Yamaha YSL-448G Intermediate F-Attachment Trombone

The step-up trombone your director will actually recommend — set up, tested, and ready to play the day it arrives.

You've been playing for a few years, and you've outgrown your first trombone. The Yamaha YSL-448G is an intermediate-level trombone that has a feature set that'll take your playing to the next level. Its large bore (0.547 inches) produces a focused sound that's crucial for producing a symphonic-quality sound. Another terrific upgrade is the F attachment with a traditional wrap design. The F attachment serves two purposes: it helps in facilitating an expanded range of lower tones and a host of alternate slide positions — nothing beats totally avoiding 6th and 7th positions during warmups and difficult passages. Finally, you also get a 2-piece gold brass bell for show-stealing texture and harmonic content.

Why families buy this trombone from AAA instead of anywhere else!

• ✅ Arrives professionally adjusted and play-tested — not a box from a warehouse
• ✅ Backed by 45+ years serving Fairfield County band & orchestra programs
• ✅ Free setup checks and adjustments for the life of the instrument at any of our 3 CT locations
• ✅ Mouthpiece and slide cream included, ready to play out of the case
• ✅ Trade-up credit toward a professional trombone when your student is ready for the next step

Not sure if buying is the right move yet? Most families start with a rental — it's the lower-risk way to find out if this is the right instrument before committing. See rental options →

Questions about fit, F-attachment trombones, or financing? Call us at 475-208-2100 — we'll help you get the right trombone the first time.

• Key of Bb with F attachment
• .547" bore
• 8-1/2" gold brass bell
• Chrome-plated nickel silver inner slide
• Yellow brass outer slide
• Semi-open wrap
• Slide lock
• Lacquer finish
• Mouthpiece and slide cream