Sire Marcus Miller Mahogany 4-String Active Bass Blue Swirl, M6H 4/BLSW

The Sire M6H 4-String Active Bass in Blue Swirl is part of Sire’s latest evolution in modern bass design. Built for players who demand tonal flexibility, stability, and contemporary aesthetics, the M6H delivers professional-grade performance in a compact headless format.

With its striking Blue Swirl finish, sandblasted mahogany body construction, and powerful Marcus Heritage electronics, this bass is engineered for clarity, punch, and extended tonal control across multiple playing styles.

A gigbag is included.

Body

• Body Material: Mahogany with Swamp Ash (sandblasted finish)

• Body Shape: Sire M Headless Shape

• Body Finish: Blue Swirl

The mahogany core provides warmth and depth, while the swamp ash top enhances articulation and attack.

Neck

• Neck Material: 5-piece Hard Maple / Mahogany

• Neck Shape: C-Shape

• Scale Length: 33"–34.5" multi-scale

• Fingerboard: Rosewood Edgeless™ (Rolled Edges)

• Fingerboard Radius: 16"

• Frets: 24 Medium Jumbo (2.4 mm) Stainless Steel

• Nut: Graphtech Tusq XL

• Nut Width: 41.9 mm

• Inlays: White Pearloid / Abalone Rounded-Rectangular Block

• Neck Joint: Five Bolt Bushing System

The multi-scale configuration improves string tension balance and low-end clarity, while stainless steel frets ensure durability and smooth playability.

Electronics

• Pickups: Marcus Pure-H Revolution Set

• Preamp: Marcus Heritage-3 with Middle Frequency Control

• Controls:

  • Volume / Tone

  • Blender

  • Treble

  • Middle / Frequency

  • Bass

  • Pickup Variation Switch

• Knobs: Black Aluminum

This system delivers expansive tonal shaping—from tight modern punch to warm vintage character—making it highly adaptable in studio and live settings.

Hardware

• Bridge: Sire Headless Individual Bass Bridge

• Tuning Gear: Headless system (bridge-integrated tuning)

• Hardware Finish: Black

• Pickguard: None

The headless configuration enhances tuning stability, sustain, and balance while reducing overall weight and improving ergonomics.

Included

• Gigbag