Zelzah support

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Zelzah is a dual modulation pedal with two independent stereo phaser effects that can be configured in series with the 6-Stage phaser feeding into the 4-Stage phaser, parallel with both phasers mixed together, or split mode which routes each phaser to its own output when used in stereo.  Each side can be used independently or combined in a variety of configurations

The 4-Stage phaser can provide phaser and vibrato sounds with 3 different sweeps: a classic rising and falling LFO, a barber pole sweep which provides a constantly rising or falling LFO, or you can controlled the sweep of the effect with the input dynamics using the envelope setting.

The versatile 6-Stage phaser has the ability to provide phasing along with flanging and chorus sounds with the turn of the VOICE knob.

Zelzah can be controlled externally via the EXP/MIDI jack using an expression pedal for continuous control over any of the knobs, a Strymon MiniSwitch for access to a single preset or tap tempo control of the 6-Stage phaser, and MIDI control to provide access to and control of the 300 available presets.

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Connecting to Zelzah’s Input

Zelzah has a single input that will work with MONO or STEREO TRS input signals depending on the setting of the Input Selector switch on the back of the pedal.  The input impedance is 1 Meg Ohm.

Zelzah can accept Instrument (-10dB) or Line Level (+4dB) signals up to +8dBu.  If using Line Level signals, please make sure to set the INPUT LEVEL to LINE (power up mode).

***NOTE:  Never connect the speaker output from an amplifier into Zelzah!!!***

• To set the INPUT LEVEL on Zelzah:
  • Press and hold the ON (6-STAGE) footswitch while connecting power to Zelzah until both LEDs start blinking.
  • Release the footswitch and turn the SPEED (4-STAGE) knob to select the INPUT LEVEL.  The status will be shown on the FAV LED:
    • Instrument Level: GREEN (default) – Input headroom set for guitar level.
    • Line Level: RED – Use with line level source such as a keyboard or synthesizer.  Adds 10dB of headroom.

Connecting to Zelzah’s Outputs

Zelzah can be set to output in mono or stereo at unity with the input level signal.  Use OUT L for mono output connections.  When the right output is connected for stereo connections, the bypass mode is automatically set to buffered bypass.  The output impedance is 100 Ohm.

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Set MIDI Output Mode

The MIDI Output mode must be set to determine what kind of MIDI data is sent out by Zelzah.  ***NOTE: If you are only sending MIDI data to Zelzah or if you are using the Strymon MIDI EXP cable, the MIDI Output mode must be set to OFF.***

• Press and hold down the ON (4-STAGE) footswitch while connecting the pedal to power.
• When the LEDs stop blinking, release the footswitch and turn the MIX knob to select what kind of MIDI data is sent from Zelzah to other MIDI devices.  The ON (4-STAGE) LED will show the status:
  • RED – OFF (default) – No MIDI messages are sent out of Zelzah.
  • BLUE – THROUGH – Incoming MIDI messages are sent to the MIDI OUT without any additional MIDI messages generated by Zelzah.
  • WHITE – SEND CC, PC, OTHER – MIDI CC PC, and Sysex messages generated by Zelzah.
  • GREEN – SEND CC, OTHER – MIDI CC and Sysex messags generated by Zelzah are sent to the MIDI OUT.
  • PURPLE – SEND PC, OTHER – MIDI PC messages generated by Zelzah are sent to the MIDI OUT.
  • AMBER – SEND OTHER – Sysex messages generated by Zelzah are sent to the MIDI OUT.

MIDI Clock Sync

Once you have configured Zelzah to communicate via MIDI, you can set the pedal to synchronize to incoming MIDI clock.

When Zelzah is sync’d to MIDI clock, the SPEED knobs will each act as a multiplier or divider of the incoming clock tempo.  The synchronized SPEED mult/div settings from left to right are:

• • x4, x3, x2, x1 (same as incoming clock) at 12 o’clock noon, 1/2, 1/3, 1/4

To set whether Zelzah will respond to incoming MIDI clock:

1. Press and hold the ON (6-STAGE) footswitch.  Once both LEDs flash, release the footswitch.
2. Turn the SPEED (6-STAGE) knob to sync Zelzah with MIDI clock.  Both LEDs will momentarily change color to indicate the current status as the knob is turned.
   1. RED – OFF (default) – Zelzah will not respond to MIDI clock.
   2. BLUE – ON – Zelzah will respond to MIDI clock.

The MIDI Clock setting is saved per Favorite setting or MIDI preset.

Saving and Recalling Presets on Zelzah with MIDI

Saving Presets via MIDI

***NOTE: Saved Favorite or MIDI presets on Zelzah will store the settings of all the knobs and toggle switches on the pedal as well as the individual bypass states of the 4-Stage and 6-Stage sides of the pedal.***

With the EXP/MIDI jack set to MIDI mode, the currently loaded settings can be saved to any of Zelzah’s 300 preset locations at any time.

• To initiate the SAVE process, press and hold the ON (4-STAGE) footswitch.  The ON (4-STAGE) LED will start blinking BLUE.
• Send a MIDI Program Change message from your connected MIDI device to Zelzah.  The LED will stop flashing and Zelzah will save the settings to the preset location that corresponds with the MIDI Program Change message it received.
  • To save a preset to the currently loaded preset location, simply press the ON (4-STAGE) footswitch once again while the LED is flashing.

Recalling  Presets

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Yes, Zelzah is true stereo. It has a single TRS input jack that can receive two TS connections when using a TRS stereo adapter. Since Zelzah is true stereo, that means that there is an individual 4-Stage and 6-Stage phaser for signals processed on the left side of the pedal, and another 4-Stage and 6-Stage phaser for signals on the right side.

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The 4-Stage and 6-Stage phasers on Zelzah can be routed in one of 3 ways:

• Series – GREEN (default) – Output of the 6-Stage phaser feeds into the 4-Stage phaser when both sides are engaged.
• Parallel – BLUE – Output of both the 4-Stage and 6-Stage phasers are mixed to the outputs while maintaining stereo independence of the LEFT and RIGHT signals.
• Split – RED – Sets both the 4-Stage and 6-Stage phasers as mono effects that are sent to separate outputs when using stereo output.  Output of the 4-Stage phaser goes to OUT L, and output of the 6-Stage phaser goes to OUT R.

To change the signal routing on Zelzah:

1. When the pedal is already on, press and hold the ON (6-STAGE) footswitch.  Once both LEDs flash, release the footswitch.
2. Turn the VOICE knob to select the desired routing option which will be indicated by the color of the ON (6-STAGE) LED.
3. Press either footswitch to exit and store the routing option.

*NOTE: The Signal Routing is saved independently per Favorite setting or MIDI preset.

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The polarity of the 4-Stage barber phaser can be can be adjusted for positive (rising) or negative (falling) modulation.

To adjust the polarity of the 4-Stage barber phaser:

1. Press and hold the ON (6-STAGE) footswitch.  Once both LEDs flash, release the footswitch.
2. Turn the SPEED (4-STAGE) knob to adjust the polarity of the 4-Stage phaser.  The ON (4-STAGE) LED will change color to indicate the current status as the knob is turned.
   1. Negative – RED – continuously falling LFO
   2. Positive – BLUE (default) – continuously rising LFO
3. Press either footswitch to exit and store the Barber Polarity setting.

*NOTE: The Barber Polarity setting is saved independently per Favorite setting or MIDI preset.

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To set the Input Level on Zelzah:

• Press and hold the ON (6-STAGE) footswitch while connecting power to the pedal. Once both LEDs flash, release the footswitch.
• Turn the SPEED (4-STAGE) knob to select the Input Level mode. The ON (4-STAGE) LED will change color to indicate the current status as the knob is turned.
  • Instrument: GREEN (default) – Input headroom set for guitar level source.
  • Line: RED – Use with line level source, such as a keyboard or synthesizer. Adds 10dB of headroom.
• Press either footswitch to store the Input Level mode and begin using Zelzah.

NOTE: Input Level is a global setting persistent across power cycles and is not saved per preset.

4-Stage and 6-Stage Headroom

Though both the 4-Stage and 6-Stage phasers on Zelzah have more headroom than most analog phasers, the 6-Stage phaser has a bit less headroom than the 4-Stage phaser by the nature of the signal path.  This means it is easier to saturate the signal when using the 6-Stage phaser when feeding Zelzah an audio input signal that is hotter than instrument level such as when using a synth or placing the pedal within the effects loop of an amplifier.  This saturation is normal, but if you would like to avoid this, you can either set the pedal’s input level to LINE level mode, or turn down the volume level feeding Zelzah’s input.

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From the factory, Zelzah’s bypass mode is set to True Bypass with the option to be set to Buffered Bypass.  There are several benefits to setting Zelzah to Buffered Bypass mode:

• Preserves the high frequency response of your guitar signal through your pedal chain and long cable runs.
• Helps maintain signal levels when  the pedal is both bypassed and engaged when there is an impedance mismatch between the pedals’ output and the device it is connected to.
• If there is DC offset in the audio signal, it helps eliminate popping in the audio when engaging and bypassing the pedal.

To change the bypass mode on Zelzah:

• Press and hold the ON (6-STAGE) footswitch while connecting power to the pedal. Once both LEDs flash, release the footswitch.
• Turn the SPEED (6-STAGE) knob to select True Bypass or Buffered Bypass. The ON (6-STAGE) LED will change color to indicate the current status as the knob is turned.
  • True Bypass: GREEN (default)
  • Buffered Bypass: RED
• Press either footswitch to store the Bypass mode and begin using Zelzah.

NOTE: Bypass mode is a global setting that is persistent across power cycles and is not saved per preset.