Way Back Machine. Step on Zelzah, play one chord, and you’re instantly taken back to a world of classic phaser tones as they were always meant to sound, perfectly voiced, with tons of vibe. Vintage 4-stage and 6-stage phasing with controls that allow seamless transitions to vibrato, gorgeous flanging and chorus, and new sounds never heard before—all instantly musical with great tone all the way across every dial.
Two Effects At Once. Zelzah is actually two different phasers, side by side in one pedal. Zelzah’s 4-stage side gives you a wide array of classic tones ranging from phasing to vibrato and more, while the 6-stage side provides phasing, flanging, chorus, and all points in between. Dial in a chorus on one side and barber pole phaser on other, or a phaser on one side and tremolo on the other. Use the two sides independently or together in a variety of configurations. Zelzah may become the only modulation pedal you keep on your board.
Choose Your 4-Stage Phaser Sweep
Classic Sweep The first Sweep mode is labeled “Classic” because this is the classic four stage phaser sweep we all know. In this Sweep mode, a single LFO with a warped triangle shape creates that familiar vintage sound.
Barber Sweep Similar to the visual effect of a barber pole, the Barber sweep is a continuously rising or falling effect that is traditionally done with frequency shifters. In Zelzah we have used an arrangement of synchronized four stage phasers to produce the effect while maintaining the four stage sound.
Envelope Phaser Set the Sweep switch to Env and you’ve got a whole new pedal under your feet. Now the phaser responds to your picking like an envelope filter/auto-wah would, with the phaser sweep being dynamically controlled by your input signal, creating harmonically complex and very funky sounds.
Six Stage Voice: Groundbreaking New Phaser Algorithm
The Voice knob on the six stage side simultaneously controls over 30 different parameters, all working in harmony for an inspiring musical experience.
Not only do you get thick, juicy, phasing with pure vintage vibe, but as you turn the Voice knob clockwise, our groundbreaking new modified all-pass structure expands the time response of the cascading all-pass filters seamlessly and continuously, adding spaciousness and airiness to the sound.
Explore a range of fresh musical tones that are not a mix of phasing and flanging, but actually something entirely new. Turn the Voice knob to the right for luxurious true flanger effects, and continue to the far end of the range for lush vintage chorus sounds. There are inspiring musical sounds at every point along the dial, and so many ways to make a sound that is truly yours.
What’s Better Than One Phaser? Two.
Zelzah gives you two fully independent, versatile phasers at the touch of a button. Use one at a time, or use both in one of several possible routing configurations.
With each phaser having a wide range of control over its tonal characteristics, the possibilities are near infinite with Zelzah.
Meticulously Tuned: Musical Sounds At Any Settings.
Our team spent months working to perfect each aspect of Zelzah’s sound design, making it so that any combination of settings would yield musically useful tones. Experiment to your heart’s content knowing that organic, lush modulation awaits at every setting.
Zelzah contains modulation multitudes waiting to be discovered. Our groundbreaking 6-Stage phaser algorithm can take you from vibey vintage phasing to full-on flanging with the turn of a knob. Go even further and achieve iconic chorus tones, all with just one pedal.
Zelzah’s 4-Stage side is just as versatile, with everything from classic phasing to warbly vibrato available, and even tones that border harmonic tremolo territory.
Zelzah features full stereo in and out capabilities. It can also receive mono input and still give you stereo output if you’d like to use it as the stereo origin point of your signal path.
When using stereo outs, use the Stereo Spread live edit function to increase the stereo spread between your outputs to create a dimensional stereo image with life and movement.
Being true stereo, Zelzah processes incoming stereo signals independently, with the left input being treated to its own 4-Stage and 6-Stage phasers, and the right input also having its own respective phasers. Pair that with the ability to also process incoming stereo signals in split mode, where the 4-Stage phaser processes the left input only and the right input is processed by the 6-Stage phaser, and Zelzah just may be the most flexible modulation pedal on your board.
MIDI and More: Expanded Control. Want even more control over Zelzah? Connect an expression pedal and enjoy a whole new level of instantaneous, continuous control. Set as many knobs as you like for the heel position and toe position of your expression pedal, and all settings will simultaneously morph throughout the full range of the expression pedal.
If you need more presets, connect a MultiSwitch Plus for three presets available at the press of a footswitch. With full MIDI implementation, you can also control just about every switch, knob, and setting remotely with by sending MIDI commands from your controller or DAW via Zelzah’s EXP/MIDI jack or USB-C connection.
Two independent effects that can be configured and controlled separately and used one at a time or simultaneously in series, parallel, or split configurations
Vintage 4-stage phaser with three phaser sweep modes: classic, barber, and envelope
Groundbreaking new 6-stage phaser algorithm with a continuous range from classic pure 6-stage phasing to flanging to chorus, all with adjustable resonance
True stereo operation means under the hood each half of the pedal has two phasers running side by side (two 4-stage and two 6-stage) or in series, with independently adjustable stereo spread for each
All controls are carefully voiced to produce musically useful sounds at any setting
Adjustable input level switch to allow for both instrument and line level signals
Selectable Buffered or True Bypass
Full featured MIDI implementation via TRS or USB supporting MIDI CCs, MIDI clock sync, access to 300 preset locations
Ins, Outs, and Switches
High impedance ultra low-noise discrete Class A JFET TRS stereo input.
Low impedance independent TS stereo outputs.
Expression pedal input allows the connection of a TRS expression pedal, MiniSwitch, MultiSwitch Plus, or TRS MIDI connection.
USB jack for controlling via MIDI from a computer or for performing firmware updates.
Independent on/off footswitch for each phaser
Premium JFET analog front end
Ultra low noise, high performance 24-bit 96kHz A/D and D/A converters provide uncompromising audio quality
480MHz ARM Superscalar processor
32-bit floating point processing
20Hz to 20kHz frequency response
Audio Input Impedance: 1M Ohm
Audio Output Impedance: 100 Ohm
Strong and lightweight anodized dark purple aluminum chassis
9V DC power supply included
Power requirements: maximum 9 volts DC center-negative, with a minimum of 300mA of current
4.5” deep x 4” wide x 1.75” tall
11.4 cm deep x 10.2 cm wide x 4.4 cm tall
Designed and built in the USA
Instruction manual and other documents to appear here soon
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