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Guyatone PS-104 Crossover Box Auto Wah

Guyatone PS-104 Crossover Box Auto Wah

$69.00 Price Tier: Budget

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Page last updated Jun 30, 2026

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We compare 600+ stores and found this item at 1 store. Prices updated June 30, 2026.

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$69.00 9 available Used

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Average Price: $69

Budget/Beginner

$75

$251+

Price Tier

In the Wah Pedals category, Guyatone PS-104 Crossover Box Auto Wah is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

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Description

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Discover the expressive potential of your guitar with the Guyatone PS-104 Crossover Box Auto Wah. Engineered to bring dynamic modulation to your playing, this pedal offers a unique approach to the classic wah effect by automatically adjusting the wah sweep in response to your playing dynamics. Whether you're looking to add funk-inspired quack or smooth, sweeping textures, the PS-104 provides versatility and precision in one compact unit.

Equipped with a specially designed optical sensor, this auto wah pedal ensures seamless response and exceptional tonal clarity. The PS-104's intuitive control layout includes sensitivity and peak controls, allowing you to tailor the effect to suit your style and guitar setup. With a robust build quality and easy-to-navigate interface, this pedal is designed to withstand the rigors of live performance while maintaining pristine audio quality.

Ideal for both beginners looking to expand their sound and seasoned musicians seeking a reliable auto wah solution, the Guyatone PS-104 Crossover Box Auto Wah delivers consistent performance and adaptability. Whether you're playing in the studio or on stage, this pedal will bring your guitar's voice to life with its dynamic and responsive capabilities.

Key Features:

Automatic wah effect with dynamic response
Special optical sensor for seamless modulation
Sensitivity and peak control knobs
Compact and durable design
Suitable for a variety of musical genres and styles

Product specs

Brand	Guyatone
Model	PS-104 Crossover Box Auto Wah
Finish	Brown
Year	1970s
Made In	Japan
Categories	Filter and Wah Pedals

FAQs

What type of effect does the Guyatone PS-104 Crossover Box Auto Wah produce?: The Guyatone PS-104 Crossover Box Auto Wah produces an automatic wah effect, which modulates the frequency spectrum of your guitar signal to create a dynamic, vocal-like sound.
Is the Guyatone PS-104 suitable for both guitar and bass?: Yes, the Guyatone PS-104 Crossover Box Auto Wah can be used with both guitar and bass, making it versatile for different types of string instruments.
Does the Guyatone PS-104 require a specific power supply?: The Guyatone PS-104 Crossover Box Auto Wah typically requires a 9V DC power supply, which is standard for many guitar pedals, but always check the specific requirements for vintage models.
How does the Guyatone PS-104 differ from a traditional wah pedal?: Unlike a traditional wah pedal that requires manual operation with a foot pedal, the Guyatone PS-104 is an auto wah, meaning it automatically modulates the wah effect based on your playing dynamics.

Videos

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Guyatone PS-104 Crossover Box Auto Wah.

Setup and maintenance

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The switch may require DeoxIT treatment or replacement due to lack of spring-back, indicating a potential maintenance area for long-term reliability.
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Features and functionality

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Owners appreciate the pedal's responsiveness on bass, allowing for a "squonky squank" without sacrificing low-end frequencies.
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One owner finds the pedal excels at producing a distinctive "quack" sound, though with limited versatility beyond that specific tonal character.
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User experience

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The AC jack's looseness is noted, suggesting a need for careful handling or potential reinforcement.
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Use cases and applications

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Experimentation with pedal placement before or after dirt effects can impact tonal outcomes, especially on bass setups.
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Artist usage

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Alex Turner

Guitarist

Arctic Monkeys

Verified via Photo

Alex Turner can be seen with his Guyatone Crossover PS-104 Auto-Wah pedal during Arctic Monkeys live performance at the Kings Theater in Brooklyn, New York City in October 2022. Pictured, you can see it sat on his pedalboard above his distortion pedal. This is the first time Turner has had a Wah style pedal on his board or being used in his music. This pedal can be heard both live and on studio recordings of songs off their 7th LP, The Car. Tracks such as “I Ain’t Quite Where I Think I am” and “Jet Skis On The Moat” feature this pedal prominently and feature this new side of Arctic Monkeys guitar riffs.

The PS-104 was a pedal produced in the 1970’s by Guyatone and is considered to be quite rare. It is a Cross Over BOX Dynamic Envelope Filter style pedal with both Drive and Decay Controls with the latter controlling the periodic time of effect waves. The warm analog auto-wah effect has a distinct treble bite. The effect also varies with the performance dynamics such as a harder/stronger pluck at the strings on a guitar will give a stronger effect. The pedal can vary with how hot the guitar pickups are, also depending on if you have any other pedals before it in the effect chain.

Turner described the PS-104 and it’s sound in an interview when being asked about how he wrote and came up with the riff for “I Ain’t Quite Where I Think I am.” Alex had this to say about the sound “I think really that probably was when finding again that effects pedal in the drawer somewhere and blowing the dust off and before you know it, you’ve got that lick.”