Electro-Harmonix Blurst! Modulated Filter The EHX Blurst Modulated Filter grafts 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! Features: 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 Power adapter included Specifications: Circuit: Analog W/ Digital Control Bypass: Buffered Bypass Audio: Mono Power Supply: 9.6 Volts DC-200 mA Power Adapter Included Dimensions: 4.75 x 4 x 2.25 Inches Current Draw: 56 mA Year Released: 2017 UPC: 683274011905 The pedal comes with Electro-Harmonix's Factory Warranty and our 100% satisfaction guarantee!