DISC Cwejman PH-4 4-Phase Modulator

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Key Features

  • Dual Independent Ring Modulators
  • Internal LFO with Selectable Sine/Triangle Wave
  • 4 Dedicated Outputs For Phase Offset
  • Achieve Diverse Complex Effects
  • Dual LED Strips For Monitoring

DISC Cwejman PH-4 4-Phase Modulator Overview

View this description in Slovene

The Cwejman PH-4 4-Phase Modulator is a single-channel LFO Eurorack module featuring four dedicated outputs which are phased at 90 degree intervals. The Cwejman Phase Modulator's internal LFO is designed to generate a sine or triangle wave via the two-position switch. You can also manually set the modulation generator's frequency range, spanning from 40s-6ms in cycle length. It also boasts voltage control for the frequency, with the level-CV input used to modulate simultaneous output levels. The offset functionality adds an offset voltage to the outputs, meaning they do not oscillate around 0V, only above or below the voltage. It is ideal for a range of sound design applications and experimentation.

Disclaimer: Please note that due to the limited run of these modules, the waiting time can be up to 2 years.

Product Ref: 95393

Full Description

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Dual Independent Ring Modulators

At the heart of the PH-4 is dual ring modulators that connected to each other, over the quadrature carrier generator. The Cwejman PH-4 uses the ring mods to achieve phasing effects, unique to the PH-4. The internal LFO generates a sine or a triangle wave, which can be toggled via the two-position switch. Standard LFO modules normally only utilise the sine wave, ensuring optimal versatility when it comes to your tonal characteristics. The top of the faceplate features eight LEDs, designed to provide visual indication of rate, phase and waveform.

Switchable From LFO to Audio

A unique feature of the Cjweman Phase Modulator is the ability to switch from LFO to the audio range. The oscillator generates a sine as a carrier signal for the ring mod 9A, which is then used within ring mod B with a 90-degree delay, providing the means to generate a variety of complex effects. The wide frequency range spans from 0.01Hz to 20kHz, capturing every nuance of your signal source. The frequency itself can be controlled via coarse and fine knobs, as well as C and the level of both ring modulation units.

Versatile Connectivity

The streamlined yet ergonomic layout features a range of outputs and inputs for connecting the PH-4 to external modules and equipment. Each phase offset setting has a dedicated output, with 4 in total. The offset outputs range upwards in 90-degree increments. It also features CV input in the form of Rate, Offset and Level connections. The left input is routed to the right as long as there isn’t anything else patched.

Features

  • Two separate ring modulators connected via the quadrature carrier generator
  • Internal LFO with triangle and sine waves
  • Switchable from LFO to audio range
  • Oscillator generates a signal carrier signal for the ringmodulator
  • Achieve diverse complex effects
  • Wide frequency range for optimal audio performance
  • Four dedicated offset outputs in 90-degree increments
  • Rate, Offset and Level CV inputs
  • Dual four-segment LED lights for Rate, Phase and Waveform indication
  • Frequency can be set via the precision attenuators, ranging from 40s-6ms cycle length

Specifications

  • Width: 10HP
  • Depth: < 30mm
  • Current Draw: 20-40mA

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