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Warwick Thumb Pro BO 5-string Fretless

Warwick Thumb Pro BO 5-string Fretless

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$4,020.00 to $4,100.00

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Page last updated Jul 06, 2026

Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated June 30, 2026.

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5.0 (2)

$4,100.00

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$4,100.00

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4.0 (1)

$4,020.00 1 available New

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Price History

Based on price data from 1 merchant for "Warwick Thumb Pro BO 5-string Fretless". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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The Warwick Thumb Pro BO 5-string Fretless is an embodiment of precision and craftsmanship, designed for the discerning bassist who demands both versatility and tonal depth. This fretless marvel features a Bubinga body that not only adds stunning visual appeal but also delivers a warm, rich resonance that players have come to expect from Warwick. The five-string configuration expands your range, letting you explore deeper tonal landscapes without sacrificing playability.

A standout feature of this bass is its Ovangkol neck, which is complemented by a Wenge fingerboard. This combination ensures a smooth, fast playing experience that is ideal for both dynamic solos and steady rhythm sections. The fretless design provides a seamless transition across notes, allowing for expressive slides and nuanced tonal variations that are perfect for jazz, fusion, or any genre that values fluidity and emotion.

Warwick’s MEC active pickups and active 2-way electronics provide a broad spectrum of tonal possibilities. From deep, growling lows to clear, singing highs, you can easily shape your sound to fit any musical context. The Thumb Pro BO is not just a bass guitar; it's a tool for musical storytelling.

Key Features:

Bubinga body for rich and warm tone
Ovangkol neck with Wenge fingerboard for smooth playability
Fretless design for seamless transitions and expressive slides
5-string configuration for extended range
MEC active pickups with active 2-way electronics for versatile tonal shaping

Product specs

Brand	Warwick
Model	German Pro Series GPS Thumb Bolt-On 5-String
Finish	Burgundy Red
Year	2010s
Categories	5- and 6-String Basses
Active / Passive Pickups	Active Pickups
Active Preamp	Active Preamp
Body Shape	Double Cutaway
Color Family	Red
Fretboard Material	Rosewood
Number of Frets	24
Number of Strings	5-String
Pickup Configuration	SS
Right / Left Handed	Right Handed

FAQs

What type of wood is used for the body of the Warwick Thumb Pro BO 5-string Fretless bass?: The Warwick Thumb Pro BO 5-string Fretless bass features a body made from Ovangkol wood, which contributes to its warm, rich tone and excellent sustain.
How does the fretless design of the Warwick Thumb Pro BO 5-string affect playability?: The fretless design allows for smooth glissandos and greater expression in playing, making it ideal for jazz and fusion styles where nuanced pitch control is desired.
What is the pickup configuration on the Warwick Thumb Pro BO 5-string Fretless bass?: This bass features an SS (single-single) pickup configuration with active pickups, providing a wide range of tonal possibilities and clarity.
Is the Warwick Thumb Pro BO 5-string Fretless bass suitable for beginners?: While it's a high-quality instrument, the fretless design may present a steeper learning curve, making it more suitable for intermediate to advanced players familiar with fretless bass techniques.
Can the active preamp of the Warwick Thumb Pro BO 5-string Fretless be bypassed?: Yes, the active preamp can be bypassed to allow for passive operation, offering flexibility in tonal control and battery-free operation.

Videos

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SKIFMUSIC LIVE

Бас-гитара Warwick Pro Series Thumb BO 5 Natural Satin | SKIFMUSIC.RU

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Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Warwick Thumb Pro BO 5-string Fretless.

Features and functionality

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Owners note the Thumb's ergonomic quirks, reporting the bridge sits more centrally, requiring a high strap position, akin to Ryan Martinie's playing posture.
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The Warwick growl is achieved through pedal tweaking and EQing, allowing for versatility beyond its characteristic mid-heavy tone.
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Comparisons

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The '90s Warwick Thumb is favored for its wenge neck, which is thinner and more consistently curved compared to the later ovangkol necks.
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The Thumb is described as the "anti-Dingwall" due to its unique tonal placement in the mix, emphasizing low mids over the Dingwall's more balanced sound.
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Mods and upgrades

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Users suggest replacing factory tuners on '90s models with lightweight Gotoh tuners, noting the unique label "West Germany" on originals.
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Brass nut upgrades are debated; some feel it doesn't enhance performance significantly, suggesting it may not be worth the investment.
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Use cases and applications

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The Thumb's unique tone is described as nasally and growly, similar to a MusicMan, but may not suit all band settings.
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The Thumb's sound, characterized by low mids, is distinct and does not blend easily in typical band settings, making it suitable for specific musical contexts.
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User experience

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One owner reports the Thumb 5 is brighter than the Corvette $$ and requires rolling off the treble for a warmer sound.
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The Thumb's neck dive is exacerbated by its short upper horn, leading to discomfort and requiring alternative strap solutions.
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Owners report that despite the Thumb's weight and neck dive, it provides an unparalleled tone when played with hard finger picking above the neck pickup.
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The clarity of the B string is highlighted, delivering exceptional tonal performance that impresses players used to less distinctive low-end responses.
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Setup and maintenance

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One owner experienced neck warping twice, emphasizing the importance of inspecting the instrument before purchase.
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Owners in regions with variable climates report the Thumb's neck as highly stable, rarely needing truss rod adjustments even after 15 years.
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Build quality

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The Just-A-Nut III is recommended to replace the II, which is prone to breaking and can be sharp enough to cause injury during fast slides.
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Artist usage

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P-Nut

Bassist, Music Producer

311

Verified via Photo

P-Nut uses the Warwick Thumb BO Fretless on slower songs like "Amber" and "Stainless." He is seen playing this bass in their Tiny Desk concert during the performance of "Amber." The proof can be seen in the provided image.