
Martin D-41-KOA-CS Custom Shop Koa D-41
- Regular price
- $9,164.00
- Sale price
- $9,164.00
- Regular price
-
$9,164.00 - Unit price
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808-591-0999 or admin@easymusiccenter.com
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- Description
- Specs
- Inspection and Set-up
- Humidity Care
*These are stock photos.
This Custom Shop Koa Martin Guitar is on order!
Expected arrival: September 2025.
Want to reserve it? Call us at 808-591-0999.
The Martin D-41 is a trusted icon in Martin’s acoustic lineup, blending powerful tone with refined elegance. Its Dreadnought body size delivers a bold, projective sound with strong bass, clear trebles, and rich overtones, making it ideal for players who want their music to fill the room. Featuring a Golden Era (GE) Modified Low Oval profile, high-performance taper, and 25.4" scale length, ensures smooth playability. Luxurious abalone details, including the rosette, top-edge trim, and hexagon inlays, elevate its timeless design. Complete with antique white binding, a bound ebony fingerboard, an ebony bridge with bone pins, gold open gear tuners, and a variety of striking gloss options, the D-41 is a guitar you can trust to unleash the artist within.
- Overview
- Instrument: Custom ''D'' Dreadnought Body
- Cutaway: No
- Orientation: Right Handed
- Neck Joint: Dovetail
- Appointment Level: Standard
- Adhesive: Modern Adhesive
- Top Material: Highly Flamed Koa
- Bracing Material, Top: Spruce
- Back and Side Material: Highly Flamed Koa
- Binding Material: Antique White
- Top Pearl: Perimeter Only
- Rosette Style: Style 45 Boltaron
- Bridge Style: GE Modern Belly
- Neck Material: 12/4 Genuine Mahogany
- Neck Profile: GE Modified Low Oval
- Neck Taper: High Performance Taper
- Tuning Machines: Grover Gold V97-18GA StaTite 18:1 Vintage Buttons
- Fingerboard Material: Black Ebony
- Fingerboard Inlay: Style 45 Snowflake (Long)
- Finish Type: Standard
- Finish Package: Gloss Body w/Satin Neck and Polished Headplate
- Top Color: Clear
- Electronics: None
- Body
- Frets Clear: 14 Frets Clear of Body
- Body Shape: ''D'' Dreadnought Body
- Inspired by: D - 41 Style
- Adhesive: Modern Adhesive
- Orientation: Right Handed
- String Number: 6
- 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
- Frets Clear: 14 Frets Clear of Body
- Top
- Top Material: Highly Flamed Koa
- Top Material Upgrade: Premium
- Top Thickness: Standard
- Bracing Material, Top: Spruce
- Bracing Pattern, Top: X Brace - Forward Shifted
- Bracing Pattern Number, Top: 3-A DOMLE
- Bracing Shape, Top: Scalloped
- Bracing Style, Top: Golden Era
- Bracing Size, Top: 5/16''
- Binding Material: Antique White
- Top Pearl: Perimeter Only
- Top Pearl Species: Regular Abalone
- Top Pearl and Thickness: Regular Abalone 0.064''
- Rosette Style: Style 45 Boltaron
- Rosette Pearl Species: Regular Abalone
- Rosette Pearl Species And Thickness: Regular Abalone 0.064''
- Rosette Poly: 0.68 Poly
- Pickguard Material: Faux Tortoise
- Under Finish Pickguard: No
- Pickguard Pattern: Pattern 2B
- Pickguard Inlay: None
- Top Material: Highly Flamed Koa
- Inlay
- Top Inlay 1: BI,Boltaron,B/W/B,.0495x.062x64
- Top Inlay 2: BI,Boltaron,B/W/B,.0495x.062x64
- Back Inlay 1: BI,Boltaron,B/W/B,.0495x.062x64
- Endpiece Inlay 1: BI,Boltaron,W/W/B,.0325x.062x64
- Headplate Inlay 1: BI,Boltaron,W/W/B,.0325x4/32x64
- Top Inlay 1: BI,Boltaron,B/W/B,.0495x.062x64
- Back and Sides
- Front Block: BL,Mahogany,Front,D,14,Adj
- Rear Block: BL,Mahogany,Rear,D
- Back Piece Qty: 2 Piece
- Back and Sides Material: Highly Flamed Koa
- Back and Sides Material Upgrade: Premium
- Back Purfling: Style 45 (Mosaic)
- Bracing Material, Back and Sides: Spruce
- Bracing Pattern: D14 Fret
- Center Strip: Spruce
- Center Strip Stamp Location: Between 1st & 2nd Brace
- Caution Stamp: None
- Ribbons: Spanish Cedar
- Side Strips: East Indian Rosewood
- Endpiece Material: Antique White
- Front Block: BL,Mahogany,Front,D,14,Adj
- Neck
- Neck Material: 12/4 Genuine Mahogany
- Neck Profile: GE Modified Low Oval
- Neck Taper: High Performance Taper
- Heelcap Material: Antique White
- Headstock: Solid
- Diamond Volute: Long
- Headstock Ears: Authentic
- Headstock Taper: Square
- Corners: Standard
- Headplate Material: Highly Flamed Koa
- Headplate Material Grade: Premium
- Headplate Thickness: Standard
- Headplate Decal: None
- Headplate Binding: Yes
- Headplate Miter: No
- Headplate Inlay: CFM Block
- Headplate Inlay Pearl Species: Select Abalone
- Additional Headplate Inlay: None
- Stamp: C.F. Martin & Co.
- Fingerboard
- 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: Authentic Thickness
- Fret Wire: Standard
- Fret Slot: 0.023 Through
- Total Frets: 20 Total
- Fingerboard Binding: Yes
- Fingerboard Miter: No
- Fingerboard Inlay: Style 45 Snowflake (Long)
- Fingerboard Inlay Pearl Species: Select Abalone
- Additional Fingerboard Inlay: None
- Side Dots: Black
- Side Dot Position: One at 3rd, 5th, 7th, 9th, Two at 12th, One at 15th & 17th Frets
- Nut Material: Bone
- Nut Positioning: Angled
- Finish
- Finish Type: Standard
- Finish Package: Gloss Body w/Satin Neck and Polished Headplate
- 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
- Finish Type: Standard
- Bridge
- Bridge Material: Black Ebony
- Bridge Style: GE Modern Belly
- Saddle Style: Drop in Saddle
- Bridge Inlay: None
- Saddle Material: Compensated Bone
- Bridge Pins: Bone w/ Paua
- End Pin: Bone w/ Paua
- Bridge Material: Black Ebony
- Extras
- Tuning Machines: Grover Gold V97-18GA StaTite 18:1 Vintage Button
- Tuning Machine Drilling: R 11/32''
- Strings: Authentic Acoustic Lifespan 2.0
- Strings Guage: Medium
- Strap Button: None
- Case: 5-Ply Hardshell
- Strap: None
- Custom Label: None
- Custom Shop Credentials Book: Yes
- Tuning Machines: Grover Gold V97-18GA StaTite 18:1 Vintage Button
At Easy Music Center, we care for our instruments from the moment they arrive to when they ship to your door. All instruments are stored in a climate controlled environment and put through a 12-point inspection checklist before being shipped.
First, we check the finish of the instrument, carefully inspecting any blemishes on the surface. Next, we check the playability and setup by inspecting and adjusting the truss rod (if available), bridge, nut, and frets to manufacturer factory specifications. Any request made outside of manufacturer factory specifications can incur additional charges for parts and labor. If the instrument has electronics, we test all of the electronic components to make sure they are functioning properly.
After a thorough inspection, we then move on to maintenance. We start by lubricating any moving parts on the instrument, such as tuning machines. We then move on to cleaning and oiling the fretboard along with the frets.
Once maintenance is done, we stretch and tune the strings and play test the instrument. After this, we do a final inspection and clean/detail the instrument before packing it up for shipment.
We’re excited to be a part of your instrument buying experience.
Acoustic guitars and ukulele are made of wood, and wood is sensitive to changes in climate. Shifts in temperature or relative humidity can affect your instrument in multiple ways, some of which can lead to costly repairs if you’re not careful. Solid woods in particular are especially prone to the effects of climate fluctuation. For example, extended exposure to low relative humidity (below 40% RH) can dry out the wood, causing it to shrink and run the risk of cracking. Similarly, excessive humidity can cause the wood to absorb moisture and swell, potentially causing other problems. Without adequate humidity control (especially in drier local climates), acoustic instruments can crack and their necks can warp, causing problems with fretting, intonation and playability.
So how do you prevent this kind of damage? Easy: by keeping your guitars and ukulele properly humidified (ideally between 40-60% RH). The easiest way to do this is by storing your instruments in a case with a case two-way humidifier inside. A two-way humidifier will slowly absorb or release moisture inside your case, maintaining humidity to help ensure your instrument doesn’t suffer damage. Using a digital hygrometer can help you monitor humidity levels around your instrument.
Symptoms of a dry acoustic instrument:
- Low action. Strings are very close to the fretboard.
- Hump on the fretboard where the neck joins the body.
- Sunken top across the soundboard between bridge and fingerboard.
- The back of instrument looks very flat when it is dried out.
- Sharp fret ends extend beyond the edge of the fretboard.
- The plane of the neck angle on a dry instrument hits above the top of the bridge.
Symptoms of a wet acoustic instrument:
- High action. Strings that are unusually high off the fretboard, making it difficult to play.
- Unusually swollen top
- Unusual warp on the top, back or both at the end-block
- Improper neck angle. Sighting the neck to the bridge, the frets will appear to hit below the bridge.
The D’Addario Two-Way Humidification System
Using patented technology, the D’Addario Two-Way Humidification System features disposable, moisture-filled packets with a breathable membrane that provides two-way humidity control, meaning it can either release or absorb moisture to consistently maintain a predetermined relative humidity (RH) level of 45-50 percent.
Music Nomad Humilele Ukulele Humidifier
Music Nomad the leader in equipment care products, has developed an easy to use, no mess, and low maintenance Ukulele humidifier. The Humilele rests securely on top of the strings to safely and evenly hydrate your Ukulele to avoid these problems.
Final Notes on Humidity Control
To monitor the amount of humidity your instrument is receiving, we recommend the purchase of a digital hygrometer, a device that gauges and provides a read-out of humidity levels. It can be kept in the room where you store your instruments, or, better yet, in a central location inside the instrument case, preferably Velcro’d to the outside of the accessories compartment (facing the heel). The optimal range for your guitars and ukulele is 45-55% RH.
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