Detail 01
Seven strings with octave G
The additional octave G string changes the instrument’s string configuration from a standard six-string layout.
Product detailSKU #1500000440373
MartinM-7 Johnny Marr Signature Limited-Edition 7-String Grand Auditorium Acoustic-Electric Guitar Natural
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Independent shopping perspective
The Korena take
The M-7 is Johnny Marr’s limited-edition seven-string Grand Auditorium acoustic-electric, distinguished by an added octave G string. Its solid spruce top and solid East Indian rosewood body are described with deep bass, rich overtones, and clear separation between treble and bass. A full-thickness genuine mahogany neck, standard taper, and 1-11/16-inch nut width shape the playing layout. LR Baggs Anthem electronics provide volume, mix, mic level, and phase controls for amplified performance or recording.
Strong match
Who this is for
- Arrangements that use an octave G string to add layered detail to chord parts.
- Fingerpicked or strummed parts needing defined treble and bass separation.
- Stage or studio routing where blend and phase controls are useful.
Consider the trade-offs
When to look elsewhere
- Players seeking a conventional six-string setup; this model has seven strings, including an octave G.
- Left-handed players; left-handed availability is listed as no.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
LR Baggs Anthem electronics
Onboard controls cover volume, mix, mic level, and phase.
Detail 03
Full-thickness neck profile
The genuine mahogany neck uses a full-thickness profile with standard taper.
Final check
Know before you order
- 01Left-handed availability is listed as no.
- 02A case is marked sold separately.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What makes the M-7 different from a six-string?
It has seven strings, with an octave G string added to the configuration.
02What controls are on the electronics?
The LR Baggs Anthem system has volume, mix, mic level, and phase controls.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPickups & controls
- Electronics
- LR Baggs Anthem
9 detailsPlayability
- Nut Material
- Bone
- Strings
- 7
- Orientation
- Right handed
- Number of Frets Total
- 20
- Saddle Radius
- 16 inch
- Number of Strings
- 7
- Fingerboard Width At Nut
- 1-11/16 inch
- Scale Length
- 25.4
- Neck Shape
- Full thickness
19 detailsBody & build
- Color
- Natural
- Neck Joins Body At
- 14th fret
- Side Material
- East Indian rosewood
- Top Material
- Spruce
- Construction
- Dovetail neck joint
- Top Color
- Antique toner
- Neck Wood
- Genuine mahogany
- Fingerboard Inlay Style
- Style 28
- Finish Neck
- Gloss
- Neck Color
- Dark mahogany
- Headplate Material
- East Indian rosewood
- Fingerboard Material
- Ebony
- Pickguard
- Faux tortoise
- Body Style
- Full thickness
- Fingerboard Inlay Material
- Mother-of-pearl
- Tuning Machines
- Chrome enclosed gear
- Body Shape
- Full thickness
- Neck Taper
- Standard taper
- Top Inlay Material
- Multi-stripe
1 detailsIn the box
- Case or Gig Bag
- ✕ Sold separately
9 detailsOther
- Pleked
- Yes
- Rosette
- Style 28 multi-stripe
- Lefty Available
- No
- Saddle
- Compensated bone
- Knob
- Small
- Heelcap
- Antique white
- Headplate Logo Style
- Script Old Style overlay
- Headstock Shape
- Solid with square taper and diamond
- Label
- Embossed paper label with pre-printed signature
