Introducing the MV-4JB Plus BassTheWorld Signature

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