Sire M7+ A4F/BRS Marcus Miller Fretless Bass Guitar Brown Burst

The Sire M7+ A4F/BRS is a modern fretless 4-string bass guitar from the M7 2nd Gen Series, developed in collaboration with Marcus Miller. This Brown Burst version combines a North American alder body with swamp ash and a solid flame maple top for deep, powerful tone with a refined appearance. The modern body shape sits comfortably against the body, while the Edgeless™ ebony fingerboard provides an exceptionally smooth playing experience—ideal for expressive and fluid playing.

Equipped with Marcus Pure-H Revolution humbuckers and the versatile Heritage-3 preamp, this bass delivers a wide range of modern tones. Thanks to the active/passive switch, mid-range control, and multiple pickup modes (series, split, parallel), you can fine-tune every detail of your sound. The high-quality finish, black hardware, and robust bridge make this model an absolute top choice for professional bassists with a modern playing style.

Specifications:

• Body material: North American alder / swamp ash with solid flamed maple top
• Body shape: Modern bass style
• Color: Brown Burst (BRS)
• Neck material: Hard maple
• Neck shape: C-shape
• Scale: 34”
• Fingerboard: Ebony with Edgeless™ beveled edges
• Key radius: 12”
• Frets: 24 medium (fretless design)
• Nut: Natural bone, 38 mm wide
• Inlays: White mother-of-pearl dots
• Neck joint: Four bolts with individual bushings
• Pickups: Marcus Pure-H Revolution humbucker set
• Preamp: Marcus Miller Heritage-3 with mid-frequency control
• Regulations:
• Volume / tone (dual pot)
• Pickup blender
• Treble
• Mid/mid frequency (dual pot)
• Bass
• Mini toggle (active/passive)
• 2 mini toggles for pickup settings: series / split / parallel
• Knobs: Modern black aluminum knobs
• Bridge: Marcus Miller Heavy Mass Custom
• Tuning Machines: Sire die-casting gear
• Hardware finish: Black
• Pickguard: None