Boss DS-1 Keeley Seeing Eye Mod main image

Keeley Boss DS-1 Keeley Seeing Eye Mod

$97.00 Price Tier: Standard

4.5 (2)

1 Critic Review

This product is Vintage or Discontinued

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Page last updated Jul 04, 2026

Pricing and availability

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5.0 (5)

$97.00 11 available Used

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Average Price: $97

Standard/Professional

$80

$181+

Price Tier

In the Distortion Effects Pedals category, Boss DS-1 Keeley Seeing Eye Mod 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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The Boss DS-1 Keeley Seeing Eye Mod is a distinctive take on the classic DS-1 that delivers a refined distortion experience for guitarists seeking both versatility and character in their tone. Known for its robust build and reliable performance, this pedal is enhanced by the Keeley modification, which takes the original DS-1 circuit to new heights. The Seeing Eye Mod brings a dynamic range of distortion tones, from a subtle crunch to a powerful, high-gain roar, making it suitable for a wide array of musical genres.

With the addition of a unique LED component in the circuit, this pedal not only improves visual aesthetics but also significantly impacts the sound profile. The modified circuit includes a Seeing Eye LED, which acts as a clipping diode and enhances the harmonic content, providing a more complex and musical distortion. The pedal's intuitive control layout features tone, level, and distortion knobs, allowing precise sculpting of your sound. Whether you're a professional musician or an enthusiast, the Boss DS-1 Keeley Seeing Eye Mod is designed to meet the demands of any guitarist looking to elevate their sound with both subtlety and authority.

Key Features:

Keeley modification for enhanced tonal flexibility
Integrated Seeing Eye LED for unique harmonic distortion
Classic DS-1 control layout with tone, level, and distortion knobs
Durable construction for reliable performance on stage or in the studio
Suitable for a wide range of musical styles and playing techniques

Product specs

Brand	Keeley
Model	Boss DS-1 Distortion with Ultra and Seeing Eye Mods
Finish	Orange
Year	2010s
Categories	Distortion Pedals

FAQs

What is the Keeley Seeing Eye Mod on the Boss DS-1?: The Keeley Seeing Eye Mod enhances the classic Boss DS-1 by adding more clarity and dynamic range, offering a more transparent distortion tone with increased responsiveness to playing dynamics.
How does the Keeley Seeing Eye Mod affect the tone of the Boss DS-1?: The mod provides a smoother, more refined distortion with improved harmonic content, making it suitable for a wider range of musical styles beyond the original DS-1's capabilities.
Is the Boss DS-1 Keeley Seeing Eye Mod suitable for live performances?: Yes, the Keeley Seeing Eye Mod is ideal for live performances, offering reliable operation and a versatile tonal palette that can cut through a mix effectively.
Does the Boss DS-1 Keeley Seeing Eye Mod work well with other pedals?: The Keeley Seeing Eye Mod is designed to integrate seamlessly with other pedals, maintaining clarity and definition, whether used before or after other effects in your signal chain.
What power supply does the Boss DS-1 Keeley Seeing Eye Mod require?: The pedal requires a standard 9V DC power supply, which is typical for most guitar pedals, or it can be powered by a 9V battery for convenience.

Videos

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maruhachi08

Keeley"DS-1 Seeing Eye Mod"

maruhachi08

Boss DS-1 Mod Shootout - Keeley Ultra vs All Seeing Eye vs Stock

Wilson Guitars

Boss Stock DS-1 vs Keeley Ultra Seeing Eye Mod

gtiglx

BOSS DS-1 Keeley Mod (Ultra, Seeing Eye) Pedal Show

Marcelo Alfradique

Reviews

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PROS

Used by renowned guitarists like Satriani and Vai
Keeley mod offers unique, high-quality sound
Delivers well with 50% of drive sound being notably distinctive
Enhances harmonics for richer guitar tones
Switch allows for increased headroom, offering more dynamic range
LED pulsates to picking attack, providing visual feedback
Can achieve accurate Marshall type tones
Allows for both intense break up and subtle cleanliness in sound

CONS

Similar sound to a regular DS-1, may not justify the mod for some
Slightly buzzy in the mid-range, which may affect tone clarity

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Boss DS-1 Keeley Seeing Eye Mod.

Mods and upgrades

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The Keeley Seeing Eye Mod offers a unique fat switch, though exact changes for this feature aren't widely known among users.
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One user changed three resistor values during their Keeley DS-1 Ultra Mod due to limited parts availability, highlighting potential variability in mod execution.
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LED clippers replace 1n914 diodes for a punchier, crunchier tone, offering a subtle yet distinct tonal choice via toggle switch.
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Features and functionality

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The Keeley mod includes a distinctive white seeing eye and a green active light, providing both functional and aesthetic enhancements.
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The Seeing Eye mode offers a tamer sound with improved harmonic overtones compared to the standard DS-1, making it ideal for clean channel enhancements.
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Users highlight the aesthetic design where the LED replaces the "O" in "Tone," combining visual appeal with functionality.
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The Seeing Eye Mod may not reduce gain; owners suggest socketing D4/D5 for experimenting with different diodes to adjust gain levels.
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Use cases and applications

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Owners appreciate the pedal for achieving a "quiet loud quiet" dynamic, reminiscent of 90s grunge tones, especially when paired with clean channels.
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The DS-1 with the mod excels in playing bands like Red Fang, enhancing pinch harmonics and lending a nostalgic sound.
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User experience

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The Ultra mode is described as chaotic and may better serve as a third dirt channel, rather than a simple on/off effect, offering versatility in sound shaping.
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Modding Boss enclosures requires intermediate soldering skills, especially for wiring LEDs and diodes to switches; clips can help hold parts during the process.
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Comparisons

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Some owners report the 40th anniversary DS-1, despite using surface-mounted parts, sounds similar to older versions, countering expectations of degradation.
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Critic Reviews

Legendary Tones - Keeley Electronics DS-1 Seeing Eye Mod

legendarytones.com

The Keeley DS-1 Seeing Eye Mod takes an already popular pedal and elevates it to new heights, addressing the stock DS-1's limitations by smoothing out harsh high frequencies and enhancing gain quality. This modded version shines with its ability to replicate high-gain tones akin to modern Marshall amps, providing a rich, harmonic distortion that's suitable for hard rock and metal. However, it's not for those seeking classic rock or blues tones, as it's too aggressive for such genres. With premium components and a visually appealing diode feature, the DS-1 SEM is a steal at $95, making it a top pick for contemporary distortion enthusiasts.

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4.5 out of 5

Based on 0 Reviews and 2 Ratings

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Steve Vai

Guitarist

Whitesnake

Verified via Robertkeeley

"I felt very lucky when Steve Vai contacted me after hearing the DS-1 Seeing Eye Mod. Afer getting two pedals from us (one to ship to Joe Satriani) he sent two of his own pedals for us to modify. (...) So, I sat down to mod these beauties while listening to Live in an Ultra World.“ - Robert Keeley