Tonedevil Guitars Company Profile:

” The Hollow Arm “

a documentary by Alden Morgan
in association with The Powell Brothers

The Hollow Arm from Morgan Post on Vimeo.

Dave’s Harp Guitar Demo Videos:


S-12 Demo Video – Dave demonstrates one of the newest S-12 Symphony Harp Guitars and talks about its features.

Dave Defines Harp GuitarsWhat is a harp guitar?  Dave defines and plays examples on the S-12 harp guitar.

Nylon Core Subs Vs. Steel Core Subs


Dave plays 2 of the S-12HG harp guitars, one with nylon core sub strings, the other with steel core to hear the tonal differences. You be the judge of which sound you prefer!

Walnut vs. Mahogany Harp Guitar ThumbnailBlack Walnut Vs. African Mahogany Back/Sides


Dave demos the S-12HG with black walnut vs. african mahogany back and sides:

Demo of the A-13 Arch Harp Guitar


Featuring a figured redwood top, walnut back and sides and sapele neck
See the specs of the A-13 Arch Harp Guitar

Tonedevil Harp Guitars featured in the short documentary: “Harp Guitar Heroes”:

Dave demos the new S-12 Harp Guitar with his piece: “Year of the Cicada”