Quarterman QD-9 Res-O-Cone for Duolian Guitar – 9 1/2″

QD-9 Quarterman Res-O-Cone : A hand-spun aluminum cone will retro-fit the earliest original Duolian guitars of the 1920s. Genuine Quarterman quality assures you of the best tone and volume in your guitar.

Product Features

  • Hand-spun from special, aircraft-grade aluminum
  • Designed for any old or new Duolian with a 9 1/2-inch resonator
  • Cone is the exact thickness and weight for optimum tone and volume
  • Top builders and players acclaim Res-O-Cones as the best in the world
  • Made in the USA