For a flugelhorn, choose a mouthpiece specifically described for that instrument, such as the Yamaha 14F4, Bach 5C, or Denis Wick Classic 4BFL. The Bob Reeves products listed here are identified as trumpet mouthpieces, not flugelhorn mouthpieces, so their fit for a particular flugelhorn should not be assumed. The Reeves 40ES and 43ES may interest players comparing Bob Reeves designs, while the other picks offer clearly labeled flugelhorn options.
| Product | Best for | Key detail |
|---|---|---|
| Bob Reeves 43ES | Players seeking a listed Reeves trumpet model | Size #43/ES |
| Bob Reeves 40ES | Players comparing shallow-cup designs | Extra-shallow cup |
| Yamaha 14F4 | Studio and demanding performance use | V-shaped cup |
| Bach 5C | Players who prefer a rounded rim | Lively, rich tone |
| Denis Wick Classic 4BFL | Players seeking a warm, free-blowing feel | B cup and open backbore |
Bob Reeves 43ES Trumpet Mouthpiece

The Bob Reeves 43ES is listed as a trumpet mouthpiece, with an available size of #43/ES. The product details do not specify a flugelhorn designation, cup measurements, or instrument fit. That distinction matters because a mouthpiece intended for trumpet should not be treated as a flugelhorn option without confirming its shank and fit with the instrument maker or a qualified retailer.
Best for: Players specifically researching the Reeves 43ES or comparing the brand’s trumpet mouthpieces. It is included because it is a Bob Reeves model from the supplied list, not because its flugelhorn compatibility is established. Limitation: Confirm the intended instrument and fit before purchase.
Bob Reeves 40ES Trumpet Mouthpiece

The 40ES has an extra-shallow, bowl-shaped cup with a listed depth of 0.154 inches. Its 40 rim is described as functionally similar to several other trumpet rim sizes, including Bach Mount Vernon 10 1/2C, Bach 11 3/4 C and Schilke 6. The rim is described as semi-flat with a medium-sharp bite.
Best for: Trumpet players comparing a shallow-cup Reeves model and its listed rim characteristics. Limitation: This is identified as a trumpet mouthpiece, so it is not a confirmed flugelhorn fit. Choose it for flugelhorn use only after verifying compatibility rather than relying on the model name or rim comparison.
Yamaha 14F4 Flugelhorn Mouthpiece

The Yamaha 14F4 is explicitly identified as a flugelhorn mouthpiece. Its listed specifications include a 16.76 mm inner rim diameter, a V-shaped cup, a semi-flat rim, and a standard backbore. The product information describes it as a popular choice for demanding professional studio applications.
Best for: Flugelhorn players who want a clearly designated instrument-specific option and are considering a V-shaped cup. Its published measurements make it easier to compare with other mouthpieces. Limitation: The listing calls the cup standard but does not provide a cup-depth measurement, so players seeking a particular depth should confirm that detail.
Bach 5C Flugelhorn Mouthpiece

The Bach 5C is described as a flugelhorn mouthpiece for players with a strong embouchure who prefer a less sharp edge. Its medium-wide rim is rounded toward both the inside and outside and is fairly flat. The listed tonal description is lively and rich.
Best for: Players who value a rounded, medium-wide rim and want a flugelhorn-specific model. It offers a useful contrast to the semi-flat rim details of the Yamaha 14F4. Limitation: The recommendation is specifically framed for players with a strong embouchure, so it may not suit every player’s preferred rim feel or playing approach.
Denis Wick Classic 4BFL Flugelhorn Mouthpiece

The Denis Wick Classic 5884-4BFL is described as having a B cup, an open backbore, and a large shank. Its product information emphasizes a warm, rich tone and a free-blowing feel. The listing identifies brass band and jazz players as potential users and also presents it as an option for developing and experienced musicians.
Best for: Players looking for a flugelhorn mouthpiece with a B cup and open backbore, especially when warmth and airflow are priorities. Limitation: The listing specifies a large-shank fit. Confirm that this matches the instrument before ordering.
Buying Guide: How To Choose A Flugelhorn Mouthpiece
Is a Bob Reeves trumpet mouthpiece a flugelhorn mouthpiece?
Not based on the supplied product information. The Reeves 40ES and 43ES are labeled trumpet mouthpieces. A shared brand, rim size, or appearance does not establish flugelhorn compatibility. Verify the required shank and intended instrument before choosing either Reeves model for a flugelhorn.
Which design details should you compare?
- Cup shape and depth: The Yamaha 14F4 has a V-shaped cup, while the Denis Wick has a B cup. The Reeves 40ES has an extra-shallow bowl cup, but it is listed for trumpet.
- Rim feel: The Yamaha has a semi-flat rim; the Bach 5C has a medium-wide, rounded rim. Choose based on the feel and response you want, not brand name alone.
- Backbore and shank: Yamaha lists a standard backbore. Denis Wick lists an open backbore and large shank. Check your instrument’s requirements.
What should you confirm before ordering?
Check that the product is designed for flugelhorn, then verify shank size and fit with the instrument’s specifications. Compare listed measurements where available, and consider your preferred rim shape and cup design. Product descriptions do not provide every measurement for every model, so contact the seller or manufacturer if an important specification is missing.
Frequently Asked Questions
Is the Bob Reeves 40ES listed as a flugelhorn mouthpiece?
No. The supplied name identifies it as a trumpet mouthpiece. Its compatibility with a particular flugelhorn is not established by the listed details.
Which listed option is specifically described for professional studio use?
The Yamaha 14F4 is described as a popular choice for demanding professional studio applications. It has a V-shaped cup and a 16.76 mm inner rim diameter.
Which option has an open backbore?
The Denis Wick Classic 5884-4BFL is listed with an open backbore and large shank.
Which flugelhorn mouthpiece has a rounded rim?
The Bach 5C is described as having a medium-wide rim rounded toward the inside and outside, with a fairly flat profile.