Seymour Duncan Quarter Pound Jazz Bass Pickup Set SJB-3, (Nearly New)

The Seymour Duncan Quarter Pound Jazz Bass Pickup Set is a powerful upgrade for 4-string Jazz Bass-style instruments, delivering increased output, exceptional attack and the aggressive tonal character that has made the Quarter Pound range a favourite among rock, punk and alternative bassists.

Featuring Seymour Duncan's distinctive ¼-inch diameter Alnico V rod magnets, the SJB-3 Quarter Pound pickups are designed to provide a fuller, more muscular response than traditional vintage-output Jazz Bass pickups, while retaining the articulation and clarity associated with the classic single-coil design.

The calibrated neck and bridge pickups deliver punchy lows, powerful attack and detailed high frequencies, making them particularly effective for aggressive fingerstyle playing, slap bass and pick-driven rock tones.

The neck pickup features reverse-wound, reverse-polarity (RWRP) construction, allowing the pair to provide hum cancellation when both pickups are used together.

This particular set is in Excellent Condition and has never been used or installed. Both pickups have been tested to ensure there are no issues, providing additional reassurance regarding their condition and operation.

The set is supplied in its original box, complete with all accompanying installation hardware, making it an excellent option for anyone looking to upgrade their existing Jazz Bass.

At A Glance

Detail	Information
Brand	Seymour Duncan
Model	Quarter Pound Jazz Bass Set
Model Number	SJB-3S
Configuration	Neck & Bridge Pickup Set
Colour	Black
Pickup Type	Passive Single-Coil
Condition	Excellent – Unused
Testing	Tested with No Issues Found
Installation History	Never Used or Installed
Hardware	All Included
Packaging	Original Box

Pre-Owned Condition Report

Excellent Condition – Never Used

This Seymour Duncan Quarter Pound Jazz Bass Pickup Set is presented in Excellent Pre-Owned Condition.

The pickups have never been used or installed, making this an especially appealing opportunity to purchase a premium pickup upgrade in exceptionally well-preserved condition.

Although unused, the set is being offered as pre-owned equipment rather than sold as factory-new stock.

Tested with No Issues Found

Both pickups have been tested to ensure there are no issues.

This provides additional reassurance for the buyer, while preserving the set's unused status.

Original Box & Complete Hardware

The set comes in its original Seymour Duncan box, with all accompanying installation hardware included.

This makes it a practical choice for a pickup replacement or upgrade project.

What's Included

• Seymour Duncan Quarter Pound Jazz Bass Neck Pickup

• Seymour Duncan Quarter Pound Jazz Bass Bridge Pickup

• Complete Accompanying Installation Hardware

• Original Box

Key Features

• Seymour Duncan SJB-3S Quarter Pound Set: Matching neck and bridge pickup configuration for Jazz Bass-style instruments.

• ¼-Inch Alnico V Rod Magnets: Oversized pole pieces for increased attack and powerful tonal response.

• High-Output Single-Coil Design: Delivers a muscular sound while retaining clarity and articulation.

• Calibrated Neck & Bridge Pickups: Designed to work together as a matched set.

• RWRP Neck Pickup: Provides hum cancellation when both pickups are used together.

• Punchy Low Frequencies: Particularly appealing for rock and aggressive bass playing.

• Detailed High-End Response: Maintains definition and clarity.

• Wax-Potted Construction: Helps minimise unwanted microphonic squeal.

• Passive Electronics: No battery or onboard preamp required.

• Black Pickup Covers: Traditional Jazz Bass appearance.

• Made in the USA: Hand-built by Seymour Duncan in Santa Barbara, California.

• Excellent Condition: Never used or installed.

• Tested: Both pickups checked with no issues found.

• Complete Hardware: All accompanying installation hardware included.

• Original Packaging: Supplied in its original box.

Why You'll Love It

The Seymour Duncan Quarter Pound Jazz Bass set is an ideal choice for bassists who want to give their instrument additional power, punch and presence.

Traditional Jazz Bass pickups are celebrated for their articulation and versatility, but some musicians prefer a stronger, more assertive response when playing heavier music or competing with distorted electric guitars.

The Quarter Pound set addresses this through its oversized Alnico V pole pieces and hotter winding design, delivering a powerful sound with excellent attack.

The result is a pickup set capable of producing aggressive rock tones while retaining enough clarity for detailed fingerstyle playing and slap bass.

This particular set is especially appealing because it has never been installed, has been tested with no issues found and includes the original box and all hardware.

Detailed Features & Benefits

Powerful Quarter Pound Design

The Quarter Pound Jazz Bass pickups take their name from their oversized ¼-inch diameter Alnico V rod magnets. Combined with Seymour Duncan's specialised coil winding, these large pole pieces help produce a powerful signal with strong attack, full-bodied low frequencies and excellent note definition. The design is especially effective for players seeking greater presence and authority from a traditional Jazz Bass-style instrument.

High-Output Single-Coil Character

Although designed to deliver a more aggressive sound than traditional vintage-output pickups, the Quarter Pound set retains the clarity associated with genuine single-coil construction. This combination allows bassists to achieve thick, punchy tones without completely sacrificing articulation. It works particularly well when the bass needs to cut through a dense band mix.

Calibrated Neck & Bridge Pickups

The SJB-3S set includes dedicated neck and bridge pickups, designed to complement each other. The neck pickup delivers a full, rounded response, while the bridge pickup provides additional focus and bite. Blending the two creates a balanced sound with strong attack and low-end definition, giving players the familiar tonal flexibility of the Jazz Bass design.

Reverse-Wound, Reverse-Polarity Neck Pickup

The neck pickup features reverse-wound, reverse-polarity construction relative to the bridge pickup. This allows the pair to provide hum cancellation when both pickups are operated together at equal levels, reducing the unwanted noise commonly associated with single-coil pickups. When either pickup is used individually, normal single-coil noise characteristics may still be present.

Excellent Response for Pick Playing

The powerful output and pronounced attack of the Quarter Pound design make it particularly appealing to bassists who favour a pick. Its strong midrange presence and defined high frequencies help individual notes remain audible beneath distorted guitars, making it especially effective for punk, alternative rock and heavier musical styles.

Dynamic Fingerstyle & Slap Performance

The Quarter Pound set is not limited to aggressive pick playing. Its full low-frequency response and detailed high-end character also make it suitable for expressive fingerstyle performance. Players using slap techniques can benefit from the pickups' immediate attack and clear note definition, creating a punchy and responsive sound.

Passive Operation

The SJB-3 Quarter Pound pickups use passive electronics, meaning no battery or dedicated onboard preamp is required. They can operate through a conventional Jazz Bass-style passive wiring arrangement, making them an attractive upgrade for players who want greater output without introducing additional active circuitry.

Traditional Black Jazz Bass Appearance

Despite their powerful tonal character, the Quarter Pound pickups retain the familiar narrow Jazz Bass pickup format. Their black covers provide a classic, understated appearance, with the distinctive oversized magnetic pole pieces offering a subtle visual indication of the upgraded design.

American-Made Seymour Duncan Construction

The Quarter Pound Jazz Bass pickups are hand-built by Seymour Duncan in Santa Barbara, California. Their design incorporates Alnico V rod magnets, traditional Forbon flatwork and wax potting, reflecting the manufacturer's established pickup construction methods. This combination has helped make the Quarter Pound range a popular aftermarket option for bassists seeking a stronger, more assertive sound.

Who Is It For?

Rock Bassists: Ideal for musicians seeking powerful attack and excellent note definition.

Punk Players: Particularly effective for aggressive pick-driven bass tones.

Alternative & Indie Musicians: Adds punch and presence to Jazz Bass-style instruments.

Metal Bassists: Offers a more assertive response for heavier arrangements.

Slap & Fingerstyle Players: Provides strong attack with full low frequencies.

Bass Guitar Upgrades: An attractive replacement option for compatible passive Jazz Bass-style instruments.

Compatibility & Installation

The Seymour Duncan SJB-3 Quarter Pound set is designed for 4-string Jazz Bass-style instruments, using dedicated neck and bridge pickups.

The pickups are intended as direct replacements for standard American Jazz Bass pickup dimensions.

However, not all Jazz Bass-style instruments use identical pickup routs. Some Mexican-made Fender Jazz Bass models and other manufacturers' instruments have used different neck and bridge pickup dimensions.

We recommend checking the dimensions of your existing pickups and pickup cavities before purchasing.

Installation requires the pickups to be connected to the instrument's control circuit, typically using soldered connections.

Professional installation is recommended for customers who are not familiar with guitar electronics or soldering work.

How It Compares

Quarter Pound SJB-3 vs Seymour Duncan Vintage SJB-1

The SJB-1 Vintage Jazz Bass pickups are designed to reproduce traditional Jazz Bass tones, with a moderate output and familiar vintage character.

The SJB-3 Quarter Pound set offers a stronger, more aggressive response, making it particularly appealing for rock and heavier musical styles.

Quarter Pound SJB-3 vs Seymour Duncan Hot SJB-2

The SJB-2 Hot Jazz Bass pickups provide increased output and a warmer, midrange-focused character compared with vintage designs.

The Quarter Pound SJB-3 set places greater emphasis on attack and clarity alongside its powerful output, making it particularly effective for assertive bass playing.

Quarter Pound SJB-3 vs Active Bass Pickups

Active pickups and onboard preamps can provide additional tonal shaping and output options, but usually require a battery or dedicated power source.

The Quarter Pound pickups achieve their strong response through passive magnetic design, making them attractive for players who prefer straightforward electronics.

Technical Specifications

Specification	Details
Product Type	Electric Bass Pickup Set
Brand	Seymour Duncan
Series	Quarter Pound
Model	SJB-3S
Pickup Configuration	Neck & Bridge
Suitable Instrument	4-String Jazz Bass-Style Bass Guitar
Pickup Construction	Single-Coil
Electronics	Passive
Magnet Type	Alnico V
Pole Piece Diameter	¼" / 6.35mm
Neck Pickup	SJB-3N
Bridge Pickup	SJB-3B
Neck DC Resistance	Approx. 13.9 kΩ
Bridge DC Resistance	Approx. 14.61 kΩ
Neck Resonant Peak	Approx. 4.3 kHz
Bridge Resonant Peak	Approx. 3.9 kHz
Neck Pickup Polarity	RWRP Relative to Bridge
Wiring	Single-Conductor
Pickup Covers	Black
Construction	Wax-Potted
Country of Manufacture	USA
Condition	Excellent – Unused
Testing	Tested with No Issues Found
Included Hardware	Complete Installation Hardware
Packaging	Original Box

Electrical values are Seymour Duncan's published nominal specifications for the SJB-3 pickup design, rather than measurements from this individual set.

Power Requirements

These pickups are passive and do not require a battery or external power supply.

They are intended for connection to a compatible bass guitar wiring circuit.

Fair Deal Music Expert Verdict

The Seymour Duncan Quarter Pound Jazz Bass Set is a fantastic upgrade for bassists who appreciate the classic Jazz Bass format but want a stronger, punchier and more aggressive sound.

The oversized Alnico V magnets deliver impressive attack and presence, while the traditional single-coil construction maintains the articulation that makes Jazz Bass instruments so versatile.

The RWRP configuration also provides useful hum cancellation when both pickups are used together.

What makes this particular set especially attractive is its condition.

These pickups have never been used or installed, have been tested with no issues found and come complete with all hardware in their original box.

For anyone looking to upgrade a compatible Jazz Bass without paying for a factory-new set, this represents an excellent opportunity.

Best Suited For: Rock, punk, alternative, metal and contemporary bass players.

Customers Usually Upgrade From: Standard-output Jazz Bass pickups and factory-fitted passive single-coils.

Most Commonly Paired With: Fender Jazz Bass instruments, compatible Squier Jazz Basses, passive bass electronics and bass overdrive pedals.

Our Tip: The Quarter Pound set works particularly well when you want a Jazz Bass to remain clear and punchy in a dense rock mix. Try both pickups together for a full, balanced response, then favour the bridge pickup for extra attack.

Why Buy Pre-Owned From Fair Deal Music?

Buying pre-owned bass guitar pickups from Fair Deal Music offers an opportunity to upgrade your instrument at an attractive alternative to purchasing new.

We aim to provide clear information about product condition, previous use, testing and included accessories.

This Seymour Duncan Quarter Pound set is particularly appealing because it remains unused and uninstalled, has been tested with no issues found, and includes all hardware and original packaging.

Warranty, Returns & Delivery

This is a pre-owned pickup set, with its condition, testing and included accessories described above.

Applicable warranty and returns arrangements are governed by Fair Deal Music's current terms, with available UK delivery and showroom collection options provided at checkout.

Why Buy From Fair Deal Music?

When you buy from Fair Deal Music, you're choosing one of the UK's most established, independent family run music retailers since 1987.

Based in Birmingham, Fair Deal Music specialises in new, used, vintage and collectable guitars, basses, amplifiers, effects pedals and musical accessories.

Our experienced team of musicians provides knowledgeable advice and personal service, helping customers choose equipment suited to their individual requirements.

Part Exchange – Trade In. Trade Up. Save More.

Fair Deal Music buys and part-exchanges a wide range of musical equipment, including electric guitars, basses, amplifiers, effects pedals and selected accessories.

Ask our team about part-exchange options towards this Seymour Duncan Quarter Pound Jazz Bass Pickup Set.

Frequently Asked Questions

What condition is this Seymour Duncan Quarter Pound Jazz Bass Set in?

It is in Excellent Pre-Owned Condition.

Have the pickups ever been used?

No. The set has never been used or installed.

Have the pickups been tested?

Yes. Both pickups have been tested to ensure there are no issues.

Does the set come in its original box?

Yes. The original box is included.

Is all the hardware included?

Yes. All accompanying installation hardware is included.

Does this include both pickups?

Yes. The set includes both the neck and bridge pickups.

Are these suitable for a four-string Jazz Bass?

Yes. The SJB-3S is designed for compatible four-string Jazz Bass-style instruments.

Will they fit every Squier or Fender Jazz Bass?

Not necessarily. Pickup cavity dimensions can vary between models, so dimensions should be checked before purchasing.

Are the Quarter Pound pickups active or passive?

They are passive pickups.

Do they require a battery?

No.

What magnets do they use?

Alnico V rod magnets.

How large are the pole pieces?

Each pole piece is ¼ inch in diameter.

Are they high-output pickups?

Yes. They are designed to provide a powerful response with strong attack.

Are they suitable for rock and punk?

Yes. Their punchy sound makes them particularly effective for rock, punk and heavier music.

Can they be used for slap bass?

Yes. Their clear attack and full response also suit slap and fingerstyle techniques.

Do the pickups cancel hum?

When both pickups are used together at equal levels, their RWRP arrangement provides hum cancellation.

Do I need a professional to install them?

Professional installation is recommended if you are not familiar with soldering and bass guitar electronics.