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The William S. Haynes AF780SE-BO C# Amadeus is a top tier step-up, solid silver concert flute built for advancing players who want the core, projection, and tonal complexity associated with Haynes design standards. With solid silver headjoint, body, and footjoint, a Haynes A-442 scale, and professional features like a Split E mechanism, offset G, and C# trill key, this model targets clean response, stable intonation, and reliable facility across repertoire and ensemble settings.
Haynes AF780SE-BO C# Flute Specifications
- Model: AF780SE-BO C# (Amadeus) concert flute in C
- Material: Solid silver headjoint, body, and footjoint
- Tubing: 0.016 inch
- Scale: Haynes A-442 scale
- SE: Split E mechanism;
- B: B footjoint
- O: Offset G
- C# trill key
- Finish: Solid silver construction
- Springs: Stainless steel
- Toneholes: Drawn toneholes
- Keywork details: French pointed arms; open cups; felt pads
- Headjoint style: Classic style headjoint
- Case: French style case and cover
- Serial number: B2406974
Condition & Setup
Lightly used flute in wonderful condition. This flute has been professionally serviced, set up, and play-tested to ensure proper mechanical regulation, sealing, and response.
Who the AF780SE-BO C# Flute Is For
The Haynes AF780SE-BO C# Amadeus is a solid-silver, step-up C flute designed for advancing intermediate flutists who need greater tonal depth, projection, and intonation stability than a student model typically provides. Its Haynes A-442 scale supports consistent pitch in modern ensembles, while the classic style headjoint and solid-silver build deliver a clear, flexible sound that can be shaped for solo, chamber, wind ensemble, and orchestral training contexts.
This model is especially well-suited to serious students moving into upper-level repertoire and auditions, as well as doublers and returning players who want professional features without jumping to a fully custom specification. The offset G supports comfortable left-hand position, the Split E mechanism improves response and clarity in the upper register, and the C# trill key expands facility for common technical passages.
Common Questions About The Haynes AF780SE-BO C#
What does “SE-BO” mean on the AF780SE-BO C#?
SE indicates a Split E mechanism, which improves response and stability for high E and related upper-register notes. BO indicates a B footjoint and an offset G key configuration.
Is the Haynes AF780SE-BO C# appropriate for intermediate to pre-professional players?
Yes. It is a top tier step-up flute with solid silver head, body, and footjoint, a Haynes A-442 scale, and advanced mechanisms (Split E and C# trill) that support higher-level technical and intonation demands.
What is the benefit of a solid silver body and footjoint on this model?
Solid silver construction typically supports a stronger core, wider dynamic range, and more tonal color than plated instruments, which can help an advancing player project and shape phrasing more effectively.
We are proud to be an authorized Haynes 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
William S. Haynes AF780SE-BO C# 'Amadeus' Silver Flute
Haynes AF780SE-BO C# Flute Overview
The William S. Haynes AF780SE-BO C# Amadeus is a top tier step-up, solid silver concert flute built for advancing players who want the core, projection, and tonal complexity associated with Haynes design standards. With solid silver headjoint, body, and footjoint, a Haynes A-442 scale, and professional features like a Split E mechanism, offset G, and C# trill key, this model targets clean response, stable intonation, and reliable facility across repertoire and ensemble settings.
Haynes AF780SE-BO C# Flute Specifications
- Model: AF780SE-BO C# (Amadeus) concert flute in C
- Material: Solid silver headjoint, body, and footjoint
- Tubing: 0.016 inch
- Scale: Haynes A-442 scale
- SE: Split E mechanism;
- B: B footjoint
- O: Offset G
- C# trill key
- Finish: Solid silver construction
- Springs: Stainless steel
- Toneholes: Drawn toneholes
- Keywork details: French pointed arms; open cups; felt pads
- Headjoint style: Classic style headjoint
- Case: French style case and cover
- Serial number: B2406974
Condition & Setup
Lightly used flute in wonderful condition. This flute has been professionally serviced, set up, and play-tested to ensure proper mechanical regulation, sealing, and response.
Who the AF780SE-BO C# Flute Is For
The Haynes AF780SE-BO C# Amadeus is a solid-silver, step-up C flute designed for advancing intermediate flutists who need greater tonal depth, projection, and intonation stability than a student model typically provides. Its Haynes A-442 scale supports consistent pitch in modern ensembles, while the classic style headjoint and solid-silver build deliver a clear, flexible sound that can be shaped for solo, chamber, wind ensemble, and orchestral training contexts.
This model is especially well-suited to serious students moving into upper-level repertoire and auditions, as well as doublers and returning players who want professional features without jumping to a fully custom specification. The offset G supports comfortable left-hand position, the Split E mechanism improves response and clarity in the upper register, and the C# trill key expands facility for common technical passages.
Common Questions About The Haynes AF780SE-BO C#
What does “SE-BO” mean on the AF780SE-BO C#?
SE indicates a Split E mechanism, which improves response and stability for high E and related upper-register notes. BO indicates a B footjoint and an offset G key configuration.
Is the Haynes AF780SE-BO C# appropriate for intermediate to pre-professional players?
Yes. It is a top tier step-up flute with solid silver head, body, and footjoint, a Haynes A-442 scale, and advanced mechanisms (Split E and C# trill) that support higher-level technical and intonation demands.
What is the benefit of a solid silver body and footjoint on this model?
Solid silver construction typically supports a stronger core, wider dynamic range, and more tonal color than plated instruments, which can help an advancing player project and shape phrasing more effectively.
We are proud to be an authorized Haynes 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

William S. Haynes AF780SE-BO C# 'Amadeus' Silver Flute
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, 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.

