Introducing the MV-4JB Plus BassTheWorld Signature

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Developed with Gregor Fris, the MV-4JB Plus BassTheWorld Signature combines vintage-inspired tone with modern playability and carefully selected premium components.

We’re extremely proud to unveil the new MV-4JB Plus BassTheWorld Signature – a premium instrument developed in close collaboration with Gregor Fris of the BassTheWorld YouTube channel. First teased at Guitar Summit 2025, this signature model is designed to meet the demands of modern bass players, keeping a vintage-inspired tone with contemporary playability and premium components.

The MV-4JB Plus is equipped with hand-wound Kloppmann pickups for a clear, articulate tone, Gotoh hardware for rock-solid stability and sustain, and high-quality CTS pots for precise and reliable control.

Shaped by the practical insights gained from years of reviewing and testing bass gear on BassTheWorld, this instrument reflects a deep understanding of what players truly need in real-world situations.

Specifications

Body: American alder
Bolt-on neck: Caramelised Canadian hard rock maple with roseacer skunk stripe
Fingerboard: Rosewood
Pearloid block fingerboard inlays
Fluorescent side markers
Neck profile: modern soft D – Thickness at 1st fret: 21 mm, at 12th fret: 23 mm
Matching headstock
Double action truss rod with adjustment wheel
Cream-coloured neck binding
Fingerboard radius: 305 mm (12″)
Scale: 864 mm (34″)
Nut width: 38 mm (1.49″)
White graphite nut
20 premium medium 2.9 mm nickel silver frets
Pickups: 2 hand-wound Kloppmann JB-61 Alnico 5 single coils (middle and bridge)
2 Volume and 1 tone contols (CTS pots)
3-ply parchment pickguard
Gotoh 203B-4 brass bridge
String spacing: 19 mm
Gotoh GB11W-4 machine heads with 20:1 gear ratio
Chrome hardware
Strings: Daddario EXL165 .045 – .105
Colour: Burgundy Mist