Teia Synthesizers

Notes: OpticShifter is a 20-Stage optical Phaser with flexible feedback and pole selection. Drawing inspiration from classic 70's era phase shifters, it combines vintage charm with modern versatility. Whether you're aiming for subtle movement or dramatic swooshing and whooshing, from phasing to vibing, OpticShifter creates an immersive Phase Shifting experience.

Notes: The OpticTone MK2 is an improved revision of our original module, combining a 12dB multi-mode Vactrol VCF and a Vactrol VCA. This unique circuit is inspired by the distinct characteristics of Vactrols and Lowpass gates, celebrated for their fluid and natural character.

Notes: RipWave is a compact 6HP analog VCO designed for rich sonic exploration in a small footprint. At the heart of its design is the Transform knob: a unique, voltage-controllable parameter that shapes the character of each waveform. It offers a wide range of timbral variation, from saturation to wavefolding, harmonic morphing, and pulse width modulation, all in a single control.

On the Sine output, the Transform knob applies a tanh() saturation circuit, gradually shaping the waveform from a pure tone into a warmer, slightly overdriven version. As you turn the knob, the wave is smoothly compressed and harmonics are introduced, adding character without harsh clipping.

For the Triangle wave, turning the Transform knob folds the waveform through a transistor wavefolder, shaping the timbre of the signal by adding harmonic complexity. An additional soft clipping diode saturation stage keeps the amplitude in check, taming peaks while introducing additional character.

In the case of the saw output, the waveform is generated by combining two complementary signals: one waveform containing only odd harmonics, the other only even harmonics. The Transform knob controls the balance between them. At the center position, both are equally summed to produce a Sawtooth wave. Turning the knob blends between the two, letting you isolate odd or even harmonics and shape the timbre across a wide range of harmonic textures.

The Transform knob performs a more traditional role with the Pulse wave, acting as a pulse width control. At the center position, it produces a classic Square wave with a 50% duty cycle. Turning the knob shifts the duty cycle toward narrower or wider pulses, delivering the familiar pulse width modulation sound.

An octave switch provides quick transposition and includes an LFO mode for low-frequency modulation duties, allowing RipWave's uniquely shaped waveforms to be used as modulation sources. RipWave also features both sync and linear FM inputs. The sync input allows the oscillator to be reset by an external signal, creating harmonically rich or rhythmically locked results depending on the source. A rear-panel jumper lets you select between hard and soft sync modes to suit different patching contexts.

The linear FM input offers a wide modulation range, from subtle pitch modulation and vibrato to deeper, more complex timbral shifts depending on modulation depth.

Though initially designed as a companion for VastWave, RipWave has developed a strong identity of its own. It performs equally well as a standalone oscillator in a compact system or alongside its larger sibling. Whether used for Lead voices, complex layering, or modulation, it delivers a wide range of shaping options. From warm tones to ripping textures, RipWave pushes all waveforms into harmonically rich territory, making every output well suited for East Coast - style subtractive synthesis as well as West Coast - style waveshaping systems.

Notes: Designed with versatility in mind, MapVolt is a dual-channel Universal Voltage Processor built for flexibility in handling audio and CV signals.

With only 6hp, Mapvolt is a multipurpose tool for voltage-controlled scaling, inverting, offsetting, subtracting, and mixing functions.

Each channel of MapVolt can operate in either Polarizer or Attenuator mode, allowing manual control via knobs or CV signals. In Polarizer mode, it functions as a Voltage Controlled Attenuator-Inverter, granting control over signal level and polarity. Additionally, it can be used as a Four-Quadrant Multiplier or Ring Modulator for audio signals, with the processor input serving as the carrier signal and the polarizer's CV input acting as the modulator.

In Attenuator mode, MapVolt operates as a VCA, providing control over signal levels. Its VCA CV input range of +5/-5 makes it well-suited for amplitude modulation (AM) with other +/-5V waveforms.

MapVolt is equipped with dedicated Voltage Offset knobs for each channel, which can be controlled via CV. If no input is patched into the Processor input channel, the Voltage Offset knobs can be used as Offset Generators.

With its dedicated mixing stage, MapVolt enables the combination of both channels into a shared output. Furthermore, if one of the processor channels is inverted, it allows for the subtraction of one signal from the other.

Dimensions
6 HP
33 mm deep

Current Draw
65 mA +12V
65 mA -12V