Martin Simpson Private Stock Acoustic

  • Select Adirondack Spruce Top
  • Cocobolo Back & Sides
  • Peruvian Mahogany "Martin Simpson" Neck
Martin Simpson Private Stock Acoustic
Martin Simpson Private Stock Acoustic

“The Martin Simpson signature model guitar is simply the result of the PRS team being truly attentive to the feedback of a player. I have felt privileged to be able to tell them what I think will make a better guitar for great acoustic playing, and they have listened to my input from materials to neck width and string spacing, pick up sound and inlays....and when the final model arrived, I was blown away by the results. This model is entirely the best materials, and the specs which I asked for, presented in a deluxe version. It is a great instrument made by people who care and strive always for the highest standards in tone, playability, workmanship and aesthetics.” – Martin Simpson.

Born in the PRS Maryland shop, PRS Acoustics are heirloom-quality instruments with remarkable tone and exquisite playability. A small team of experienced luthiers handcraft all Maryland-made PRS acoustics with passion and attention to detail. The Martin Simpson acoustic comes standard with our customized pickup system. The PRS Acoustic pickup system is a proprietary, full band width Piezo pick up that is combined with a proprietary 18 volt custom-voiced preamp.

Design & Build Philosophies

  • PRS Private Stock acoustics feature our proprietary 15.5" Angelus Cutaway and 16" Tonare Grand body shapes, which elegantly balance playability, tone and beauty.

  • The X-Brace/Classical hybrid design combines the best elements of a classical ladder bracing system and steel string "X"/fan bracing to better pair resonant tops with stiff, reflective back and sides. This style of bracing is what gives PRS acoustics their unique, powerful voice.

  • PRS sands each top to the thickness appropriate for that individual piece of wood. This allows us to achieve the desired deflection and flexibility of each individual top so it reaches its particular unique optimum performance.

  • Stiffer sides offer more stability which results in a long lasting guitar. We use Kevin Ryan A-4 kerfing and a deliberate bracing design to create stiffer than normal sides, contributing to top stability.

  • Stability results in a back that does not become "out of phase" with the top and allows a pure tone to be created. With back braces and kerfing we are able to create a singular reflective surface when joined to the sides, which adds to PRS acoustic's unique sound.

  • We utilize a compound dovetail neck joint. Through our sanding and placement technique we create a "carbon copy image" of the joining areas of the joint which allows for near gapless construction which results in superior stability and active transfer of string energy.

  • PRS Private Stock Acoustics feature a 100% lacquer, nitro-cellulose finish. In its essence, nitro is considered an "organic" material. The composition of this finish allows it to bond to the surface and become a part of the material as opposed to being "on top" of it. As the guitar and finish age the tone will continue to blossom so the full potential of the instrument can be realized.


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  • Foundations
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Shape 15 1/2" Cutaway
Depth (At The Neck Block) 3 5/8"
Depth (At The Tail Block) 4 1/2"
Bracing PRS X-Brace/Classical Hybrid Design
Back and Side Woods Private Stock Grade Cocobolo
Top Wood Select Adirondack Spruce
Top Purfling Green Select Abalone
Top and Back Binding Curly Maple
Rosette Curly Maple and Green Select Abalone
Neck Wood Peruvian Mahogany
Neck Shape "Martin Simpson"
Strength Rod High-Modulus Carbon Fiber
Number of Frets 21
Scale Length 25 1/4"
Nut Width 1.83"
String Spacing 2.36"
Fretboard, Headstock Veneer and Bridge Wood Ebony
Fretboard and Headstock Veneer Purfling Green Select Abalone
Fretboard Inlays Green Select Abalone "J" Birds
Headstock Veneer Inlay Private Stock Eagle
Nut Bone
Saddle Bone
Tuners PRS Tuners
PRS Pickups System Proprietary, full band width piezo pick up with a proprietary 18-volt custom-voiced preamp
Back & Sides Options
Optional Back and Sides Brazilian
Martin Simpson Private Stock Acoustic