Pettyjohn Electronics Filter EQ

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Page last updated Apr 24, 2026

Pricing and availability

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Price

Average Price: $195

Standard/Professional

$70

$251+

Price Tier

In the Filter Effects Pedals category, Pettyjohn Electronics Filter EQ is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Description

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Unleash the full potential of your guitar tone with the Pettyjohn Electronics Filter EQ. This meticulously crafted filter effects pedal is a quintessential tool for musicians who crave precision and warmth in their sound. The Filter EQ is not just any pedal; it's a gateway to a realm of sonic versatility, allowing you to shape and sculpt your audio landscape like never before.

At its core, this pedal boasts an all-analog EQ that ensures your sound remains authentic and rich. The dual rail power section is ingeniously designed to double the internal voltage, operating between 18-36V, which provides increased headroom and clarity. The inclusion of the Burr Brown OPA2134 Op-Amp guarantees a pristine signal path, renowned for its superior audio fidelity. Whether you're dialing in the perfect mid-scoop or boosting the lows, the Filter EQ is your partner in crafting a distinctive sound signature.

Join our vibrant musician community today and discover how the Pettyjohn Electronics Filter EQ can become an integral part of your setup. Explore the nuances of your instrument with a pedal that promises not just performance, but a lasting impact on your musical journey.

Key Features:

All analog EQ
Dual Rail power section for increased headroom
Operates between 18-36V
Burr Brown OPA2134 Op-Amp for superior audio fidelity

Product specs

Brand	Pettyjohn Electronics
Model	Filter EQ
Year	2010s
Made In	United States
Categories	EQ Pedals
Pedal Format	Standard

FAQs

What type of EQ is the Pettyjohn Electronics Filter EQ?: The Pettyjohn Electronics Filter EQ is a parametric EQ pedal, allowing precise control over frequency bands to shape your guitar tone effectively.
Can the Pettyjohn Filter EQ be used with both electric and acoustic guitars?: Yes, the Pettyjohn Filter EQ is versatile and can be used to enhance the tone of both electric and acoustic guitars.
Does the Pettyjohn Filter EQ require a specific power supply?: The Pettyjohn Filter EQ requires a standard 9V DC power supply, commonly used with many guitar pedals.
How does the Pettyjohn Filter EQ affect the guitar signal?: The Pettyjohn Filter EQ provides detailed control over your guitar's frequency response, allowing you to boost or cut specific frequencies for a tailored sound.
Is the Pettyjohn Filter EQ suitable for live performances?: Yes, the Pettyjohn Filter EQ is designed for both studio and live use, offering robust build quality and reliable performance on stage.

Videos

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Shawn Tubbs

Pettyjohn Filter In-depth Demo Video by Shawn Tubbs

Shawn Tubbs

Pettyjohn Electronics Filter EQ pedal // Demo by David Dayton

David Dayton

Reviews

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PROS

Extremely low noise even with gain boosting
Enhances note separation and clarity
Versatile for electric, acoustic, bass, and mandolin
Intuitive and useful sound shaping capabilities
Eliminates boominess and woofiness effectively
Subtle high-end boost without harshness
Built like a tank, very durable
Perfectly tuned frequency bands for optimal EQ
Always-on pedal, versatile for live and recording

CONS

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Pettyjohn Electronics Filter EQ.

Comparisons

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The MAGIQ's 8 adjustable mid frequencies differ from the FILTER's static 460Hz, impacting how each handles mid-range tones.
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The upgraded "Magiq" model adjusts the mid frequency bands and changes the signature 460Hz setting to 480Hz, potentially altering the EQ's impact on sound.
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Features and functionality

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The MAGIQ's EQ offers a 8dB boost/cut, contrasting with the FILTER's more aggressive 12dB, affecting tone shaping capabilities.
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The PettyJohn Filter improves tone with a toggle switch that assigns the 460Hz band to the MID knob, enhancing clarity and depth, especially with reverb or delay.
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Running the PettyJohn Filter at 18V enhances its performance, offering a cleaner sound and more headroom compared to standard 9V operation.
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Build quality

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MAGIQ utilizes WIMA and tantalum capacitors, known for a smooth, Neve-console-like sound, differing from the FILTER's focused WIMA and electrolytic setup.
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User experience

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Owners found the FILTER uniquely opens high frequencies without adding treble, a trait not replicated in the MAGIQ.
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Owners report that finding an original Filter pedal is challenging due to its three-year out-of-stock status, highlighting its desirability and perceived value.
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Value and pricing

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The MAGIQ is perceived as a rich, warm EQ with a vintage console vibe, which may justify its price to some but not if seeking the FILTER's clarity.
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Use cases and applications

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The FILTER excels with humbuckers, clearing muddy tones around 460Hz, especially beneficial for Les Pauls with added reverb or delay.
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The Filter is known for creating a more 3D sound even with knobs set flat, making it a popular choice for always-on EQ settings.
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Critic Reviews

Pettyjohn Electronics Filter EQ | Delicious Audio

delicious-audio.com

Pettyjohn Electronics' Filter EQ delivers a powerful EQ shaping experience for guitarists, with its semi-parametric design and three individual bands that cover the guitar's frequency range effectively. The pedal's standout feature is its high headroom circuit, ensuring low noise and distortion while providing up to 12dB of boost or cut. The Low band offers a choice between a bell filter and a Low shelf, maintaining clarity even at high boosts. The High band brings sweet articulation or smooths harsh overtones with console EQ-like transparency. The MID band, featuring a premium inductor-driven bell filter, brings mids to life with rich harmonics. While the pedal excels in tonal flexibility and analog warmth, some users may find the array of options slightly overwhelming if they prefer simpler setups. Overall, a fantastic tool for those seeking detailed control over their guitar's tone.

positive

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