DOD FX20-B Stereo Phaser

^# 58

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$45.00 Price Tier: Budget

4.5 (10)

2 Reviews

This product is Vintage or Discontinued

Find out who is using DOD FX20-B

1 community setup

1 wishlisted

18 saved

Page last updated Jul 02, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated July 2, 2026.

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Reviews

Price

5.0 (11)

$45.00 16 available Used

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Average Price: $45

Budget/Beginner

$75

$201+

Price Tier

In the Phaser Effects Pedals category, DOD FX20-B Stereo Phaser is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

Budget

Standard

High-end

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Description

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The DOD FX20-B Stereo Phaser is a versatile gem in the realm of guitar effects pedals, offering musicians a rich tapestry of swirling soundscapes. This pedal is perfect for those looking to add depth and dimension to their guitar tones. Equipped with true stereo outputs, it enables you to create lush, expansive effects that seamlessly integrate into any live or studio setup. The FX20-B's intuitive controls allow you to shape your phase effect from subtle, shimmering textures to deep, modulated swirls, making it suitable for any genre, from classic rock to experimental electronica.

Designed with simplicity and creativity in mind, the FX20-B features a straightforward interface that invites experimentation. With controls for Speed, Depth, and Regeneration, you can easily dial in the perfect phasing effect to suit your musical needs. The all-analog circuitry ensures that your sound remains warm and organic, maintaining the integrity of your instrument's natural tone while adding a layer of dynamic modulation.

Whether you're a seasoned performer or a budding artist, the DOD FX20-B Stereo Phaser offers a reliable, high-quality solution for enhancing your sound. Its robust build and responsive controls make it an essential addition to any pedalboard.

Key Features:

True stereo outputs for expansive soundscapes
All-analog circuitry for warm, organic tones
Controls for Speed, Depth, and Regeneration
Versatile design suitable for various musical styles
Durable construction built for performance reliability

Product specs

Brand	DOD
Model	Stereo Phaser FX20-B
Finish	Silver
Year	1985 - 1998
Made In	United States
Categories	Phaser Pedals
Pedal Format	Standard

FAQs

What type of power supply does the DOD FX20-B Stereo Phaser require?: The DOD FX20-B Stereo Phaser typically requires a 9V DC power supply, which is standard for many guitar pedals. It can also be powered using a 9V battery for convenience during performances.
Can the DOD FX20-B Stereo Phaser be used in a stereo setup?: Yes, the DOD FX20-B is designed to be used in stereo setups, providing a rich, spatial phasing effect that enhances stereo imaging in your sound.
How does the DOD FX20-B Stereo Phaser affect my guitar tone?: The DOD FX20-B Stereo Phaser adds a sweeping, swirling effect to your guitar tone, which can range from subtle modulation to more pronounced, spacey sounds, depending on the rate and depth settings.
Is the DOD FX20-B Stereo Phaser suitable for bass guitars?: Yes, the DOD FX20-B Stereo Phaser can be used with bass guitars, providing a smooth and dynamic phasing effect that complements the lower frequencies.
What are the main controls on the DOD FX20-B Stereo Phaser?: The DOD FX20-B Stereo Phaser features controls for speed and depth, allowing you to adjust the rate of the phasing effect and its intensity to suit your musical style.

Videos

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TheSuperFunAwesomeHappyTimePedalShow

DOD FX20-B Stereo Phaser

TheSuperFunAwesomeHappyTimePedalShow

DOD FX20-B Stereo Phaser

Ben Coombs

DOD FX20-B Stereo Phaser

Ovation Music and Studios Gallatin

DOD FX20-B Stereo Phaser

Pedal Sessions

Reviews

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PROS

Well-built, durable design from the 80s and 90s
Excellent sound quality in stereo application
Offers a range from subtle to intense phasing effects
Features a regen (color) knob for tonal adjustments
Warm, creamy first-generation analog phaser sound
Pedalboard friendly size
Available at a reasonable price point

CONS

Slight volume bump when used in mono setup
May not perform well with heavy distortion settings

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about DOD FX20-B Stereo Phaser.

Features and functionality

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The DOD FX20-B is known for its six-stage phasing with an asymmetrical sweep, giving it a univibe-like sound in some settings.
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Users appreciate the FX20-B's capability to phase shift in a step pattern, although this may also be seen as a malfunction by some.
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The FX20-B has a mellow four-stage phasing effect and produces a tremolo-like sound, especially effective behind delay and fuzz pedals.
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The FX20-B has a second output that provides a different phasing sound, closer to a classic phaser or univibe, when used independently from the main output.
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Comparisons

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The FX20-B is often compared to the EHX Small Stone, though it offers more control options than the latter.
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The FX20-B is described as having a "super swoosh" similar to a Small Stone but more intense, making it a noisemaker option rather than a general phaser.
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User experience

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The pedal is described as dark sounding when engaged, often resulting in a loss of high-end frequencies during use.
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Some owners find that the reliability of the FX20-B can be inconsistent, with issues like step pattern phasing potentially due to cold solder joints.
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Owners appreciate the FX20-B's unique sound quality, with some noting difficulty in finding a satisfactory replacement once lost.
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Users have explored the FX20-B in stereo setups, running it through a Neunaber Immerse and into multiple amps, which can enhance its phasing effects.
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Use cases and applications

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Users find the FX20-B works well both in front of and behind a Fuzz Face, with distinct tonal variations depending on its placement in the signal chain.
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When placed just before or after dirt pedals in the chain, the FX20-B can create a dominating, mid-range compressed tone that may require EQ adjustment.
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Build quality

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Many units are missing battery covers, but replacement covers can be found on Etsy for around $10.
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Some users resort to 3-D printing to replace missing battery covers, though these replacements might not match the original's durability.
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Value and pricing

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A used FX20-B can sell for over $100 on platforms like Reverb, highlighting its value as a collectible pedal.
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4.5 out of 5

Based on 2 Reviews and 10 Ratings

5 star

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2 star

1 star

fernghouly

170

over 8 years ago

Rad

got an 80s one. does what it says on the tin. a nice li'l phase. don't use if distortion is too heavy tho

dxs904

almost 11 years ago

awesome

awesomeisticly awesome, need more phaserrrz

jimmarchi1

41026

11 years ago almost 11 years ago

my buddy Zach has sworn by this phaser since 1996.... it has a similar circuit to the small stone and bad stone by EHX using FETs to phase, but the voicing is completely different.... don't let the cat out of the bag on these, they are still cheap and we don't want them to attain vintage value so we can't afford to buy them up