Kala Fretless U-Bass

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$449.00 Price Tier: High-end

5.0 (2)

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Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated June 2, 2026.

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Reviews

Price

4.1 (31)

$449.00

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Average Price: $449

High-end/Boutique

$100

$401+

Price Tier

In the Ukuleles category, Kala Fretless U-Bass is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

Budget

Standard

High-end

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Description

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In the world of bass instruments, the Kala Fretless U-Bass stands out as a compact powerhouse with a sound that defies its size. Crafted with exotic mahogany for the top, back, and sides, this U-Bass not only enchants the eyes with its unique, figured pattern but also delivers a deep, resonant tone that is reminiscent of an upright bass. The fretless walnut fingerboard enhances playability and offers a smooth, responsive experience for players who crave precision and fluidity in their performance.

The secret to the U-Bass's impressive sound lies in its innovative use of polyurethane strings. These strings are lightweight yet large in diameter, producing a rich, warm bass tone that can fill any room with ease. When amplified, the Shadow U-Bass NFX electronics ensure your sound remains clear and robust, whether you're practicing at home or performing on stage.

Functional beauty is built into every aspect of this instrument. A Graph Tech TUSQ nut and walnut bridge not only enhance the tone but also contribute to the U-Bass's striking appearance. The custom Hipshot Ultralite tuning machines keep your tuning stable, while the built-in tuner ensures you're always pitch-perfect, eliminating the need for additional gadgets.

Key Features:

Compact 20.375" scale acoustic-electric bass
Exotic mahogany top, back, and sides for stunning aesthetics and rich tone
Fretless walnut fingerboard for smooth playability
Unique polyurethane strings that deliver warm, resonant bass tones
Graph Tech TUSQ nut and walnut bridge for enhanced tone
Custom Hipshot Ultralite tuning machines for stable tuning
Shadow U-Bass NFX electronics for superior amplified sound
Built-in tuner for convenience

Videos

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jacomacca

KALA FRETLESS U-BASS UNPLUGGED

jacomacca

Reviews

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PROS

Offers a unique upright bass sound in a compact size
Excellent sound quality both plugged and unplugged
High-quality craftsmanship with gorgeous design
Easy to transport, ideal for gigs
Built-in Shadow electronics and tuner are reliable
Strings settle into tune after initial stretch
Great tone and build quality

CONS

Requires time and ear training for proper intonation
Low E string can be too quiet for some recordings
Quality control issues, such as missing magnetic strips
Ebony veneer, not solid ebony
Not ideal for beginners unfamiliar with fretless instruments

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Kala Fretless U-Bass.

Setup and maintenance

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Talcum powder helps reduce string stickiness for smoother slides on the fretless Kala U-Bass.
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The rubber strings on the Kala U-Bass may require trimming and reinstallation as they continue to stretch over time.
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Use cases and applications

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A portable battery-powered amp, like the Blackstar, is recommended for outdoor play with a U-Bass due to its low acoustic volume.
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Owners find the Kala U-Bass ideal for acoustic gigs but note it doesn't replicate the sound of a traditional electric bass, making it unique for genres like Americana and swing.
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User experience

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Owners note difficulty in achieving precise intonation on the G string above the 9th fret with the fretless U-Bass.
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Some users prefer playing the U-Bass with a pick for better articulation, despite the initial inclination to use fingers due to the rubber strings.
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Users experience a distinctive, warm tone that sits between an upright and electric bass, particularly suitable for round, warm bass tones in specific musical contexts.
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The U-Bass is enjoyed for casual, portable use during activities like camping and road trips, adding value as a travel-friendly instrument.
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Build quality

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The shorter scale of the U-Bass can result in dicey intonation higher up the fretboard, particularly on fretless models.
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Owners note that fretted Kala U-Basses can exhibit mild buzzing, while fretless models avoid this issue.
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Features and functionality

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Fret lines on the fretless U-Bass assist with initial accuracy until players develop better ear-based intonation skills.
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The U-Bass strings are often described as resembling "rubber" and do not bend easily, requiring players to slide or adapt their playing technique.
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Mods and upgrades

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Switching from rubber to metal roundwound strings may require a different nut on the U-Bass, but results in playability similar to an electric bass.
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Comparisons

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Compared to cheaper models like the Rondo (Hadean), the Kala U-Bass offers more accurate intonation, making it suitable for performance settings.
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A comparison to Michael Kelly Sojourn Travel bass reveals that some players prefer the slightly larger size and playability of the Michael Kelly, though the U-Bass is appreciated for its form factor.
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Artist usage

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Juan Alderete

Bassist

Marilyn Manson

Verified via Premierguitar

I use the shit out of those on hip-hop. You pull that out on dudes bumping 808s [Roland drum machines] and they go, “What the fuck is that little dude?” They love it. I’ve used it on Jonwayne stuff—this rapper I work with out of the Low End Theory crew. I used it with Domo Genesis. He’s one of the guys from Odd Future, but he’s solo now and I used that on his record