The Masterbuilt Series represents the next step in Belforti’s range of instruments — designed for musicians who seek a higher level of refinement, performance, and precision. Each M-Series bass is crafted with premium materials and advanced techniques, offering a superior playing experience without excess or compromise.
Built with select tonewoods, bespoke hardware, and high-performance components, the Masterbuilt Series focuses on delivering exceptional feel and tonal responsiveness. Every detail, from the carefully sculpted neck profile to the precision fretwork, is designed to enhance playability and provide a natural connection between player and instrument.
The Masterbuilt Series stands for sophistication, versatility, and elevated craftsmanship. These instruments are built to meet the demands of serious musicians, offering greater control, dynamic range, and reliability. While maintaining the clean, purposeful design philosophy that defines Belforti Instruments, the Masterbuilt Series adds an extra layer of refinement for players looking for an instrument that rises to every occasion.
About the Marē 3 Eucalyptus
The Marē Flamed Eucalyptus stands out with its striking one-piece eucalyptus top, offering a unique visual identity paired with outstanding tonal qualities. Its roasted tonewood construction ensures enhanced resonance, stability, and long-term durability.
Designed for clarity, punch, and effortless playability, the Marē Flamed Eucalyptus delivers a balanced and dynamic sound, making it an ideal choice for players seeking both character and performance in a modern, handcrafted bass.
Proudly built in France, the Marē reflects Belforti Instruments' dedication to premium craftsmanship and contemporary design.
Quick Specs
Number of strings : 4
Scale Length : Short Multiscale - 30.5" to 30"”
Number of frets : 22 - Medium/Medium EVO Gold
Neck Profile : L
Radius : Modern (12”-16”)
Top : Italian Olive
Body : Roasted Swamp Ash
Neck : Norwegian Roasted Flamed Maple
Fretboard : Norwegian Roasted Flamed Maple
Inlay : Premium Rounded Blocks
Core Features
These are the core features common to all Belforti Guitars and Basses :
Made in France
PLEK Treatment
Rated Tonewoods
Invisible Fret Tangs
Radiused Fret Slots
Angled Full Length Carbon Reinforcements
Easy Truss Rod Access
Selected Bone Nuts
Handwound Pickups
Matching Pickup Shells
Optima 24KGold Strings
Belforti x ABM Single Saddle Bridge
Thin Frets
UltraThin Polyurethane
Warranty
Every Belforti instrument comes with a comprehensive warranty covering manufacturing defects and workmanship for a lifetime. This warranty ensures quality and craftsmanship. Exclusions apply. For any issues, contact our support team for prompt resolution. Enjoy peace of mind knowing your instrument is backed by our commitment to excellence.
Delivery
Production Time
Between 6 and 8 months*If the instrument is in stock, shipping occurs within days.
Delivery
Orders are shipped from France, ensuring no extra fees within the European Union. For customers outside the EU—such as those in Norway, Switzerland, or Iceland—local import fees and duties will be applied based on your country's regulations.Guitars and large items benefit from fast, free* delivery via DHL Express with On Demand Delivery, allowing you to track and manage your shipment throughout its journey.
Out of stock
Marē 4 - Masterbuilt
About this
Each of our instruments is carefully handcrafted in Paris, France, using the highest standards of craftsmanship and the finest materials. At Belforti Instruments, we focus on precision and quality to create durable, high-performance guitars and basses that meet the needs of serious musicians. Every instrument is a testament to our commitment to exceptional sound and design
Features
Features
Overview
The M-Series is the mid range Series of Belforti's line up. These instruments represent the entry in the world of fine lutherie, with decorative tops, high performance woods and electronics, in a form factor that represents modern lutherie. They are a continuity of the E-Series design, and bridge the gap between E & S-Series.
As a part of this Series, this instrument features the following :
Master Grade Tonewoods
The Master-grade woods that are known for their stunning visual appeal as well as their tonal excellence. These aren't just any pieces of timber; they are carefully selected for their aesthetic beauty, tonal richness, and resonance.
All the Master Grade woods are rated between 81 and 90 on the Belforti rating.
Faux Pickguard Aesthetics
The faux pickguard gives the M-Series their distinctive look. It maintains this classic look and brings coherence to the design, while preserving the grain pattern. It is made out of inlayed ebony.
We could never put a piece of plastic on these, not even transparent acrylic !
Matching Premium Inlays
M-Series fretboard and headstock inlays are exclusively made out of the top wood you chose. They are extracted from the scraps of your top, and they are outline with a black inlayed ebony outline.
Shape
Shape
Core Specs
Core Specs
Number of strings : 4
The traditional bass configuration. Lightweight, balanced, and essential for most musical styles. Offers simplicity, clarity, and a classic feel with optimal string spacing and comfort.
Scale Length : Short Multiscale - 30.5" to 30"”
Number of frets : 22 - Medium/Medium EVO Gold
Extended-range configuration offering two full octaves per string. Ideal for soloing, technical playing, and modern styles requiring upper-register access.
Neck Profile : L
Chunkier neck profile for players seeking substantial grip and a vintage-inspired feel. Provides stability and a solid hand-filling shape.
Radius : Modern (12”-16”)
Flatter fretboard radius for fast playing, low action, and effortless bending. Ideal for technical and contemporary playing styles.
Woods
Woods
Body :
Roasted Swamp Ash combines the lightweight and vibrant resonance of traditional swamp ash with increased stability and reduced moisture content from the roasting process. It offers enhanced structural integrity, excellent vibration response, and beautiful caramelized hues, making it both functional and visually striking.
Neck :
Roasted Maple undergoes a heat-treatment process that reduces moisture content, increasing dimensional stability and resistance to environmental changes. It’s lighter than regular maple, with improved stiffness and a rich caramel color. Its reduced internal stress makes it highly resistant to warping, ideal for touring instruments or varying climates.
Fretboard :
Roasted Flamed Maple combines the dramatic visual appeal of flame figuring with the structural benefits of thermal treatment. It offers excellent dimensional stability, lower moisture absorption, and a silky smooth playing surface. The roasted process enhances the contrast of the figuring for an even more luxurious appearance.
Options
Options
This is a list of the non standard options featured on this instrument
Top
Lovely Curves
Masterbuilt Series tops are bent on the armrest which keeps intact the beautiful grain as well as creating an ergonomic and delicate curve to rest on.
Electronics
Masterbuilt instruments feature advanced electronic designs and premium pickups from some of the finest manufacturers in the world. Their circuitry is conceived for power, precision, and tonal versatility — not limited to any particular style, but capable of handling them all.
Depending on the model, you’ll find active systems on basses, expanded tonal controls, and refined wiring layouts that provide exceptional clarity, responsiveness, and creative range.
Pickups
Preamp
What's included
Your instrument
How surprising !
Belforti Premium Gig Bag
Your Belforti deserves proper protection. So it comes with a signature padded gig bag themed after the series you chose.
Sturdy, weather-proof, and oh so cool !
Setup Tools
Your instrument comes completely setup and ready to play. But you might wanna tweak things up a bit later on, so we got you covered !
Certificate of Authenticity
A real Belforti deserves a certificate. Can't fake this up
Detailed Specs
GENERAL SPECS
Body Shape :
Number of Strings :
Scale Length :
String Spacing :
Weight :
TOP, BODY, NECK & FRETBOARD
TOP
Top :
Contrast Layer :
BODY
Body Wood :
Body Wood Rating :
Chambering :
NECK
Neck Wood :
Neck Wood Rating :
Neck Profile :
Nut Width :
FRETBOARD
Fretboard Wood :
Fretboard Wood Rating :
Fretboard Radius :
Number of Frets :
Fret Wire :
FINISH
Body Finish :
Neck Finish :
INLAYS & AESTHETICS
Inlay Design :
Inlay Material :
Knobs :
Backplate :
Headstock :
HARDWARE
Bridge :
Tuners :
Hardware Color :
Side Dots :
Strings :
ELECTRONICS
Configuration :
Pickups :
Layout :
Preamp :
Jack :
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