Photo of Maestro MP-1 Phaser in a pedalboard, studio, and guitar

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Maestro MP-1 Phaser

$295.00 Price Tier: High-end

This product is Vintage or Discontinued

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3 community setups

1 wishlisted

5 saved

Page last updated Jun 11, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated June 11, 2026.

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Reviews

Price

5.0 (11)

$295.00 13 available Used

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Average Price: $295

High-end/Boutique

$75

$201+

Price Tier

In the Phaser Effects Pedals category, Maestro MP-1 Phaser is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

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Description

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Discover the sonic legacy with the Maestro MP-1 Phaser, a true pioneer in the world of phase shifters. This pedal, revered for its role in shaping the sound of iconic tracks, offers a blend of classic vibe and modern functionality. Crafted with meticulous attention to detail, the MP-1 owes its unique sound characteristics to the legendary Moog-designed internals, ensuring that every twist of its knobs takes you closer to sonic nirvana. Whether you're looking to add a subtle swirl or a dramatic sweep to your sound, the Maestro MP-1 Phaser stands ready to deliver, making it an indispensable tool for guitarists seeking to elevate their musical expression.

Key Features:

Moog-designed internals for unparalleled sound quality
Adjustable phase shifting for precise control over your sound
Durable construction designed for longevity and consistent performance
Ideal for achieving classic tones or experimenting with new sonic landscapes
Easy to integrate with any pedalboard setup for maximum flexibility

Product specs

Brand	Maestro
Model	Phaser MP-1
Finish	Black
Year	1976 - 1978
Made In	United States
Categories	Phaser Pedals

FAQs

What is the sound character of the Maestro MP-1 Phaser?: The Maestro MP-1 Phaser is known for its warm, vintage sound that adds a rich, swirling modulation to your tone, making it ideal for classic rock and psychedelic music.
Is the Maestro MP-1 Phaser suitable for both guitar and bass?: Yes, the Maestro MP-1 Phaser works well with both guitar and bass, providing a smooth and musical phasing effect that complements the tonal characteristics of both instruments.
How does the Maestro MP-1 Phaser compare to modern phaser pedals?: The Maestro MP-1 Phaser offers a classic, analog phasing effect with a distinctive vintage tone, which might be more organic compared to modern digital phasers that often provide more control and versatility.
Does the Maestro MP-1 Phaser require a specific power supply?: The Maestro MP-1 Phaser typically operates with a standard 9V battery, common for vintage pedals, but users should confirm compatibility with their setup as vintage pedals may have unique power requirements.
What are the main controls on the Maestro MP-1 Phaser?: The Maestro MP-1 Phaser features basic controls for adjusting the speed and depth of the phasing effect, allowing users to tailor the modulation to their preference.

Videos

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Guitar Pedal Demos

Maestro MP-1 Phaser CLEAN

Guitar Pedal Demos

Maestro MP-1 Phaser (with overdrive)

Guitar Pedal Demos

Reviews

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PROS

Built like a tank, durable design
Oversized side knobs for easy foot adjustments
Unique tone preservation, doesn’t color the guitar's original tone
Offers a wide range of sounds, from subtle to lush and wild
Designed by Bob Moog, ensuring high-quality sound engineering
Easy to engage with pedal acting as the switch
Maintains clarity even with heavy overdrive
Capable of slow phasing while retaining bottom end
Vocal mid sweep feature for dynamic sound effects
Appreciates in value, making it a good investment

CONS

Operates on 9V battery only, limiting power options
Not serviceable without potentially damaging the unit

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Maestro MP-1 Phaser.

Comparisons

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The Moogerfooger phaser is noted for its higher tweakability, suggesting it offers more control options than the MP-1.
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Some users prefer the Small Stone phaser over the MP-1, indicating a different tonal preference or feature set.
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Some users prefer the MP-1's unique sound over the popular Phase 90 and Small Stone phasers, highlighting its distinct tonal qualities.
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The Maestro MP-1 is noted for its vintage phase sound, contrasting with the more modern tones of MXR Phase 90.
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The Maestro MP-1 is described as surpassing the Mutron Phasor in liveliness and richness.
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Mods and upgrades

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Madbean offers a DIY circuit board called the Stage Fright to replicate the MP-1 sound, popular among enthusiasts.
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Madbean offers PCB replicas for the MP-1, providing an option for enthusiasts to build their own version if original units are unavailable.
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User experience

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It's implied that the unique foot controls and design of the MP-1 contribute significantly to its appeal among players.
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It's been noted that previous PCB kits for the MP-1 were well-regarded for their layout, despite no longer being in production.
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Owners report the Maestro MP-1's design is not ideal for pedal boards due to its large size.
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Other

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Cloning the MP-1's circuit is feasible, but replicating the original enclosure is considered cost-prohibitive.
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Features and functionality

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The MP-1 is a 6-stage phaser, providing a more complex phase effect compared to more common models like the MXR Phase 90.
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The Maestro MP-1 features two large wheels for foot manipulation, allowing on-the-fly adjustments during performances.
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