Strymon Zelzah Effects Pedal
Way Back Machine.
Step onto the Zelzah, play a chord, and you will be instantly transported into a world of classic phaser sounds as they were always meant to be, with perfect voice and tons of vibe. A vintage 4 and 6-stage phasing with controls allowing seamless transitions to vibrato, a beautiful flanger and chorus, as well as new sounds never heard before, all instantly musical with superb tone on every dial.
Two effects at once.
Zelzah is actually two different phasers, side by side in a single pedal. The 4-stage side of the Zelzah offers you a wide range of classic tones from phasing to vibrato and beyond, while the 6-stage side offers phasing, flanging, chorus, and everything in between. Create a chorus on one side and a barber pole phaser on the other, or a phaser on one side and a tremolo on the other. Use both sides independently or together in a variety of configurations. Zelzah can become the only modulation pedal you keep on your board.
Choose your 4-stage Phaser sweep
Classic Sweep
The first sweep mode is called "Classic" because it is the classic 4-stage phaser sweep we all know. In this sweep mode, a single LFO with a distorted triangle shape creates that familiar vintage sound.
Barber Sweep
Similar to the visual effect of a barber pole, the Barber Sweep is a continuous rising or falling effect traditionally achieved with frequency shifters. In Zelzah, we used an arrangement of synchronized 4-stage phasers to produce this effect while retaining the 4-stage sound.
Envelope Phaser
Set the Sweep switch to Env and you have a whole new pedal under your feet. The phaser now responds to your playing like an envelope filter/auto-wah would, with the phaser sweep dynamically controlled by your input signal, creating harmonically complex and very funky sounds.
Six Stage Voice: Revolutionary 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 when you turn the Voice knob clockwise, our revolutionary modified all-pass structure seamlessly and continuously extends the temporal response of the cascaded all-pass filters, adding space and airiness to the sound.
Explore a range of never-before-heard musical tones that are not a blend of phasing and flanging, but something entirely new. Turn the Voice knob to the right for true luxurious flanger effects, and continue to the end of the range for lush vintage chorus sounds. There are inspiring musical sounds at every point on the dial, and so many ways to create a sound that truly represents you.
Two-in-one
What’s better than one phaser? Two.
Zelzah offers you two versatile and completely independent phasers at the push of a button. Use one at a time, or use both in one of many possible routing configurations. With each phaser having a wide range of control over its tonal characteristics, the possibilities are nearly endless with Zelzah.
Meticulously tuned
Musical sounds, no matter the setting.
Our team spent months perfecting every aspect of Zelzah’s sound design, so that any combination of settings produces musically useful sounds. Experiment at will knowing that lush, organic modulation awaits at every setting.
Multidimensional modulation
Versatile algorithm
Zelzah contains multitudes of modulations waiting to be discovered. Our revolutionary 6-stage phaser algorithm can take you from vibrant vintage phasing to full flanging by turning a knob. Go even further and get iconic chorus sounds, all with a single pedal. The 4-Stage side of Zelzah is just as versatile, with everything available from classic phasing to wavering vibrato, and even tones bordering on harmonic tremolo.
True stereo
Stereo flexibility.
Zelzah features full stereo input and output capabilities. It can also accept a mono input and give you stereo output if you want to use it as the stereo origin point of your signal chain. When using stereo outputs, use the live editing Stereo Spread function to increase the stereo separation between your outputs to create a dimensional stereo image with life and movement.
Since it is true stereo, Zelzah processes incoming stereo signals independently, with the left input processed by its own 4 and 6-stage phasers, and the right input also having its own respective phasers. Add to that the ability to process incoming stereo signals in split mode, where the 4-Stage phaser processes only the left input and the right input is processed by the 6-Stage phaser, and Zelzah could well be the most flexible modulation pedal on your board.
MIDI and more
Extended control.
Want even more control over Zelzah? Connect an expression pedal and enjoy a whole new level of instant and continuous control. Set as many knobs as you want for heel and toe positions of your expression pedal, and all settings will simultaneously morph across the entire range of the expression pedal.
If you need more presets, connect a MultiSwitch Plus to get three presets available at the press of a footswitch.
With full MIDI implementation, you can also remotely control virtually all switches, knobs, and parameters by sending MIDI commands from your controller or digital audio workstation via the Zelzah’s EXP/MIDI jack or USB-C connection.
Features:
Sound design
- 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.
- Revolutionary new 6-stage phaser algorithm with a continuous range from classic 6-stage phasing to flanging and 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 tuned to produce musically useful sounds, no matter the setting.
- Adjustable input level switch to accommodate instrument and line level signals.
- Buffer or True Bypass selection
- Full MIDI implementation via TRS or USB, supporting MIDI CC, MIDI clock sync, and access to 300 preset slots.
Inputs and outputs
- High-impedance ultra-low noise discrete Class A JFET stereo TRS input.
- Independent low-impedance stereo TS outputs.
- Expression pedal input allows connection of a TRS expression pedal, MiniSwitch, MultiSwitch Plus, or TRS MIDI connection.
- USB port for MIDI control from a computer or for firmware updates.
- Independent footswitch for each phaser.
Audio quality
- Premium analog JFET front end
- 24-bit 96 kHz A/D and D/A converters with very low noise and high performance for uncompromised audio quality.
- 480MHz Superscalar ARM processor
- 32-bit floating point processing
- Frequency response 20 Hz to 20 kHz
- Audio input impedance: 1M Ohm
- Audio output impedance: 100 Ohm
More information
- Solid and lightweight dark purple anodized aluminum chassis
- 9V DC power supply included
- Power required: 9 volts DC maximum center-negative, with a minimum of 300mA current.
- Dimensions: 11.4 cm depth x 10.2 cm width x 4.4 cm height
- Designed and manufactured in the USA
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