Yamaha YFH-631G Professional Flugelhorn – Gold Brass Bell, Clear Lacquer (Bb)

The Yamaha YFH-631G is a proven professional flugelhorn that delivers the warm, mellow voice players want with the reliable intonation and ergonomics Yamaha is known for. A two-piece gold-brass 6" bell adds extra copper content for a darker, richer core, while the medium 0.433" (11 mm) bore keeps response easy and lyrical for ballads, brass band features, pit work, or jazz lead lines. The factory-fit third-valve slide trigger lets you lock in intonation on low D/C♯ and other “tendencies” without breaking your phrasing.

Under the hood, Monel pistons and hand-lapped pistons/slides provide smooth, airtight action built for years of service. The clear lacquer finish preserves the natural gold-brass warmth and keeps maintenance simple. Supplied with the Yamaha FH-11F4 mouthpiece—a comfortable, medium-diameter option with a unique “U” cup that balances clear attack and endurance—you can get straight to the sound this horn is famous for.

Why players choose the 631G

• Gold-brass bell = darker, rounder tone with broad color for jazz and flugel features

• In-tune performance thanks to the 3rd-slide trigger and Yamaha’s consistent build

• Smooth, durable action from Monel valves and precision-lapped slides

• Comfortable blow (M/0.433" bore) that speaks easily at soft dynamics yet opens up when pushed

• Road-ready: includes case and mouthpiece; medium weight balances resonance and stability

Key features & specs

• Key: Bb

• Bell: 2-piece gold brass, 151.8 mm / 6"

• Bore: 11 mm / 0.433" (Medium)

• Finish: Clear lacquer (this listing is GOLD, not silver-plated)

• Valves: Monel pistons

• Intonation aid: 3rd-valve slide trigger

• Mouthpiece: Yamaha FH-11F4 included

• Case: Included

• Weight: Medium

Who it’s for

• Jazz & commercial players needing a classic, singing flugel timbre that sits beautifully over a rhythm section

• Doublers & educators who want Yamaha reliability and easy slotting across the register

• Brass band & pit musicians requiring secure intonation and consistent response show after show

What’s in the box

• Yamaha YFH-631G flugelhorn (gold-brass bell, clear lacquer)

• FH-11F4 mouthpiece

• Hard case

• Care items (varies by region/batch)