Eastman AC630 SB - 

Bring stage-level presence to your performance with the Eastman AC630-SB — a jumbo acoustic that marries powerful voice, refined looks, and Eastman’s build precision. The “SB” denotes the sunburst finish, which complements the visually striking combination of flamed maple back/sides and a solid Engelmann spruce top.

Command attention with the bold voice and sheer projection of this 17″ lower-bout jumbo. The solid Engelmann spruce top offers clarity, articulation, and dynamic responsiveness, while the flamed maple back and sides bring lively overtones, brightness, and visual flair. The body is finished in Eastman’s Truetone gloss, which is thin enough to resonate without over-dampening.  

A maple neck (Traditional Even “C” profile) and ebony fingerboard provide a crisp, light feel and excellent tonal transfer. With 20 frets, a 25.4″ scale, and bone nut & saddle, this guitar is primed for both rhythm strumming and lead work.  It’s built with hand-scalloped X bracing under the top, dual-acting truss rod for stability, and figural maple binding for elegant edge detail.  

    •    Top: Solid Engelmann spruce under Truetone gloss  

    •    Back & Sides: Solid flamed maple — bright, articulate, visually striking  

    •    Neck / Fingerboard: Maple neck with Traditional Even “C” profile; ebony fingerboard, 12″ radius  

    •    Scale / Nut: 25.4″ scale length; bone nut width ~1.75″  

    •    Frets: 20 Jescar FW43080 frets  

    •    Bracing: Hand-scalloped X bracing for better dynamic response  

    •    Truss Rod: Dual-acting for neck stability and adjustment flexibility  

    •    Binding & Inlay: Figured maple binding on top, back, fingerboard, headstock; pearl & abalone “Palace” style inlays  

    •    Tuners / Hardware: Gold Gotoh SG301-20GG tuners (gold hardware accents)  

    •    Bridge / Saddle: Ebony bridge, bone saddle; string spacing ~2 5/32″  

    •    Finish: Gloss Truetone on body and neck  

    •    Case: Comes with premium hardshell case  

The AC630-SB delivers a voice that is bold, clear, and expansive. The combination of Engelmann spruce and flamed maple yields a sound with crisp highs, articulate mids, and enough body to project in large rooms. Despite its size, the tone remains controlled and musical — maple’s natural brightness softens in balance with the spruce top. It’s especially suited for strummers, flatpickers, or performers who want to fill a room acoustically without needing amplification. Even for fingerstyle players, the jumbo body responds well enough to lighter touch when needed.

The guitar pictured is the exact instrument that is for sale. Please review all pictures carefully for detail. All instruments are available at our store showroom in Warrenton, Virginia, and are set up to the buyer’s personal specifications at no additional charge upon purchase. Instruments may not be shipped in the original shipping container. All instruments are guaranteed to be packed safely and freshly set up per your specifications. Please email or call and we’d be happy to provide an in-hand description instrument and answer any questions you have.