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Electro Harmonix BLURST Modulated Filter-Easy Music Center

Electro-Harmonix BLURST Modulated Filter

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EHX has grafted technology found in keyboard and modular synthesizers into a pedal designed for guitarists and bass players. The Blurst modulates an instrument’s sound like an envelope filter, but instead of the filter’s response being controlled by playing dynamics, it’s controlled by an internal oscillator. The Blurst is a must have for the adventurous player who wants to explore new sonic territory!

  • BYPASS Footswitch & Orange Status LED –The orange LED illuminates when the effect is engaged. The status LED glows brightly to signal that all operational voltages are satisfactory. Tap the footswitch to toggle between effect on and off. When the effect is off, the pedal is in true bypass mode.
  • Yellow Filter Status LED – The yellow LED illuminates based on the current cutoff frequency of the filter. In most cases it can be used as a visual representation of the rate of the LFO modulating the filter. NOTE: at certain settings—depending upon the position of the RANGE knob—the LED will remain lit or will not light at all.
  • TAP Footswitch – Use this footswitch to tap in a tempo for the LFO.
  • VOLUME Knob – Sets the Blurst’s output volume in effect mode.
  • BLEND Knob – Sets the mix between dry and wet (filtered) signal.
  • RESONANCE Knob – Sets the resonance of the filter; also affects the volume of the filtered signal.
  • RANGE Knob –Sets the frequency range of the filter’s modulation. Maximum range with the knob at 50%. Range gets smaller and centers around lower frequencies as you bring the knob from 50% to minimum. Range gets smaller and centers around higher frequencies as you bring the knob from 50% to maximum.
  • RATE Knob – Controls the speed of modulation.
  • EXP MODE Switch – Determines which parameter the expression pedal controls.
  • TAP DIVIDE Switch – Sets the note type based on tapped in quarter notes.
  • SHAPE Switch – Sets the waveform shape of the LFO.
  • INPUT Jack – Plug your instrument or the output of another effects pedal into this ¼” jack. The input impedance is 2.2M.
  • OUTPUT Jack –Outputs the Blurst’s audio signal. The output impedance is 220 ohms.
  • EXP Jack – Plug a TRS expression pedal or other CV device (such as an EHX 8-Step Program) into this ¼” jack.
  • 9V Power Jack – Plug the output of the AC adapter into the 9V power jack located at the top of the Blurst. The Blurst draws 56mA at 9VDC with a center negative plug. The Blurst accepts Boss® and Ibanez® style AC Adapters capable of delivering at least 100 mA.
  • Features an analog low pass filter with adjustable resonance
  • Three modulation waveform shapes: triangle, rising saw-tooth and falling saw-tooth
  • 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 like EHX’s 8 Step Program Analog Expression/CV Sequencer
  • Range knob sets the frequency range of the filter’s modulation, Blend control adjusts the dry/filtered signal mix
  • EHX 9.6VDC-200mA power supply included
  • Current Draw: 56mA @ 9VDC
  • Dimensions in inches: 4.0(w) x 4.75(l) x 2.25(h)
  • Dimensions in mm: 102(w) x 121(l) x 58(h)