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Polytope

Quad-Voice Detuner ($235)

Create massive, multi-faceted and shimmering sounds with the Polytope four-voice detuner/chorus/vibrato.

The Polytope creates up to four copies of the input signal, which can be detuned in pitch from subtle thickening to huge multi-voice detuned synth sounds. The detuned voices maintain the timbre of the input and respond well to polyphonic signals. In addition to the static detune mode, the included LFO (low frequency oscillator) can be used to sweep the pitches of all four voices to create wide and deep chorus ensembles when combined with the clean signal.

Removing the clean signal allows for true pitch vibrato, from slight wavering to tape-style wow and flutter, slow seasick wobbles and high speed FM synth-style modulation. A switchable high-pass or low-pass filter applies the detuning only to the chosen frequency range.

The detuning amount, or chorus/vibrato depth, can be controlled with an expression pedal, for a variety of expressive and unique effects.

The controls are extremely wide-ranging, covering classic sounds and extending into spaced-out madness.

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Controls

Detune: Controls the amount of pitch shift away from the original note. The Range switch sets the range of this knob; the lower setting covers a smaller range, for lush and musical detune sounds. The higher setting allows the pitch to be shifted multiple semitones up and down (in multi-voice modes) for more extreme sounds. With the LFO engaged, this controls the depth of the pitch sweeping.

With an expression pedal connected, this knob will tune the maximum amount of detune/chorus/vibrato through which the expression pedal sweeps.

Voices: This knob fades up the volume of each detune voice in sequence, starting with one voice shifting up from the original pitch, then adding a down-shifting voice. Voices 3 and 4 are additional upward and downward voices, respectively, which are twice as far from the original note as 1+2.

Filter: This control sets the cutoff frequency of a filter before the detuning, which can be switched between high-pass and low-pass. High-pass mode can be used to remove beating that can happen with bass-heavy detuning, or to apply the detuning only to upper harmonics of a signal, as well as for creating unique special effects. Low-pass mode is good for creating more mellow and warm chorus sounds.

Clean: Controls the volume of the clean signal. Adding the clean signal in creates detune or chorus sounds – removing it creates vibrato.

Voice vol: Controls the volume of the detuned voices.

Speed: When the LFO is engaged, this controls the speed of the LFO which sweeps the pitch up and down. Ranges from very slow, one cycle over many seconds, up to low audio frequencies.

LFO: Setting this switch up engages the LFO.


Specifications

Low-noise, low-distortion active components chosen for excellent audio fidelity.
Measures 4.7″ x 2.5″ (12cm x 6.3cm).
Runs on industry-standard 9 volt DC center-negative power supply. 85mA current draw.
Relay-based true bypass.
All jacks are located at the top of the pedal to save pedalboard space.
Learn more about the construction of IE pedals here.








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