted settings for a given signal is even more useful. The Tweakers may come handy as an audio mixer too.

Tweakers Plus

This is a 1U-high companion module that allows fine tuning your modulations.

• Two channels each offer control over gain and offset.
• A three-position switch allows muting the channel and inverting the modulation polarity without impacting the offset.
• Normalizing of the inputs avoids using a multiple when a signal is dispatched to two targets.
• Normalizing of the outputs offers an bonus mixer, summing the two channels.

The Tweakers is a perfect companion for modules whose modulation inputs lack such amenities. This 1U version presents output LEDs for amplitude and polarity.

Activating predefined settings at the flick of a switch is paramount for live situations. Being able to prepare two sets of carefully adjusted settings for a given signal is even more useful. The Tweakers may come handy as an audio mixer too.

Mixwitch

With only a pinch of mixing, inverting and controlled switching, we brew up a plethora of combinations and uses. The user manual presents eighteen use cases.

Two mixers can be used separately or with the 4 channels mixed into one.
Polarity control and muting are under digital control for noise free operation.
When not used for CV, the Log button halves the mixer gain and changes the curve of the pots into logarithmic for precise audio control without clipping.

LEDs indicate each input's polarity, the Log mode and each output's signal amplitude and polarity.

A switching section allows selecting the inputs via CV or clock with cyclic or random order for sequencing fun.

ComPair

This module can be used as a pair of independent voltage comparators or a single window comparator.

Three outputs relay the comparison of the voltage(s) against the threshold levels set with the potentiometers. The Hi pot setting can be offset with a CV; this allows comparing two voltages against each other.

Each logic output is fit with a 3-position switch to signal a comparison match, lack of it, or be muted. LEDs indicate which output is currently active.

The combination of modes and settings leads to numerous applications encompassing logic and analog level detection.

The module works from DC to beyond-audio range

Flexshaper

The module can act as an envelope-shaping tool, frequency multiplier, waveshaper, clipper, distortion, limiter, curve changer, and more. Five settings + CV inputs offer limitless control over the placement of the voltage points for dynamic signal sculpting.

The idea of the Flexshaper comes from a feature in the Oberheim® Matrix synthesizers called Tracking Generator.
The Flexshaper applies the same concept using the same 5 shaping points. However, it goes beyond Oberheim’s implementation on two main aspects:

• It goes fast enough to process signals at full audio rate
• The 5 points are dynamically adjustable (CV) in real-time

Besides, the Flexshaper can process adequately bipolar and unipolar Eurorack signals, even changing one type into the other.

Two Bits

Two dual-input sections can be used independently, put in parallel for 4-input wide logic, or chained for more advanced processing.

Each section presents normal and inverted outputs.
The two sections offer a set of common and specific functions for a total 15 different ones; 30 when counting the inverted resuts (e.g. OR/NOR).

Several functions offer real-time CV control for dynamic change of their condition or setting.
All time-related functions can be independently user-adjusted and are saved automatically.
LEDs tell permanently the status of all outputs.

Logica XT

Besides the whole set of mainstream boolean logic, the Logica offers several unique functions based on state-logic, and with 3 inputs + manual control, brings you where other logic modules can't go.

Simultaneous normal and inverted outputs are completed with a div/2 output that expands its usability.

Time-related functions are user-adjutable and stored automatically; pulse lengths and delay duration can be adjusted from milliseconds to several seconds with perfect repeatable precision.

Selecting the functions with a CV brings the entirely new concept of controlled randomness into logic decisions.

2x4 Multiple

Elegantly matches the side stripes of Klavis modules, as well as all black setups.

A multiple is a required utility sitting efficiently next to modules whose signals should be dispatched to more than a single destination.

This a passive module that doesn't require a supply connection.

Surprisingly, a multiple could also be used with Klavis logic modules (Logica XT and Two Bits) for additional OR logic.
Indeed, these logic modules allow their outputs to be ORed by simply connecting them together.
With 4 jacks in one section of the multiple, 3 inputs to 1 output and 2 inputs to two destinations are both feasible.
Beware that such direct ORing feature might not be available with other brands of modules!

NoDrain

Reclaim your unused watts !
Did you know that typical 5V adapters draw 240% of the actual wattage they deliver, with 140% being wasted as heat ? Moreover they take it from your precious +12V rail.

Beating even other switching-supply adapters, the NoDrain converter takes its power where there is plenty unused: the -12V negative rail !

The NoDrain adapter does its conversion with high efficiency.
One full Amp of 5V takes less than 0.5 Amp on the -12V.

With 1 amp available, you can distribute the 5V from the NoDrain to several busboards.

Thanks to ultra-high-speed switching technique there is no noise to be heard.