Eventide Knife Drop Sub-Octave Fuzz And Analog Synth Pedal

Sub-Octave Fuzz, Analog Synth Oscillator, And An Envelope Filter — The Eventide Knife Drop, Co-Created With Jack White And Third Man Hardware

The Eventide Knife Drop is a sub-octave fuzz and analog synth effects pedal co-designed with Third Man Hardware, Jack White's manufacturing company. It combines three blended signal sources — the direct instrument signal, a monophonic analog-style synth oscillator, and switchable upper and lower octave signals — through an aggressive distortion circuit, then processes the result through an ADSR-style resonant lowpass filter. The filter's cutoff frequency is swept by an envelope derived from the input signal's amplitude, with adjustable attack time (0 to 1000ms), cutoff frequency, and resonance, plus a pre/post-distortion position switch that places the filter before the fuzz (shaping what enters the distortion circuit) or after it (shaping what exits). An output level control provides precise volume management from -12 to +9dB.

Five exclusive presets co-developed with Jack White are stored onboard, each carrying +6dB of additional gain above the standard output ceiling. An LED ladder display guides navigation through preset selection. Additional presets are accessible via MIDI or the H90 Control app. The Octaves LED button activates the upper and sub octave signals; a secondary octaves footswitch allows these to be disengaged independently during performance. A secondary LED button accesses additional parameters for deeper customisation. The H90 Control app connects via USB for firmware updates, additional preset management, and system settings. Both input and output are switchable between mono and stereo, with separate guitar and line level optimisation.

Filter Position And Octave Architecture

The pre/post filter switch is the Knife Drop's most significant tonal variable. In pre-distortion mode, the filter shapes the frequency content before it reaches the fuzz circuit — a closed filter produces a dark, compressed fuzz; an open filter passes full-range signal into the distortion; an envelope sweep moves through these characters dynamically. In post-distortion mode, the filter works on an already-clipped and harmonically saturated signal, producing a wah-like sweep through dense fuzz textures rather than through the cleaner input signal. Combined with the three-source blend of direct signal, oscillator, and octaves, the range of tonal variation from a single pedal is substantial.

KEY FEATURES: Eventide Knife Drop Sub-Octave Fuzz And Analog Synth Pedal

• Blackhole Algorithm: Based on the legendary DSP4000 algorithm.
• 5 Onboard Presets: Blackhole, Dark Matter, Nebula, Singularity, Pulsar.
• Up To 127 MIDI Presets: Via MIDI program change.
• Size Control: From tiny room to limitless void.
• Gravity Control: Normal or inverse decay — creates swells, suck-back effects, and reverse tails.
• Infinite Mode: Continuously layers new material on a suspended reverb.
• Freeze Mode: Holds reverb tail in stasis for playing over.
• Feedback Control: Push the reverb past the event horizon into infinite sustain.
• Lo, Hi, And Q EQ: Shape the spectral character of the reverb tail.
• Built-In Modulation: Integral to the reverb structure, not added on top.
• Multiple Bypass Options: Buffered, Relay, DSP+FX, Kill Dry.
• Expression Pedal Input: Map any combination of parameters.
• MIDI: Via TRS (requires adapter) or USB Mini.
• Guitar/Line Level Switch: Rear panel.
• EDM Software: Full preset editing and management via Mac or PC.
  

Eventide Knife Drop Quick Start Guide