Yamaha YSL-646 Medium Bore Tenor Trombone
This Yamaha YSL-646 Medium Bore .525 Tenor Trombone is a professional-level model originally marketed in Japan and parts of Europe. It features a yellow brass bell and a lightweight brass handslide, giving it a vibrant response and a free-blowing feel. The F-attachment uses a standard rotor, and the horn accepts a small shank mouthpiece.
Ideal for advancing students or comeback players seeking more versatility than a large bore (.547), the 646 model is prized for its balanced resistance and flexibility across musical genres. It transitions easily from concert band and wind ensemble to small group jazz or chamber work. Many educators recommend medium bore models like this one for younger players because they are easier to control while still offering a full tone.
This particular instrument is in prime condition with no signs of previous damage or bell trauma. The handslide is fast and well-aligned, and the valve section has excellent compression and responsiveness. A clean case and mouthpiece are included, both also in excellent shape.
A new Yamaha 600 series trombone sells for over $2,200 today. This archived listing represents a tremendous value and reflects the kind of quality medium bore F-attachment trombones that continue to pass through our shop.
What makes the Yamaha YSL-646 a strong choice for students and advancing players?
The YSL-646 provides a more manageable feel than large bore models, thanks to its .525 bore size and lightweight build. It blends ease of play with tonal flexibility, making it a strong step-up horn for younger students, adult learners, or those needing an all-purpose trigger trombone. The small shank receiver also supports a wide range of available mouthpieces.
This Yamaha YSL-646 trombone has been sold and is now part of our historical archive. Looking for something similar? Browse current trombone listings here 🔎
