{"product_id":"martin-grand-j-28e-dn-doubleneck-standard-series-acoustic-electric-guitar-natural-aged-toner","title":"Martin Grand J-28E DN Doubleneck Standard Series Acoustic-electric Guitar - Natural Aged Toner","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThere are instruments that expand what a guitar can do, and then there is the Martin Grand J-28E DN — an instrument that expands what a guitar can \u003cem\u003ebe\u003c\/em\u003e. For the first time in more than a century, Martin has built a double-neck acoustic guitar, and the Interstellar Tone Traveler approaches it with the reverence it deserves: this is not a novelty, not a conversation piece, not a stunt. It is the result of years of engineering, cutting-edge manufacturing technology developed in Nazareth, and a genuine commitment to solving one of the most complex structural challenges in acoustic guitar building — how to mount two necks on a single Grand Jumbo body and produce a balanced, powerful, stage-ready instrument from the result. The dual compound dovetail neck joints and the entirely unique Double Neck X-Brace — a custom DN non-scalloped X with scalloped tone bars developed specifically for this guitar — represent Martin engineering solutions that didn't exist before this project demanded them. The Grand Jumbo body, Martin's most powerful acoustic platform, provides the acoustic real estate and projection needed to support both a six-string and twelve-string neck simultaneously, with solid Sitka spruce over East Indian rosewood back and sides delivering the bold, resonant tone that the Grand Jumbo format is built to produce.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe six-string neck offers a Modified Low Oval profile at 1 11\/16\" nut width and 2 5\/32\" bridge spacing — familiar, immediate, and fast. The twelve-string neck is wider at 1 13\/16\" nut and 2 5\/16\" bridge spacing, its paired courses opening up the shimmering harmonic complexity and full-bodied shimmer that twelve-string players have always pursued as a distinct tonal universe. Both necks feature satin-finished mahogany, ebony fingerboards with MOP Style 28 inlays, and the same 25.4\" scale length — consistent feel across both platforms, just two entirely different voices waiting to be engaged. Custom Fishman electronics make both necks stage-ready without additional gear. Antique white binding, Style 28 back purfling, aging toner gloss top, and nickel open-gear tuners with butterbean knobs anchor the Grand J-28E DN firmly in the Style 28 tradition — classic Martin appointments on the most unconventional Martin instrument in living memory. For the Interstellar Tone Traveler who has always wanted to explore two sonic dimensions at once, the wait is finally over.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"p1\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003eTop:\u003c\/b\u003e Spruce \u003cbr\u003e\u003cb\u003eFinish Top:\u003c\/b\u003e Gloss\u003cbr\u003e\u003cb\u003eTop Color: \u003c\/b\u003eAging Toner\u003cbr\u003e\u003cstrong\u003eTop Inlay Material:\u003c\/strong\u003e Multi-Stripe\u003cbr\u003e\u003cstrong\u003eTop Detail:\u003c\/strong\u003e None\u003cbr\u003e\u003cb\u003eBinding:\u003c\/b\u003e Antique White\u003cbr\u003e\u003cb\u003eBridge Material:\u003c\/b\u003e Ebony\u003cbr\u003e\u003cb\u003eBridge Style:\u003c\/b\u003e GE Modern Belly - Drop in Saddle\u003cbr\u003e\u003cb\u003eBridge String Spacing:\u003c\/b\u003e \u003cspan\u003e2 5\/32\" (6 String), 2 5\/16\" (12 String)\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eBridge Pin Material:\u003c\/b\u003e Bone\u003cbr\u003e\u003cstrong\u003eBridge Pin Dots:\u003c\/strong\u003e Tortoise Pattern\u003cbr\u003e\u003cstrong\u003ePickguard:\u003c\/strong\u003e None\u003cbr\u003e\u003cstrong\u003ePickguard Inlay:\u003c\/strong\u003e None\u003cbr\u003e\u003cstrong\u003eRosette:\u003c\/strong\u003e Multi-Stripe\u003cbr\u003e\u003cstrong\u003eSaddle:\u003c\/strong\u003e Compensated Bone\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eSaddle Radius:\u003c\/strong\u003e 16\"\u003cbr\u003e\u003cstrong\u003eBody Size:\u003c\/strong\u003e Grand J-14 Fret\u003cbr\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Dovetail Neck Joint \u003cbr\u003e\u003cstrong\u003eBack Material:\u003c\/strong\u003e East Indian Rosewood\u003cbr\u003e\u003cb\u003eSide Material:\u003c\/b\u003e East \u003cspan\u003eIndian Rosewood\u003c\/span\u003e \u003cbr\u003e\u003cb\u003eBody Finish:\u003c\/b\u003e Gloss\u003cbr\u003e\u003cb\u003eBack Purfling\/Strip:\u003c\/b\u003e Style 28 \u003cbr\u003e\u003cb\u003eBack Inlay Material:\u003c\/b\u003e Multi-Stripe\u003cbr\u003e\u003cb\u003eBracing Pattern:\u003c\/b\u003e Unique Double Neck \u003cspan\u003eX-Brace\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eBrace Shape:\u003c\/b\u003e \u003cspan\u003eUnique DN Non Scalloped X with Scalloped Tone Bars\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eBrace Material:\u003c\/strong\u003e Spruce \u003cbr\u003e\u003cstrong\u003eBrace SIze:\u003c\/strong\u003e 5\/16\"\u003cbr\u003e\u003cstrong\u003eHeel Cap:\u003c\/strong\u003e Antique White\u003cbr\u003e\u003cstrong\u003eEndpiece:\u003c\/strong\u003e None\u003cbr\u003e\u003cstrong\u003eEndpiece Inlay:\u003c\/strong\u003e None\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eNeck Shape:\u003c\/strong\u003e Modified Low Oval (6 String), 12 String\u003cbr\u003e\u003cstrong\u003eNeck Taper:\u003c\/strong\u003e High-Performace Taper\u003cbr\u003e\u003cstrong\u003eNeck Material:\u003c\/strong\u003e Mahogany\u003cbr\u003e\u003cstrong\u003eNeck Color:\u003c\/strong\u003e Dark Mahogany\u003cbr\u003e\u003cb\u003eNeck Finish:\u003c\/b\u003e Satin\u003cbr\u003e\u003cstrong\u003eScale Length:\u003c\/strong\u003e 25.4\"\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eNumber of Frets:\u003c\/strong\u003e 20\u003cbr\u003e\u003cstrong\u003eNeck Joins Body:\u003c\/strong\u003e 14 Fret\u003cbr\u003e\u003cstrong\u003eFingerboard Material:\u003c\/strong\u003e Ebony\u003cbr\u003e\u003cstrong\u003eFingerboard Width at 12th Fret:\u003c\/strong\u003e 2 1\/8\" (Six String), 1 13\/16\" (12 String)\u003cbr\u003e\u003cb\u003eNut Width:\u003c\/b\u003e 1 11\/16\" (6 String), 1 13\/16\" (12 String) \u003cbr\u003e\u003cstrong\u003eInlay Style:\u003c\/strong\u003e Style 28\u003cbr\u003e\u003cstrong\u003eFingerboard Inlay Material:\u003c\/strong\u003e MOP\u003cbr\u003e\u003cstrong\u003eFingerboard Binding:\u003c\/strong\u003e None\u003cbr\u003e\u003cstrong\u003eHeadstock Shape:\u003c\/strong\u003e Solid with Square and Taper and Diamond\u003cbr\u003e\u003cstrong\u003eHeadplate Material:\u003c\/strong\u003e East Indian Rosewood\u003cbr\u003e\u003cb\u003eHeadplate Logo Style:\u003c\/b\u003e Script Old Style Overlay\u003cbr\u003e\u003cb\u003eHeadplate Binding Material:\u003c\/b\u003e None\u003cbr\u003e\u003cstrong\u003eHeadplate Detail:\u003c\/strong\u003e None\u003cbr\u003e\u003cstrong\u003eTuning Machines:\u003c\/strong\u003e Nickel Open Gear\u003cbr\u003e\u003cstrong\u003eKnob:\u003c\/strong\u003e Butterbean\u003cbr\u003e\u003cstrong\u003eNut Material:\u003c\/strong\u003e Bone\u003cbr\u003e\u003cstrong\u003eCase:\u003c\/strong\u003e Hardshell\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Martin","offers":[{"title":"Default Title","offer_id":53221900288184,"sku":"10GRANDJ28EDN","price":8199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2795\/3336\/files\/Martin2999440_001availableatInterStellarGuitars.jpg?v=1777668024","url":"https:\/\/www.interstellarguitars.com\/products\/martin-grand-j-28e-dn-doubleneck-standard-series-acoustic-electric-guitar-natural-aged-toner","provider":"Interstellar Guitars","version":"1.0","type":"link"}