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The C.G. Conn 10DY CONNstellation is a professional double horn from Conn's respected CONNstellation family, designed around a Geyer-wrap F/Bb layout for players who want a focused, efficient response with the flexibility of a full double horn. Conn's professional horn lineage is well established among serious horn players, and the 10DY offers a yellow brass, small-throat bell concept that gives it a distinct place alongside Conn's better-known Kruspe-wrap models.
C.G. Conn 10DY Double French Horn Specifications
- Instrument Type: Double French horn
- Key: F/Bb, reversible
- Wrap: Geyer
- Bore Size: .468 inch
- Bell: 12 inch small-throat Schmidt-style yellow brass bell
- Finish: Clear lacquer
- Case: C.G. Conn hard case
- Accessories: Holton Farkas French horn mouthpiece and Bach Synthetic+ rotor oil
- Serial Number: 657550
Condition & Setup
This Open Box instrument is in excellent playing order and has been professionally serviced, set up, and play-tested by The Mighty Quinn Brass and Winds. The lacquer presents well overall, with minor surface scratches, scuffs, and handling marks visible around the bell and throat area. The rotor and lever assembly is present, with light handling marks and dulling visible on the hardware.
Who the 10DY Double French Horn Is For
The 10DY is suited to advanced students, serious ensemble players, and professional hornists who want a Conn professional double horn with a Geyer-wrap design concept. Its yellow brass construction and small-throat bell place it in a more centered and articulate tonal direction than players may associate with larger Kruspe-wrap nickel-silver horns, making it worth considering for orchestral, wind ensemble, chamber, and teaching use where clarity, security, and projection all matter.
Common Questions About the C.G. Conn 10DY
How does the 10DY fit within Conn's CONNstellation horn family?
The 10DY is a professional CONNstellation double horn with a Geyer-wrap layout, .468 inch bore, and yellow brass small-throat bell. It gives players a Conn professional option with a different design concept from Conn's well-known Kruspe-wrap 8D.
What does the Geyer-wrap design offer a horn player?
Geyer-wrap double horns are often chosen by players who value an efficient, centered response and clear articulation. The design can appeal to players who want a direct feel while retaining the range and flexibility of a full F/Bb double horn.
How does the 10DY differ from the Conn 8D?
The 10DY uses a Geyer wrap and yellow brass small-throat Schmidt-style bell, while the Conn 8D is associated with a Kruspe wrap and all nickel-silver construction. The choice between them is a matter of tonal concept, response preference, and playing application.
We are proud to be an authorized C.G. Conn dealer
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
C.G. Conn 10DY CONNstellation Professional Double Horn in Lacquer
C.G. Conn 10DY Double French Horn Overview
The C.G. Conn 10DY CONNstellation is a professional double horn from Conn's respected CONNstellation family, designed around a Geyer-wrap F/Bb layout for players who want a focused, efficient response with the flexibility of a full double horn. Conn's professional horn lineage is well established among serious horn players, and the 10DY offers a yellow brass, small-throat bell concept that gives it a distinct place alongside Conn's better-known Kruspe-wrap models.
C.G. Conn 10DY Double French Horn Specifications
- Instrument Type: Double French horn
- Key: F/Bb, reversible
- Wrap: Geyer
- Bore Size: .468 inch
- Bell: 12 inch small-throat Schmidt-style yellow brass bell
- Finish: Clear lacquer
- Case: C.G. Conn hard case
- Accessories: Holton Farkas French horn mouthpiece and Bach Synthetic+ rotor oil
- Serial Number: 657550
Condition & Setup
This Open Box instrument is in excellent playing order and has been professionally serviced, set up, and play-tested by The Mighty Quinn Brass and Winds. The lacquer presents well overall, with minor surface scratches, scuffs, and handling marks visible around the bell and throat area. The rotor and lever assembly is present, with light handling marks and dulling visible on the hardware.
Who the 10DY Double French Horn Is For
The 10DY is suited to advanced students, serious ensemble players, and professional hornists who want a Conn professional double horn with a Geyer-wrap design concept. Its yellow brass construction and small-throat bell place it in a more centered and articulate tonal direction than players may associate with larger Kruspe-wrap nickel-silver horns, making it worth considering for orchestral, wind ensemble, chamber, and teaching use where clarity, security, and projection all matter.
Common Questions About the C.G. Conn 10DY
How does the 10DY fit within Conn's CONNstellation horn family?
The 10DY is a professional CONNstellation double horn with a Geyer-wrap layout, .468 inch bore, and yellow brass small-throat bell. It gives players a Conn professional option with a different design concept from Conn's well-known Kruspe-wrap 8D.
What does the Geyer-wrap design offer a horn player?
Geyer-wrap double horns are often chosen by players who value an efficient, centered response and clear articulation. The design can appeal to players who want a direct feel while retaining the range and flexibility of a full F/Bb double horn.
How does the 10DY differ from the Conn 8D?
The 10DY uses a Geyer wrap and yellow brass small-throat Schmidt-style bell, while the Conn 8D is associated with a Kruspe wrap and all nickel-silver construction. The choice between them is a matter of tonal concept, response preference, and playing application.
We are proud to be an authorized C.G. Conn dealer
Pairs well with
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99

C.G. Conn 10DY CONNstellation Professional Double Horn in Lacquer
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders valued over $99 ship via FedEx 2-Day within the U.S. and via DHL internationally. A physical address (no P.O. Boxes) and signature are required. Smaller accessories ship via USPS (2–5 day service) and do not require a signature if valued under $99. Please see our FAQ for additional details.
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Return Policy
We offer an unconditional 30-day return policy to ensure you’re completely satisfied. If you’re unhappy for any reason, return the item for a full refund or full exchange credit (reeds and other consumables are non-returnable once opened). Every instrument we sell is guaranteed to be free of mechanical defects—if an issue arises, contact us and we’ll either reimburse a local repair or provide a prepaid return label for repair, exchange, or refund. If you simply change your mind, you may still return the item for a full refund, but return shipping costs are the customer’s responsibility unless free returns were purchased through Redo at checkout. Please see our FAQ for additional details.
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Shop Warranty:
Brand new items are covered by the full manufacturer’s warranty unless otherwise noted (see the individual maker for details). Open box/refurbished, used, and vintage items include a two-year warranty serviced by our in-house repair shop, and we guarantee every instrument will be free of mechanical defects. Warranty coverage does not include damage from accident, misuse, negligence, improper operation, unauthorized alterations or removed serial numbers, normal wear and routine maintenance, environmental damage (including perspiration, corrosion, or extreme temperature and humidity), lacquer or plating wear, or consumable parts such as springs, pads, and felts. Please see our FAQ for additional details.
