*Photos shown are of the actual guitar. Serial Number 2713238.
Introducing the Martin Custom Shop ”D” Dreadnought Body, 28 Style, Exceptional Figured Koa Top, Exceptional Figured Koa Back & Sides, 6 String
“You have to see this guitar. It is a beauty! It sounds exceptional and it plays like butter.” Easy Music Center
The Martin HD28-CUSTOM-KOA is an exceptional guitar designed for discerning musicians. This guitar is built with top-of-the-line materials to produce a sound that is unmatched in quality. The top of the guitar is made of exceptionally figured Koa, which produces a rich and warm tone. The bracing material is Sitka Spruce, which provides strength and stability to the guitar’s structure. The forward-shifted X-brace pattern adds more depth to the guitar’s sound.
The Martin HD28-CUSTOM-KOA is designed to meet the highest standards in the industry. The fingerboard material is made of black ebony, which gives it a smooth and sleek finish. The fingerboard inlays are made of diamonds and squares long with regular abalone pearl species, which add a touch of elegance to the guitar. The neck is made of select hardwood and has a modified low oval profile that offers maximum comfort to the player. The neck taper is a high-performance taper, which allows for easy finger movement across the fretboard.
The Martin HD28-CUSTOM-KOA is a 6-string guitar with a modern belly bridge style. The tuning machines are Grover Nickel V97-18NA StaTite 18:1 Vintage Button, which ensures that the guitar stays in tune for long periods of time. The finish of the guitar is standard with a gloss body and satin neck, which gives it a classic and elegant look. The body shape is “D” dreadnought, which produces a powerful and well-balanced sound. The Martin HD28-CUSTOM-KOA is an exceptional guitar that is built to last, making it the perfect addition to any musician’s collection.
Specs
- Appointment Level: Standard
- Adhesive: Modern Adhesive
- Top Material: Exceptional Figured Koa
- Bracing Material, Top: Sitka Spruce
- Back and Side Material: Exceptional Figured Koa
- Binding Material: European Flamed Maple
- Top Pearl: None
- Rosette Style: Style 28 Boltaron
- Bridge Style: Modern Belly
- Neck Material: 12/4 Genuine Mahogany Mfg Pref
- Neck Profile: Modified Low Oval
- Neck Taper: High Performance Taper
- Tuning Machines: Grover Nickel V97-18NA StaTite 18:1
- Vintage Button
- Fingerboard Material: Black Ebony
- Fingerboard Inlay: Diamonds and Squares Long
- Finish Type: Standard
- Finish Package: Gloss Body w/ Satin Neck
- Top Color: Clear
- Electronics: None
- Frets Clear: 14 Frets Clear of Body
- Body Shape: ”D” Dreadnought Body
- Inspired by: HD28
- Appointment Level: Standard
- Base Model Note:
- Adhesive: Modern Adhesive
- Orientation: Right Handed
- String Number: 6 String
- Venetian Cutaway: No
- Electronics: None
- Body Depth: Standard
- Scale Length: 25.4″
- Compensated Scale Length: 25.470″
- Neck Joint: Dovetail
- Truss Rod: Adjustable 14 Fret
TOP
- Top Material: Exceptional Figured Koa
- Top Material Upgrade: Premium
- Final Top Grade: N/A
- Top Thickness: Standard
- Bracing Material, Top: Sitka Spruce
- Bracing Pattern, Top: X Brace – Forward Shifted
- Bracing Pattern Number, Top: 3-A DOMLE
- Bracing Shape, Top: Scalloped
- Bracing Style, Top: Standard
- Bracing Size, Top: 5/16”
- Top Note:
- Binding Material: European Flamed Maple
- Area 1: Top
- Inlay 1: BI,Fiber,Black,.030x.060×65
- Area 2: Top
- Inlay 2: BI,Maple,.040,.080×64
- Area 3: Top
- Inlay 3: BI,Fiber,B/M/B,.015/.012/.015x.060×63
- Area 4: Back
- Inlay 4: BI,Fiber,B/M/B,.015/.012/.015x.060×63
- Area 5: Side
- Inlay 5: BI,Fiber,Black,.015x.080×63
- Area 6: Endpiece
- Inlay 6: BI,Fiber,B/M/B,.015/.012/.015x.060×63
- Area 7: Heelcap
- Inlay 7: HC,Black Fiber,.015×1.125×1.125
- Top Pearl: None
- Top Pearl Species: N/A
- Top Pearl and Thickness: N/A
- Back Pearl and Thickness: N/A
- Side Pearl and Thickness: N/A
- Endpiece Pearl and Thickness: N/A
- Binding and Body Pearl Note:
- Rosette Style: Style 28 Boltaron
- Rosette Pearl Species: N/A
- Rosette Pearl Species And Thickness: N/A
- Rosette Poly: None
- Pickguard Material: None
- Under Finish Pickguard: No
- Pickguard Pattern: N/A
- Pickguard Inlay: None
- Pickguard Inlay Pearl Species: N/A
BACK AND SIDE
- Front Block: BL,Mahogany,Front,D,14,Adj
- Rear Block: BL,Mahogany,Rear,D
- Back Piece Qty: 2 Piece
- Back and Sides Material: Exceptional Figured Koa
- Back and Sides Material Upgrade: Premium
- Back and Sides Final Grade: n/a
- Back and Sides Note:
- Wedge Material: None
- Wedge Material Upgrade: n/a
- Wedge Final Grade: n/a
- Back Purfling: HD Zig Zag
- Bracing Material, Back and Sides: Sitka Spruce
- Bracing Pattern: D14 Fret
- Center Strip: Sitka Spruce
- Center Strip Stamp Location: Between 1st & 2nd Brace
- Caution Stamp: None
- Ribbons: Spanish Cedar
- Side Strips: East Indian Rosewood
- Endpiece Material: European Flamed Maple
NECK
- Neck Material: 12/4 Genuine Mahogany Mfg Pref
- Neck Center Piece Material: n/a
- Neck Profile: Modified Low Oval
- Neck Taper: High Performance Taper
- Heelcap Material: European Flamed Maple
- Headstock: Solid
- Diamond Volute: Standard
- Headstock Taper: Square
- Corners: Standard
- Headplate Material: East Indian Rosewood
- Headplate Material Grade: Standard
- Headplate Thickness: Standard
- Headplate Decal: Old Style Gold
- Headplate Binding: No
- Headplate Inlay: None
- Headplate Inlay Pearl Species: N/A
- Stamp: None
FINGERBORAD
- Fingerboard Material: Black Ebony
- Fingerboard Material Grade: 3
- Fingerboard Stain: No
- Fingerboard Oil: Yes
- Fingerboard Radius: 16”
- Fingerboard Width at Nut: 1 3/4″
- Fingerboard Width at 12th Fret: 2 1/8″
- String Spacing: 2 5/32”
- Fingerboard Length: 17.989”
- Fingerboard Thickness: Standard Thickness
- Fret Wire: Standard
- Fret Slot: 0.023 Pocketed
- Total Frets: 20 Total
- Fingerboard Binding: No
- Fingerboard Inlay: Diamonds and Squares Long
- Fingerboard Inlay Pearl Species: Regular Abalone
- Side Dots: White
- Side Dot Postion: One at 3rd, 5th, 7th, 9th, Two at 12th, One at 15th & 17th Frets
- Nut Material: Bone
- Nut Positioning: Flat
FINISH
- Finish Type: Standard
- Finish Package: Gloss Body w/ Satin Neck
- Finish Taping Notes: Tape All Bindings, Inlays, Heelcap & Endpiece for Stain & Fill
- Notes for Finish: None
- Top Color: Clear
- Body Filler: Rosewood
- Body Stain: None
- Neck Filler: Rosewood
- Neck Stain: None
- Solid Color: None
- Solid Color Neck: None
- Complete Burst: None
BRIDGE
- Bridge Material: Black Ebony
- Bridge Style: Modern Belly
- Saddle Style: Drop in Saddle
- Bridge Inlay: None
- Bridge Inlay Pearl Species: N/A
- Saddle Material: Compensated Bone
- Bridge Pins: White w/ Faux Tortoise
- Bridge End Pins: White w/ Faux Tortoise
EXTRAS
- Tuning Machines: Grover Nickel V97-18NA StaTite 18:1 Vintage Button
- Tuning Machine Drilling: R 11/32”
- Strings: Authentic Acoustic Lifespan 2.0
- Strings Guage: Medium
- Strap Button: None
- Case: Molded Hardshell
- Strap: None
- Custom Label: None












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