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Frequency Central

Items 1 to 9 of 9 on page 1 of 1
Cat: 614113 Rel: 20 Jun 16
Eurorack phaser synth module - 12HP wide
Notes: Continuum has it's roots in my previous guitar effects pedal designs. First there was Causality 4, then Causality 6, then Gemini Dual Core.

Continuum looks and acts rather like a VCF, in fact that's exactly what a phaser is, an all-pass VCF. There's far more to phasers than just sweeps up and down from an LFO, so Continuum has two CV inputs, so you can use a variety of CV sources simultaneously.

The topology of Continuum is 4 swept OTA all-pass filter stages with a fixed all-pass filter stage either side of the swept core. There's a switch to select regen over odd or even stages. Most phasers stick to odd stages, but there are undiscovered sonic possibilities using even stages of regen.

Continuum is now a 2 PCB set and skiff-friendly, a tasty PCB sandwich no less! One PCB holds the main circuit, the other all panel components (pots/sockets/switch). The two PCBs are joined by male/female headers The new version is on RED PCB stock (the old version being a GREEN PCB).

For audio demos, please visit - https://soundcloud.com/frequency-central
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 1 in stock $143.40
Frequency Central Deep Thought Boolean Logic Module
e-mail me when released
coming soon $TBA
Frequency Central Dual XVCA Module
Cat: 693143 Rel: 26 Jun 18
e-mail me when released
coming soon $TBA
Cat: 614126 Rel: 20 Jun 16
Voltage Controlled Filter (VCF) & Voltage Controlled AMplifier (VCA) synth module based on the Moog Taurus Mk I VCF and VCA
Notes: Raging Bull is based on the legendary Moog Taurus Mk I VCF and VCA. It has a lovely, thick Moog-like quality, which is further enhanced by the drive you can get out of its VCA at higher settings.

A big part of the sound of the Taurus was the way in which the VCF interfaced with the VCA, so on Raging Bull the VCA is always in the audio path. A toggle switch allows you to select 'always open' or CV control of the VCA from CV input 1.

For audio demos, please visit - https://soundcloud.com/frequency-central
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 1 in stock $159.35
Cat: 614128 Rel: 20 Jun 16
Eurorack variable filter synth module based on Roland System 700 filter module - 10HP wide
Notes: Based on the Roland System 700 state variable filter module. Lowpass, bandpass and highpass outputs.

A big part of the sound of the State 700 is the way in which resonance is reduced as the audio inputs are driven harder. It won't self oscillate with a hot audio input, throttle back a little and you'll get squelchy ear bleeding resonances!

For audio demos, please visit - https://soundcloud.com/frequency-central
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 1 in stock $177.26
Cat: 614151 Rel: 20 Jun 16
Eurorack voltage controlled filter (VCF) & voltage controlled amplifier (VCA) synth module based on the Moog Rogue VCF and VCA - 10HP wide
Notes: Proudly presenting the lastest module in the ever expanding Frequency Central stable - 'Vogue VCF/VCA' - a faithful clone of the Moog Rogue VCF and VCA on 10HP. Vogue... rhymes with... Rogue... rhymes with Moog.

Vogue has two outputs, VCA and VCF, so the module can be used as a VCF and VCA combined, or you can bypass the built-in VCA altogether and use the module as a stand-alone VCF. The VCA CV input is shared with VCF CV input #1, although it is not affected by the attenuator - so you can feed an ADSR into this CV input, attenuate it for the VCF, but still have the VCA kicking out at full gain. I thought this was a cool way to add the extra functionality of the Rogue's quirky VCA without needing any extra panel space!

Module width: 10HP
Module depth: 65mm
Current draw: +10ma/-10ma

For audio demo, please visit - http://www.frequencycentral.co.uk/wp-content/uploads/2012/11/MoroderClarke.mp3
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$148.39 SAVE 25%
 1 in stock $111.29
Cat: 614155 Rel: 20 Jun 16
Eurorack multi-waveform syncable Low Frequency Oscillator (LFO) module based on Electric Druid TAPLFO2D family of code - 4HP wide
Notes: Wave Runner LFO:
Wave Runner is a multi-waveform sync-able LFO based on the Electric Druid TAPLFO2D family of code, but with some significant additions and improvements. The TAPLFO2D-FC PIC and code is exclusive to Frequency Central and was developed specifically for the Wave Runner, and is not compatible with similar modules.

8 waveforms:
- sawtooth
- ramp
- pulse
- triangle
- sine
- noise
- sample and hold
- stepped triangle/sawtooth/ramp

All waveforms can be skewed using the Distort knob, as well as control over pulse width of square, and distortion of the cyclic waveforms, this get you control over Noise freq as well as bitcrushing, bitcrush of S/H down to 1 bit for random triggers.

Tap sync input, for syncing to whatever. Wave Runner measures the last two incoming pulses and syncs itself to these. Multiply knob allows for Wave Runner to run at x0.5, x1, x1.5, x2, x3 and x4 of the incoming sync pulse. Freq is from stupid slow (0.025Hz) into low audio range (50Hz).

The latest version also features Level CV input to control the absolute output level of the LFO.
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 1 in stock $134.99
Frequency Central Wave Runner LFO MU Format Module
e-mail me when released
coming soon $TBA
Cat: 614154 Rel: 20 Jun 16
Eurorack digital voltage controlled oscillator (VCO) synth module
Notes: Waverider Digital VCO - here we go! Now in production, wavetable VCO with tons of features: CV'd interpolating waveforms, CV'd subosc waveforms and octaves, CV'd glide, bitcrushing and more!

Frequency: The Frequency CV input accepts 0-5V control voltages, quantized to semitones, to cover the MIDI note range 0-63. It is possible to limit the CV input with the CV attenuator. The basic frequency range of the VCDO is ten octaves from MIDI Note 0 to MIDI Note 120 (8.18Hz to 8372Hz), and can be selected by the manual Frequency knob.

Detune: The Detune CV input is not quantised, and allows for -5V to +5V CV to modulate +/-8 semitones. The manual Detune knob allows adjustments to be made +/-100 cents.

Waveform: The VCDO section has 16 waveforms which you're unlikely to have seen before, arranged as a wavetable. The VCDO is able to crossfade from one to the next, creating a wavetable which you can scan through under voltage control, -5V to +5V. It would have been easy to include standard waveforms like ramps and triangles, but there are many oscillators that produce those. This oscillator has its own character and provides something different.

Sub Wave: As well as the main oscillator, there is also a sub oscillator with 8 waveforms. Each waveform can be selected at one of four octaves, either +1 octave (above the main osc pitch!), in unison, -1 octave, or -2 octaves. Additionally, the Sub Wave can be selected externally by CV, -5V to +5V.

Glide: Waverider also includes a glide/portamento effect, glide times range from 12ms/octave to 2.4secs/octave. Turning the Glide knob to minimum switches the glide effect off. Additionally, Glide can be externally controlled by any gate source, 0V = Glide off, 5V = Glide on.

Crush: The Crush knob controls the sample bit resolution of the output (ie bitcrushing). This can be reduced from 8-bit down to 1-bit in eight steps.

VCDO and Sub Osc Outputs: 8-bit, 62.5KHz sample output rate. The internal waveforms and calculations are 8-bit, and new samples are output via the on-chip PWM modules at 62.5KHz. The PWM modules' outputs are at 125KHz.

For audio demos, please visit - https://soundcloud.com/frequency-central
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 1 in stock $189.23
Items 1 to 9 of 9 on page 1 of 1

Frequency Central

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