From the official Waterloo WL-JK product page:
Full-bodied in both tone and stature, the aptly nicknamed "Jumbo King” is the largest size offering in the Waterloo line and a modern day tribute to jumbo-sized guitars of the early 1940s.
Originally manufactured by Regal for the mail-order enterprise Montgomery Ward, this slope-shoulder body size was designed to provide performers of the era with enough volume and power for professional radio work. The WL-JK accomplishes this and more by employing a full five-inch body depth and a slightly narrow waist to enhance both the bass and treble response.
The WL-JK is available in a minimally appointed “standard” version as well as a “deluxe” version featuring added bindings, true-to-era "valve cover" tuners, and a full-body sunburst finish. Both models utilize vintage inspired x-bracing and prominent v-shaped necks with fully adjustable truss rods, and are also available with optional East Indian rosewood back and sides.
All Waterloo models are handmade in Austin, Texas.
- Jumbo body
- Sitka spruce top
- Mahogany back/sides
- Indian rosewood fingerboard
- 1-3/4" nut width
- 25-1/2" scale
- 2-3/8" string spacing
- Moderate V neck profile
- D'Addario Medium EJ17 (13 - 56) strings
- Hardshell case