Sire Marcus Miller M6 Headless 4 Mahogany Satin
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Manufacturer Information
Sire Marcus Miller
https://www.sire-usa.com
sireguitars@sire-revolution.com
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IMS Distribution
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A Decidedly Modern Approach in the Sire M Range
With the M6 Headless, Sire emphasizes ergonomics and efficiency: compact size, center of gravity close to the body, and an immediate feeling of stability, especially appreciated during long performances. The "Mahogany Satin" finish opts for sobriety while highlighting the warm character of mahogany and the precision of a platform designed to handle modern dynamics (heavy playing, slap, pick attacks).
For Which Bassists and Styles?
Thanks to its 24 frets, 5-piece neck, and playability tailored for performance, the M6 Headless 4 is mainly aimed at intermediate to advanced bassists seeking a modern, reliable, and versatile bass. It excels in pop and rock (foundation and clarity), proves formidable in funk (quick response, controllable snap), and maintains firm lows in more demanding contexts like metal, with a definition that remains clean in the mix.
The Sound
The mahogany body delivers deep lows and dense mids, with a roundness that fills the space without muddying the attacks. The rosewood fingerboard contributes to a slightly softer response in the upper spectrum while supporting a more singing sustain. The "Marcus Pure-H Revolution" pickup set paired with the Marcus Heritage-3 preamp offers a very wide palette: in passive mode, you get a more natural and mellow tone, while the active mode emphasizes precision, headroom, and 3-band EQ. The highlight remains the mid-frequency control: ideal for scooping, boosting presence, or repositioning the bass in your signal chain (amp, pedals, IR), depending on your touch and tuning.
Recommended Compatible Accessories
To maximize comfort, a wide strap (leather or neoprene) perfectly complements the balance of the headless format. A reliable instrument cable and a stable stand are also simple and safe additions to protect the instrument during rehearsals, on stage, and in the studio.
Technical specifications
| Left handed | No | Nbr of strings | 4 |
| Strings | Steel | Color | Brown |
| Body | mahogany | Inlays | rounded rectangular white perloid/abalone blocks |
| Shape | Sire M-Headless | Hardware | black |
| Finish | "Mahogany Satin" | Bridge | Sire Headless Individual Bass Bridge (one saddle per string, tuning at the bridge) |
| Pickguard | none | Tuners | none (headless system) |
| Neck | 5-piece maple/mahogany, C profile | Knobs | black aluminum |
| Joint | 5 screws | Pickups | "Marcus Pure-H Revolution" set |
| Fingerboard | rosewood | Preamp | Marcus Heritage-3 (3-band) with mid-frequency control |
| Radius | 16" / 406 mm | Controls | volume/toner, balance (blend), bass, mids + frequency, treble |
| Frets | 24, medium jumbo stainless steel (approx. 2.4 mm / 0.094") | Switches | pickup variation, active/passive |
| Scale length | 33" to 34.5" / 838 to 876 mm (variable scale) | Approximate weight | under 4 kg (4-string version) |
| Nut | Graph Tech Tusq XL, 41.9 mm / 1.65" | String gauge | 45-105 |
Questions frequently asked
Does the Sire Marcus Miller M6 Headless 4 have a multiscale fretboard?
The variable scale length ranges from 33 to 34.5 inches, or 838 to 876 mm. This setup is paired with an individual saddle per string, with tuning done at the bridge.
What kind of tone does the Marcus Heritage-3 electronics offer?
The Marcus Heritage-3 preamp features a 3-band active EQ with adjustable mid frequencies. The Marcus Pure-H Revolution pickup set is complemented by controls for volume/tone, balance, bass, mids, and treble.
Can it operate in passive mode?
An active/passive switch allows using a more natural and mellow passive mode, or activating the preamp to benefit from the 3-band EQ.
Is the headless bass comfortable for long playing sessions?
With an indicative weight under 4 kg and a headless design, this model brings the center of gravity closer to the body. The five-piece maple/mahogany neck has a C profile, while the rosewood fingerboard features a 16-inch (406 mm) radius. The 24 medium jumbo stainless steel frets provide access to an extended range.
Is a gig bag included with this Sire bass?
The delivery includes an official Sire gig bag. A wide leather or neoprene strap, an instrument cable, and a sturdy stand are among the recommended accessories.



