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Electro Harmonix Worm

 

Review of the Electro Harmonix Worm by The Man in the Jar  

A very much vintage-flavoured offering from Electro-harmonix, reminds me of my old Clone Theory.    

Features of the Electro Harmonix Worm

Construction - Traditional folded construction of brushed metal long-favoured at Electro Harmonix means the Worm will survive just about everything.   

Ins and Outs - There's one input and two outputs. The first output (Effect Out) carries the signal that's been modulated by the Worm, the second (Direct Out) carries the dry, un-modulated signal. In normal operation you'd use the Effect Out. If you were working with a mixing desk or recording console you might choose to use both outputs and blend them at the desk.

Power - Electro Harmonix provide a power supply with the unit, do not attempt to use any other power supply.

Controls - The middle of the three knobs is the Mode selector which sets the modulation being applied. Choose from Wah, Phaser, Tremolo and Vibrato. Below that is the Range knob which sets the sweep of the modulation. At the top is the Rate knob which sets how often the modulation sweeps the Range. Next to the jacks on the front edge there is a two-position slider marked Auto or Manual. When set to Auto the Rate knob operates, When set to Manual the Rate knob is disabled. This enables you to use the Range knob to scoop frequencies and get that fabulous "half-open-wah-pedal" sound so beloved of Brian Robertson. 

 

Sound of the Electro Harmonix Worm

Wah - At high Range and low Rate the Wah delivers a cool disco-funk auto-wah effect. Rhythm guitarists will love this. Beyond 12 o'clock on the Rate knob and things get a bit manic.

Phaser - Works better with a high Rate and a low Range to give a lush chorus-like richness to chords.

Tremolo - A nice lilting effect when set at low Rate and medium Range, think of cowboy film soundtracks.

Vibrato - As Vibrato is warbling the pitch of the note (unlike Tremolo that alters the volume of a fixed pitch), it works best at low Range and a medium Rate, where it adds thickness and character to the sound.

Generally the rule is high Range sounds better with low Rate and high Rate sounds better with low Range. Make sense? 

 

Overall Impressions of the Electro Harmonix Worm

I like the vintage vibe of the Worm, especially as it packs a lot of stuff into a small package. The Phaser isn't the best I've heard but the Auto-Wah more than makes up for that. Players of old-style rock 'n' roll will love the Tremolo and Vibrato. All-in-all a great value-for-money package.  

Buy the Electro Harmonix Worm

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