Jumbo Series JS

The JS Jumbo has gone through a series of subtle refinements to better align with John’s modern approach to building. It remains a large‑bodied guitar with impressive volume and a deep, powerful response, yet the JS is equally capable of delivering a smooth, more nuanced voice when played with a lighter touch.

While the JS shines in hard, aggressive playing styles — where its headroom and projection really come alive — it maintains clarity and balance across the entire dynamic range. This versatility makes it a compelling choice for players who want a big instrument that doesn’t sacrifice subtlety.

The JS is also an excellent platform for a 12‑string configuration. Its strong low‑end foundation pairs beautifully with the added shimmer of the octave courses, creating a full, harmonically rich sound that remains grounded and musical.

JS Specifications

As a custom guitar, most of the specifications listed can be modified to suit your needs. The listed specs are guidelines that are typical for this model

JS Outline/Bracing

Top Bracing                                      Double X – Adirondack Spruce

Back Bracing                                    Radial – Adirondack Spruce

Body Length                                     21″

Width Lower Bout                          16-5/8″

Width Upper Bout                          12-1/8″

Width at Waist                                9-3/4″

Body Depth                                      4-5/8″

Cutaway                                           Available

Body Binding                                   Typically Wood

Fret at Body Connection              14th Fret

Neck                                                   Mahogany

Bridge                                                 Typically Ebony – Artisan Style

Fretboard                                          Typically Ebony with 16″ Radius

Fretboard Binding                          Typically matches Body Binding

Compensated Nut                          Typically Bone 1-3/4″

Saddle                                                .200″ wide Bone – Compensated

String Spacing at Bridge                2-1/4″

Bridge Patch                                     Composite – Maple

Typical Scale Length                      25.4″

Headstock                                         Typically SSP (Straight String Pull)

Truss Rod                                          Custom Titanium

Truss Rod Access                            Stealth at Headstock

Tuning Machines                            Gotoh 510s (Typical)

Finish                                                 Urethane

Pickgaurd                                         On Request

Case                                                   Ameritage