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AT 18

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The SJ is our version of what is commonly called a small Jumbo. Although the 16 inch lower bout is slightly wider than a dreadnought, and the sides almost as deep, the tight curve at the waist creates in a very different sound chamber. SJs, especially examples in maple, typically have a more pronounced midrange response when compared to a dreadnought, making them ideal candidates for a rounded cutaway. Players looking for the bass and overall volume of a large guitar, but with lots of treble clarity and midrange crunch, often find just what they need in the curvaceous SJ.

Standard Features Include:

  • Select sitka spruce top
  • East Indian rosewood back and sides
  • Cross-cut grained ivoroid and wood nitrate rosette
  • Grained ivoroid top/back/neck/peghead binding
  • Black/white wood purfling with 3-style backstrip
  • Pre-war scalloped bracing
  • Tortoise-style celluloid pickguard
  • High gloss nitrocellulose lacquer finish
  • Mahogany neck
  • Double bound "Haircut" headstock
  • 15 degree headstock angle
  • Ebony peghead overlay with inlaid Collings logo
  • Ebony fingerboard with ebony SJ-style bridge
  • Mortise and tenon hybrid neck joint
  • 20 Frets, neck joins the body at the 14th fret
  • Medium-Fat "C" neck profile and 2 3/16" string spacing
  • 14"-26" Compound fingerboard radius
  • 1 11/16" Bone nut and drop-in saddle
  • 25 1/2" Scale length
  • Medium 18% nickel-silver fretwire
  • Mother of pearl Modern Diamond fretboard & peghead inlay
  • Fully adjustable truss rod
  • Ebony bridge pins and end pin
  • Nickel Schaller mini-tuners with 1:14 ratio
  • Recommended string gauge - D'Addario EJ-17 (.013"-.056")
  • Collings deluxe hardshell case by TKL

There Are No Shortcuts: Collings Acoustic Guitars

This short documentary film examines acoustic guitar building at Collings Guitars and the focus on quality that has come to define the company culture.


  • Body Length: 20 1/8"
  • Body Depth at Side: 4 1/2"
  • Lower Bout Width: 16"
  • Total Length: 41"
  • Scale Length: 25 1/2"
  • Standard Nut Width: 1 11/16"


  • Factory Strings: D'Addario EJ-17 (.013"-.056")
  • Recommended Gauges:
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