Spira S-407 MBK 7-String Electric Guitar, Satin Black
Series: 400 Series
Body Shape: S-Style / Double-Cutaway
Orientation: Right-Handed
Finish: Satin Black
Overview
The Spira S-407 MBK is a modern seven-string electric guitar designed for players who demand extended range, powerful tones and fast playability. Part of Spira's 400 Series, it combines sleek double-cutaway styling with performance-focused specifications, making it an excellent choice for progressive metal, djent, hard rock and contemporary heavy music.
Featuring a roasted poplar body and a Canadian roasted maple neck, the S-407 offers a comfortable playing experience with a fast Modern D neck profile. Its Ebony Tech fingerboard, 14-inch radius and 24 jumbo frets provide a smooth playing surface for intricate riffs, technical lead work and complex chord voicings. The extended 26.5-inch scale length helps accommodate the additional low string while maintaining string tension.
Equipped with two Spira Villain custom ceramic seven-string humbuckers, the S-407 delivers powerful, articulate tones suited to high-gain playing. A fixed string-through-body bridge and black locking tuners provide dependable tuning stability, while the Satin Black finish and matching hardware complete its understated, contemporary design.
Key Features
Playability and Comfort
The S-407 features a Canadian roasted maple neck with a Modern D profile, designed to provide a comfortable grip for fast playing and extended sessions. Its 14-inch fingerboard radius offers a relatively flat playing surface, making it well suited to technical riffs, wide string bends and precise lead passages.
With 24 jumbo frets and a 26.5-inch scale length, the S-407 provides an extended playing range and additional string length to support the lower tuning commonly used on seven-string guitars. The wider 48 mm nut accommodates all seven strings, while the smooth satin neck finish helps reduce friction during position changes.
Tonewoods and Construction
The roasted poplar body provides a balanced tonal foundation, while the Canadian roasted maple neck offers a responsive playing feel. The Ebony Tech fingerboard complements the modern design with a smooth surface suited to accurate fretting and fast articulation.
The double-action truss rod allows adjustment of neck relief to help achieve a comfortable setup. Its fixed string-through-body bridge provides a practical, stable construction suited to demanding rhythm playing and regular performance.
Electronics
The S-407 is equipped with two Spira Villain custom seven-string humbuckers featuring ceramic magnets and a specified 12k output. Designed for powerful, high-output performance, these pickups deliver punchy tones and articulation suited to heavy riffs, low tunings and expressive lead playing.
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Neck Humbucker: Provides full-bodied tones for melodic lead work, sustained notes and thicker sounds.
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Bridge Humbucker: Delivers aggressive, focused tones suited to high-gain riffs and precise rhythm playing.
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Dual Humbucker Configuration: Provides a powerful tonal foundation for progressive metal, djent and hard rock.
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Three-Way Pickup Selector: Switches between the neck pickup, bridge pickup or both pickups together.
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Master Volume and Tone Controls: Allow straightforward adjustment of output level and tonal character.
Hardware and Setup
The S-407 features a fixed string-through-body hardtail bridge, providing a stable string anchor and straightforward setup. Black locking tuning machines help simplify string changes and support tuning stability during demanding playing.
The artificial bone nut accommodates the wider seven-string layout, while the black hardware complements the Satin Black finish. The fixed bridge design is particularly useful for players who prioritise reliable tuning and consistent performance in lower tunings.
Design Details
The S-407's double-cutaway body combines familiar S-style ergonomics with modern, performance-focused styling. Its Satin Black finish creates a sleek, understated appearance, complemented by black hardware, dark pickup covers and the Ebony Tech fingerboard.
The seven-string configuration provides the extended range required for modern heavy music while retaining a streamlined, stage-ready appearance.
Specifications
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Category
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Detail
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Model
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Spira S-407 MBK
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Series
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400 Series
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Body Shape
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S-Style / Double-Cutaway
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Body Material
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Roasted Poplar
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Finish
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Satin Black
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Neck Material
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Canadian Roasted Maple
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Neck Profile
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Modern D
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Neck Finish
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Satin
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Fingerboard
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Ebony Tech
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Fingerboard Radius
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14"
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Number of Frets
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24 Jumbo
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Number of Strings
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7
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Nut Material
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Artificial Bone
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Nut Width
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48 mm
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Scale Length
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26.5" (673 mm)
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Truss Rod
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Double-Action
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Pickup Configuration
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HH
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Neck Pickup
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Spira Villain Custom Seven-String Humbucker
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Bridge Pickup
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Spira Villain Custom Seven-String Humbucker
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Pickup Magnets
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Ceramic
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Pickup Output
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12k
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Controls
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1 Volume, 1 Tone
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Pickup Selector
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Three-Way Switch
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Bridge
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Fixed String-Through-Body Hardtail
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Tuners
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Black Locking
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Hardware
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Black
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Orientation
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Right-Handed
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Why Choose This Guitar?
The Spira S-407 MBK is ideal for players who want:
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A seven-string electric guitar for extended-range playing and lower tunings.
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High-output ceramic humbuckers suited to progressive metal, djent and hard rock.
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A fast Modern D roasted maple neck with a smooth satin finish.
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24 jumbo frets and a 14-inch fingerboard radius for technical playing.
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A 26.5-inch scale length, fixed bridge and locking tuners for dependable performance.