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Tune Guitar Technology TWX-4 Trem

Tune Guitar Technology TWX-4 Trem

$1,169.00 Price Tier: High-end

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This product is Vintage or Discontinued

Find out who is using TUNE TWX-4

1 community setup

0 wishlisted

1 saved

Page last updated Apr 13, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated April 13, 2026.

Store

Reviews

Price

Bass Shop GIB

$1,169.00

Average Price: $1,169

High-end/Boutique

$400

$1001+

Price Tier

In the Electric Basses category, Tune Guitar Technology TWX-4 Trem 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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The TWX-4 Trem Vintage Bass made in Japan by TUNE

The TUNE TWX-4 TREM is a rare, high-end Japanese electric bass from the early 1990s, designed as a premium model with advanced features uncommon for bass guitars. Its standout element is the proprietary C.A.T. (Convertible Action Tremolo) system, which allows players to use a whammy bar, something rarely seen on bass instruments. Built with a neck-through construction and high-quality tonewoods, it delivers strong sustain, stability, and a rich tonal character. The instrument also includes active electronics and humbucking pickups, offering a wide range of tonal shaping options. Locking tuners and a floating bridge system enhance tuning stability despite the tremolo mechanism. Overall, it is considered a boutique, collectible instrument known for both innovation and craftsmanship.

Specs

• Model: TUNE TWX-4 / TWXT-4 Tremolo Custom
• Origin: Made in Japan (early–mid 1990s)
• Construction: Neck-through design (multi-piece maple & walnut)
• Body Material: Walnut (varies by version)
• Fingerboard: Ebony
• Number of Strings: 4-string bass
• Scale Length: 34"
• Pickups: Tune SWS humbuckers (HH configuration)
• Electronics: Active 18V preamp with EQ controls
• Tremolo System: C.A.T. floating tremolo with whammy bar
• Tuners: Locking tuners (Sperzel)
• Frets: 24

Videos

Max Bass

Tune TWX-41

Video thumbnail for Tune TWX-41 by Max Bass

Tune TWX-41

Max Bass

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Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Alternative Rock

Japanese Jazz Fusion

Community setups

bassist

Gear IQ 184

3

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