10DY

Professional Connstellation Double Horn in F/B♭

Our Top Picks are the instruments most often chosen by players and educators for the classroom, studio, and stage.
String Linkage
Yellow Brass
Hardshell Case, Holton Farkas Mouthpiece

The vintage instruments of Carl Geyer are revered for their sound, construction, and design. The all-new Conn 10DY embraces that tradition with its cartridge brass construction, unique mouthpipe, and century-old bell dimensions. With a mouthpipe that is not braced but directly soldered to the bell, the resonance and response of the 10DY are dramatically different from any other mass-produced horn.

The new mouthpipe taper gives a comfortable resistance, requiring less effort from the player and enhancing endurance. The small-throated “Schmidt”-style bell has a compact sound that projects effortlessly to the back of the orchestra hall. The 10DY is equally at home in chamber ensembles where the warmth of the all-brass construction blends with strings, winds, and brass alike.

The essentials of Mr. Geyer’s timeless horns have been preserved, with modern design processes only lightly touching the 10DY. CNC-machined mouthpiece receivers ensure exact mouthpiece fit for optimum response, new manufacturing techniques create a more consistent instruments, and the addition of an adjustable finger hook and mouthpipe water key make performance more comfortable.

  • All brass mouthpipe, branches, slide tubing, ferrules, and bell
  • Traditional "Schmidt"-style bell
  • Traditional direct-soldered Geyer-taper mouthpipe
  • Fixed bell
  • Clear lacquer finish

  • 12” bell
  • All brass construction
  • Hardshell case
  • Direct-soldered mouthpipe
  • Small-throat bell
  • Traditional Geyer taper with comfortable resistance
  • .468” bore
  • Adjustable finger hook
  • Mouthpipe water key
  • Reversible fourth rotor (F/B-flat to B-flat/F)

Find the 10DY Near You

Please note that the products displayed on this website may not be available in your country or region. For more information, contact your nearest dealer.