C.G. Conn 10DY Double French Horn Overview

The C.G. Conn 10DY CONNstellation is a professional F/Bb double horn that brings Conn's established horn-making tradition to a Geyer-style design. It is positioned for advanced and professional players seeking the security of a full double horn with a more direct response and compact tonal focus than Conn's classic Kruspe-style 8D concept. This particular instrument is the standard fixed-bell 10DY configuration.

C.G. Conn 10DY Double French Horn Specifications

• Key: F/Bb, reversible
• Wrap: Geyer style
• Bore Size: .468 inch
• Bell Diameter: 12 inches
• Bell Material: Yellow brass
• Finish: Clear lacquer
• Case: Fitted C.G. Conn hard case
• Accessories: MC Farkas mouthpiece, hand guard, Bach Synthetic+ rotor oil
• Serial Number: 657834

Condition & Setup

This open box horn is in excellent playing order. It has been professionally serviced, set up, and play tested by The Mighty Quinn Brass and Winds. The clear lacquer remains bright and glossy, with minor fine scratches and handling scuffs visible on portions of the valve levers, linkage bar, and adjacent mechanism hardware.

Who the 10DY Double French Horn Is For

The 10DY is intended for professional players, conservatory-level musicians, and advanced hornists who prefer the more direct feel associated with a Geyer-style wrap. Its yellow-brass, small-throat bell concept supports a centered, articulate tonal approach suited to orchestral, chamber, solo, and audition settings. Players seeking the broader tonal character traditionally associated with Conn's Kruspe-style 8D should compare the two designs, as each serves a distinct playing preference.

Common Questions About the C.G. Conn 10DY

How does the 10DY differ from the Conn 8D?

The 10DY uses a Geyer-style wrap with yellow-brass construction and a 12-inch small-throat Schmidt-style bell. The 8D uses a Kruspe-style wrap, nickel-silver construction, and a larger 12.25-inch large-throat bell. These designs offer different response, tonal, and ergonomic concepts rather than a simple difference in quality.

What does the reversible F/Bb configuration change?

The reversible change valve allows the horn to stand in either F or Bb when the thumb lever is not engaged. The player can select the preferred default side while retaining the full range and flexibility of a double horn.

Is the bell detachable?

The 10DY has a fixed bell. Conn uses the 10DYS designation for the corresponding detachable-bell configuration.

We are proud to be an authorized C.G. Conn dealer