Grafting technology found in keyboard and modular synthesizers into a pedal designed for guitar and bass players, Electro-Harmonix introduces the Blurst Modulated Filter. The Blurst modulates an instrument’s sound like an envelope filter, but instead of the filter’s response being controlled by playing dynamics, it is controlled by an internal oscillator.
The Blurst features an analog low pass filter with adjustable resonance, three modulation waveform shapes: triangle, rising saw-tooth and falling saw-tooth, a range knob that sets the frequency range of the filter’s modulation, a blend control to adjust the mix of the dry and filtered signal plus a volume control to regulate output volume.
Modulation rate is set by either the rate knob or a combination of the tap footswitch and tap divide toggle switch offering quarter, dotted eighth and triplet rhythms. Three EXP modes, range, rate and filter, can be controlled by an expression pedal or control voltage source.
The result is a pedal that can emulate a wide array of effects including phase shifter like swirls, tremolo-style volume shifts, rhythmic filter sweeps, syncopated shuddering when used with a device such as EHX’s 8 Step Analog Expression/CV Sequencer and more.
The Blurst Modulated Filter comes equipped with a standard EHX 9.6DC200mA power supply, is available now and features a U.S. List Price of $183.20.
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