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This guide is for guitarists and bassists seeking versatile, analog modulation effects. The Electro-Harmonix Worm offers a unique combination of Phaser, Tremolo, Vibrato, and a Neo-modulated Wah in a single, robust unit, providing a wide palette of sonic textures. A potential caveat is its specific power requirement, which needs careful attention.
| Model Part Number | WORM |
|---|---|
| Brand | Electro-Harmonix |
The four modes are Phaser, Tremolo, Vibrato, and a Neo-modulated Wah.
No, the Electro-Harmonix Worm requires a specific 24VDC, 100mA power supply, which is included with the pedal. Using a standard 9V supply will not work and could potentially damage the unit.
This mode uses the pedal's internal Low-Frequency Oscillator (LFO) to sweep a filter, similar to a wah pedal, but controlled by the LFO speed and depth, rather than a foot treadle.
Yes, the Worm has an expression pedal input that allows you to control the effect's sweep manually with an optional expression pedal.
The Electro-Harmonix Worm is an all-analog effects processor.
True Bypass means that when the pedal is switched off, it completely removes itself from your signal path, ensuring your pure instrument tone is unaffected.
You can clean the exterior of the pedal with a dry or slightly damp cloth. Avoid using solvents or harsh cleaning agents.
Check all cable connections. Ensure the power adapter is correctly connected and the unit is receiving power. Verify the correct input and output jacks are used. Test with a different instrument cable.
Confirm you are using the correct 24VDC power supply. Ensure the MODE knob is set to a valid effect. Check that the SPEED and DEPTH controls are not set to minimum, which could result in no audible effect. Test the pedal in True Bypass mode to isolate the issue.
Ensure the expression pedal is securely plugged into the correct jack. Verify the expression pedal is functioning correctly by testing it with another compatible device. Make sure the pedal is in a mode that is affected by the expression pedal input.
Ensure all audio cables are properly shielded. Try a different power outlet to rule out power line noise. If using multiple pedals, consider a dedicated isolated power supply for the Worm.
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