A Uni-Vibe is a modulation effect that is often labelled as a Chorus/Vibrato but is in fact a phaser. The difference lies in how it's done: the uni-vibe uses a series of staggered filters that are phased, rather than aligned filters like you'd find on a standard phaser. Uni-vibes also do not use op-amp circuits for their sound. The result is that incredible swampy, pulsating effect that you hear on songs such as Jimi Hendrix's 'Machine Gun'.

Should my modulation pedals go before or after my distortion on my pedal board?

Popular consensus would dictate 'after', since the distortion will be flanged, (rather than a flanger being distorted, if you see what we mean) and will therefore sound more obvious and dramatic. If you are using a flanger, this is how you'll achieve those 'jet engine' noises. Not every one does this, though: one very influential moulation user, Eddie Van Halen, had neither a distortion pedal nor an effects loop and so he simply put all of his MXR pedals into the front end of his end and turned everything up. He changed history with his guitar sound so who are we to argue?

How many modulation effects can I use at once?

You can use literally as many as you can get your hands on! Blending modulations and stacking them up can be interesting and rewarding but there does come a point where, without sounding too facetious about it, four flangers doesn't really sound that different than three. With modulation effects, less is very often more, especially if big sonic gestures are being made. Don't let us stop you though: experimentation is what it's all about!

What is the best setting for the single knob on the MXR Phase 90?

Whether you want that awesome 'Eruption' sound or the haunting Pink Floyd 'Shine On' tone, your Phase 90's rate control should be set between nine and ten o'clock. Perfection lies therein.

Did Andy Summers use a Chorus or a Flanger with the Police?

Andy Summers' famously effected sound is responsible for lots of guitarists buying up chorus pedals left, right and centre in a quest to nail that tone. It's a shame for them all because that is most definitely a flanger on Summers' pedalboard. Namely, an Electro Harmonix Electric Mistress. Unlike the Deluxe model which had both Flanger and Chorus settings, Andy's regular Electric Mistress was a Flanger only. Medium settings on most vintage-styled flangers will get you close and, as ever, listen with your ears and not your eyes!

Modulation Pedals | guitarguitar

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BOSS MD-500 Modulation Multi FX Processor (Pre-Owned)

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Dunlop Authentic Hendrix 68 Shrine Series Uni-Vibe Chorus/Vibrato Mini Pedal

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Way Huge Attack Vector Phaser and Envelope Filter

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EarthQuaker Devices Organizer V2 Organ Emulator

£215.00

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EarthQuaker Devices The Depths V2

£199.00

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Fishman AFX Blue Chorus Mini Chorus Pedal

£129.00

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Electro Harmonix Blurst Modulation Filter

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£79.00 £149.00

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Laney Black Country Customs Spiral Array Chorus

£159.00

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Way Huge Smalls Blue Hippo Analog Chorus

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MXR Wylde Audio Phase Pedal

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Ampeg Liquifier Bass Chorus

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£99.00 £128.00

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MXR M279 Deep Phase Mini Pedal

£124.00 £164.99

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MXR Micro Flanger M152

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£132.00

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NUX Mod Core Deluxe MKII Pedal

£79.00 £99.00

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NUX Reissue Analog Chorus Pedal

£39.00 £59.00

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Walrus Audio Polychrome Analog Flanger

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£199.00

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Red Panda Bitmap Bitcrush Fractional Bit Rate with Sample Reduction

£315.00

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MXR Wylde Audio Rotovibe Chorus/Vibrato

£399.00 £439.00

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Universal Audio Brigade Chorus & Vibrato UAFX Pedal

£152.00 £165.00

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Dreadbox Pedals Komorebi Chorus/Flanger

£169.00

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MXR Wylde Audio Chorus Pedal

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£167.00

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Strymon Ultraviolet Vibe Pedal

£259.00

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Fender Waylon Jennings Phaser

£119.00

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Electro Harmonix Walking On The Moon Flanger

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£119.00 £133.00

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Strymon Zelzah Multidimensional Phaser

£329.00

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Landlord FX Dutch Courage Phaser

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£29.00 £39.00

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Landlord FX Watering Hole Flanger

£29.00 £39.00

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EarthQuaker Devices Aurelius Tri-Voice Chorus Pedal

£195.00

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BOSS VB-2W Waza Vibrato

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£249.00

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Dod Phasor 201 Phaser Pedal

£85.00 £99.00

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Fairfield Circuitry Roger That FM Modulator

£329.00

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NUX Super Chorus-Flanger Mini Pedal

£59.00 £79.00

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Foxgear Ballade 80s Analog Chorus

£89.00 £94.00

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Fender Hammertone Chorus

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£94.99

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Fairfield Circuitry Shallow Water Chorus/Flanger

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£329.00

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Expert Advice

Modulation Pedals

Filter

BOSS MD-500 Modulation Multi FX Processor (Pre-Owned)

EarthQuaker Devices Pyramids Flanger

Dunlop Authentic Hendrix 68 Shrine Series Uni-Vibe Chorus/Vibrato Mini Pedal

JHS Pedals 3 Series Chorus

JHS Pedals 3 Series Flanger

MXR M148 Micro Chorus (Pre-Owned)

MXR M148 Micro Chorus (Pre-Owned)

Way Huge Attack Vector Phaser and Envelope Filter

EarthQuaker Devices Organizer V2 Organ Emulator

EarthQuaker Devices The Depths V2

Fishman AFX Blue Chorus Mini Chorus Pedal

Electro Harmonix Blurst Modulation Filter

Laney Black Country Customs Spiral Array Chorus

Way Huge Smalls Blue Hippo Analog Chorus

MXR Wylde Audio Phase Pedal

Ampeg Liquifier Bass Chorus

MXR M279 Deep Phase Mini Pedal

MXR Micro Flanger M152

NUX Mod Core Deluxe MKII Pedal

NUX Reissue Analog Chorus Pedal

Walrus Audio Polychrome Analog Flanger

Red Panda Bitmap Bitcrush Fractional Bit Rate with Sample Reduction

MXR Wylde Audio Rotovibe Chorus/Vibrato

Universal Audio Brigade Chorus & Vibrato UAFX Pedal

Dreadbox Pedals Komorebi Chorus/Flanger

MXR Wylde Audio Chorus Pedal

Strymon Ultraviolet Vibe Pedal

Fender Waylon Jennings Phaser

Electro Harmonix Walking On The Moon Flanger

Strymon Zelzah Multidimensional Phaser

Landlord FX Dutch Courage Phaser

Landlord FX Watering Hole Flanger

EarthQuaker Devices Aurelius Tri-Voice Chorus Pedal

BOSS VB-2W Waza Vibrato

Dod Phasor 201 Phaser Pedal

Fairfield Circuitry Roger That FM Modulator

NUX Super Chorus-Flanger Mini Pedal

Foxgear Ballade 80s Analog Chorus

Fender Hammertone Chorus

Fairfield Circuitry Shallow Water Chorus/Flanger

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