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Strymon Unveils the Zelzah Multidimensional Phaser

Strymon Zelzah Phaser

Strymon has launched the new Zelzah Multidimensional Phaser. The pedal has two sides – one side delivers vintage four stage and the other side offers six stage phasing. Together, you can get vibrato, gorgeous flanging and chorus, and new sounds never heard before—all instantly musical with great tone all the way across every dial.

Zelzah's four stage side gives you a wide array of classic tones ranging from phasing to vibrato, while the six stage side provides phasing, flanging, chorus, and more. 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.

Each side of Zelzah is true stereo, meaning that under the hood each half of the pedal actually has two phasers running side by side (two four stage phasers and two six stage phasers). The LFO offset between the left and right phaser on each side of the pedal can be adjusted, opening up a world of possibilities for creating a huge stereo image with a single pedal.

In-Depth Tour of Strymon’s Newest Pedal

The four stage side gives you a choice of three phase sweep types: Classic is a single LFO with a warped triangle shape for a familiar vintage sound. Barber can create a seemingly continuous upward or downward sweep, and Envelope allows the phase sweep to be dynamically controlled by your input signal.

The six stage sweep is carefully tuned, and behaves differently as you change Voice (a knob that simultaneously controls over 30 parameters), Depth, and Speed settings. Dial in a slow Chorus and you are getting a true triangle wave sweep, but as you turn the Speed up, the LFO distorts and gets uneven for Leslie type sounds.


• 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 runningside by side (two 4-stage and two 6-stage) with independently adjustable stereo spread for each

• Adjustable input level switch to allow for both instrument and line level signals

• Selectable Buffered vs. True Bypass

• Full featured MIDI accessible via TRS supporting MIDI CCs, MIDI clock sync, access to 300 preset locations (requires Strymon MIDI EXP cable or MIDI > TRS interface)

• Expression pedal input allows the connection of a TRS expression pedal, MiniSwitch, MultiSwitch Plus, or TRS MIDI connection

• Ultra low noise, high performance 24-bit 96kHz A/D and D/A converters provide uncompromising audio quality. Super high performance ARM DSP, 32-bit floating point processing

• True Bypass (electromechanical relay switching) or selectable transparent Analog Buffered Bypass

• Strong and lightweight anodized dark purple aluminum chassis

• 9V DC power supply included. Power requirements: 9V DC center-negative, with a minimum 300mA of current

• Designed and built in the USA

Zelzah carries a US Street price of $349 and is available for purchase at