Martin Custom Shop D-18 12 String Acoustic Koa front close
Martin Custom Shop D-18 12 String Acoustic Koa front far
Martin Custom Shop D-18 12 String Acoustic Koa back close
Martin Custom Shop D-18 12 String Acoustic Koa back far
Martin Custom Shop D-18 12 String Acoustic Koa front angle 1
Martin Custom Shop D-18 12 String Acoustic Koa back angle 1
Martin Custom Shop D-18 12 String Acoustic Koa front angle 2
Martin Custom Shop D-18 12 String Acoustic Koa back angle 2
Martin Custom Shop D-18 12 String Acoustic Koa open case
Martin Custom Shop D-18 12 String Acoustic Koa neck front
Martin Custom Shop D-18 12 String Acoustic Koa back neck
Martin Custom Shop D-18 12 String Acoustic Koa headstock front
Martin Custom Shop D-18 12 String Acoustic Koa headstock back

Martin Custom Shop D-18 12 String High Flame Koa 2251993

Regular price $4,959.00 Sale

We ventured to the Marin Guitar Factory in Nazareth, Pennsylvania to pick the model that this set of High Flame Koa would be built into. And after the last 2 Martin 12 String Dreadnaughts we received were 2 of the finest sounding and playing 12's we have EVER seen, we HAD to get another one!

Constructed from high flame Hawaiian Koa, this instrum,ent yields a stunning look. A beautiful shade of brown with mahogany like 'pocking' and figuring that changes depending on the angle you view it from. A Gloss finish on the body helps add another layer of depth to the look.

Tone-wise, Koa is one of our shop favorites. It's bright, focused, articulate, and has sweeter than sweet upper harmonics that, when combine with the jingle jangle of a 12 string, it just can't be beat!

A Genuine Mahogany Neck is 1 and 13/16" Nut Width is surprisingly easy to handle. The neck is finished with a satin feel that stays fast and dry no matter how hot your hands get. The fingerboard is made from Ebony as is the bridge.

We dressed this as an 18 series to keep the costs down on it. We built it from exceptional woods but then spared the labor expenses by keeping it free from all the extra abalone and mother of pearl. If your focus is on having the best guitar money can by this side of function over fashion, here it is!

The Music Gallery of Highland Park is proud to be an authorized Martin Guitar Dealer. Blending their Vintage Recipes with modern Manufacturing has given guitar players the best guitars Martin can make. These instruments have never been more playable, more consistent or more righteously priced. Stop but the shop to check out our full inventory of Martin and Martin Custom Shop Acoustic Guitars!




  • Martin Custom Shop 
  • 12 String Dreadnaught
  • High Flame Koa Top
  • High Flame Koa Back
  • High Flame Koa Sides
  • Sitka Spruce Scalloped Braces
  • Style 18 Rosette/Purfling
  • Genuine Mahogany Neck
  • Low Profile Neck Shape
  • Bone Nut
  • 16" Fingerboard Radius
  • 25.340" Scale Length
  • 1 and 13/16" Nut Width
  • German G300 Fretwire
  • Gloss Body Finish
  • Satin neck Finish
  • Black Ebony Fingerboard
  • Black Ebony Bridge
  • 2 and 5/16" String Spacing at Bridge
  • Extra Light Phosphor Bronze Strings MSP4600
  • Original Hardshell Case

The Music Gallery
(847) 432-6350 
Musicglry@gmail.com