Pricing and availability
We compare 600+ stores and found this item at 4 stores. Prices updated .
Store
Reviews
Price
Average Price: $3,080
High-end/Boutique
$400
$1001+
Price Tier
Budget
Standard
High-end
Price History
Based on price data from 3 merchants for "Warwick Thumb Bolt-On 4". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.
Description
The Warwick Thumb Bolt-On 4 is a powerhouse of innovation and tradition, designed to inspire both seasoned bassists and those just beginning their musical journey. Its sleek ovangkol body and fast “C”-profile neck ensure unmatched playability and comfort, making it an ideal choice for any playing style, whether you're a fingerstyle aficionado or a slap-and-pop enthusiast. The wenge fretboard is finished with precision fretwork, ensuring a smooth playing surface that's primed for fast note selection, while the fluorescent side dots keep you on track under stage lights.
This electric bass stands out with its active MEC J-style pickups and a bypassable 2-band EQ/preamp, providing a versatile tonal palette that can be sculpted to fit any genre. Whether you're in the studio or on stage, the sound is powerful and articulate, delivering the punch and clarity needed to cut through any mix. Warwick’s commitment to quality craftsmanship is evident in every detail, from the Just-A-Nut III Tedur nut to the ergonomically angled tuner keys, all meticulously handcrafted in Germany.
This instrument not only respects the environment with its CO2-neutral production but also respects your playing style by offering a design that supports a wide array of techniques. With the inclusion of a Starline RockBag and Warwick Pro Series User Kit, the Thumb Bolt-On 4 is ready to accompany you on your musical adventures.
Key Features:
- Solid ovangkol body and bolt-on neck
- Wenge fingerboard with precision fretwork
- Active MEC J-style pickups with bypassable 2-band EQ
- Volume (push-pull for preamp bypass), Balance, and Bass/Treble controls
- Just-A-Nut III Tedur nut
- Fluorescent side dots for visibility
- Warwick Security Locks and tuners
- Handcrafted in Germany with CO2-neutral production
- Includes Starline RockBag and Warwick Pro Series User Kit
Product specs
| Number of Strings | 4 |
| Left-/Right-handed | Right-handed |
| Body Shape | Thumb |
| Body Material | Ovangkol |
| Body Finish | Satin |
| Neck Material | Ovangkol |
| Neck Shape | C |
| Neck Joint | Bolt-on |
| Radius | 20" |
| Number of Frets | 24, Jumbo, Brass |
| Scale Length | 34" |
| Nut Width | 1.5" |
| Nut Material | Tedur Just-A-Nut III |
| Bridge/Tailpiece | Warwick 3D 2-piece Bridge |
| Tuners | Warwick |
| Neck Pickup | MEC Active J Stacked-coil Humbucker |
| Bridge Pickup | MEC Active J Stacked-coil |
| Controls | 1 x volume, 1 x balance, stacked 2-band EQ |
| Strings | Warwick Black Label, .045-.105 |
| Case/Gig Bag | Gig Bag |
FAQs
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What is the neck profile like on the Warwick Thumb Bolt-On 4?
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The Warwick Thumb Bolt-On 4 features a C-shaped neck profile, providing a comfortable and fast playing experience suitable for various playing styles.
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What kind of tones can I expect from the pickups on the Warwick Thumb Bolt-On 4?
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The Warwick Thumb Bolt-On 4 is equipped with MEC Active J Stacked-coil Humbuckers, delivering a clear and punchy tone with excellent definition, ideal for genres ranging from rock to funk.
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Is the Warwick Thumb Bolt-On 4 suitable for advanced players?
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Yes, the Warwick Thumb Bolt-On 4 is well-suited for advanced players due to its high-quality construction, versatile tone options, and ergonomic design, making it a favorite among professional bassists.
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What materials are used in the construction of the Warwick Thumb Bolt-On 4?
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The Warwick Thumb Bolt-On 4 is crafted from ovangkol for both the body and neck, providing a warm, resonant sound with a satin finish that enhances playability.
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How does the bolt-on neck affect the sound of the Warwick Thumb Bolt-On 4?
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The bolt-on neck design contributes to a snappier attack and brighter tone, offering a distinct sound that complements the bass's overall tonal versatility.
Videos
MusicStoreLive.com
Warwick German Made Pro Series Thumb Bolt On Bass Demo 4 & 5 String
Warwick German Made Pro Series Thumb Bolt On Bass Demo 4 & 5 String
MusicStoreLive.com
Warwick Pro Series Thumb BO 4- & 5-String Bass Demo | Elevate Your Sound with Kade Turner!
Framus & Warwick
Sound Sample【Warwick / Pro Series Thumb Bass Bolt-On 4st】
GRACIAS.nagoya
Djavan - Passaro bass cover
Raphael Ferreira
Reviews
PROS
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Durable bolt-on neck design allows for easier replacement if damaged
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Silky smooth neck enhances playability
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Rich, mimicking upright bass tones
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Versatile electronics for precise tone control
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Distinctive Warwick growl helps bass stand out in a mix
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Excellent craftsmanship and quality finish
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Adapts well to diverse music styles like pop, metal, and rock
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Comfortable and versatile to play
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High-quality construction and sound
CONS
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Possible neck imbalance when using a strap
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Longer neck with 2 octaves may not suit everyone
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Warwick Thumb Bolt-On 4.
Comparisons
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The Thumb BO body shape divides opinions, with some preferring the aesthetics of the Warwick Corvette, which is also noted for better ergonomic design.
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The Thumb's small body size is likened to a Clarke Alembic, with some preferring the balance of the Streamer.
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Some users prefer the Warwick Corvette for its similar tonal qualities but better ergonomics and aesthetics, including the German-made bubinga model.
Source
Build quality
Features and functionality
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Some models feature a thin neck profile, offering a different feel compared to the thicker late '90s models.
Source
User experience
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When seated, players often need to apply arm weight to balance the neck, causing discomfort over time.
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The Warwick Thumb Bolt-On 4 is known for significant neck dive, which multiple owners report as uncomfortable over extended playing sessions.
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The neck is described as thick and chunky, which, while not universally problematic, can contribute to fatigue, especially for users with smaller hands.
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The bass's unique "Warwick growl" and woody tone are prized for solo performance but can be overwhelming within a full band mix.
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The bass is described as weighing around 10 pounds, which some users find burdensome during long rehearsals, even with comfort straps.
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Owners describe the tone as "mid-heavy" and "burpy," which can be challenging to blend in a band context, particularly noted during classic rock performances.
Source
Setup and maintenance
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Owners achieve low action around 1 to 1.5 mm at the 12th fret without buzz, emphasizing precise craftsmanship.
Source
Value and pricing
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A 2001 model in excellent condition is typically priced around $2,000, though some sellers list them higher, potentially due to unique features or limited production runs.
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Warwick prices have increased significantly since the mid-2010s, with German-made models, especially pre-2000, commanding higher prices due to their rarity and build quality.
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A 2001 Warwick Thumb BO with a bubinga pommele top, figured ovangkol back, and maple accent line is valued around $2,000; special runs may increase this price.
Source
Use cases and applications
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The Warwick Thumb Bolt-On's unique wood design and construction are appreciated for their aesthetic appeal, making them stand out in a collection or on stage.
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The Warwick Thumb's distinctive sound is often compared to a "honk" in the mix, making it less versatile for varied musical genres.
Source
Critic Reviews
4.0 out of 5
Based on 2 Reviews and 5 Ratings
Artist usage
Add artist
"When he picks up a bass onstage, he favors his white Warwick Thumb "Eye Bass" (so named because of the eye painted on the front), a white fretless Warwick Thumb, or his custom Lakland with a fist-shaped headstock. "
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In this image from the Subliminal Verses era, Paul Gray is seen playing a Warwick Thumb Bolt-On 4 bass.
Throughout this interview with Warwick basses, Scott is seen demoing a Warwick Thumb
Baixo usado de 1994-1995 Banda Angra na Rede Mulher, 1994 Baixo pode ser visto nos minutos 2:19
In the music video of "Understanding In a Car Crash" at the 1:59 mark, Tim can be seen playing a Warwick bass.
Tim also confirmed using Warwick basses in the past, before switching to Fender Precision basses in a recent Instagram video: https://www.instagram.com/lsdunes/reel/Cl1_aLuqa4Z/
This image of an old Thursday live performance shows the back of the bass. https://64.media.tumblr.com/1b69fec31372e7c861ccbc0b32700a71/67296272f747b8fb-1a/s1280x1920/456037ec5e8d4c5850cf325b751aba05cde99ae9.jpg Based on the bolt-on construction and the time of usage, Tim most likely used a 90's Warwick Thumb BO.
Kyle Sanders can be seen playing a Warwick Thumb BO in the first and third pictures of this article.
Album Usage
The Warwick Thumb Bolt-On 4 has been featured on the following albums:
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Warwick Thumb Bolt-On 4, it is most commonly used with the following gear.
Community setups
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