This Bach 15C small-shank trombone mouthpiece is genuine open-box, brand new in the factory box, and never played. It is one of the smallest mouthpiece sizes Bach makes, with a 25.20 mm rim diameter and medium cup. The compact size produces a focused, bright sound and makes the upper register more accessible for younger players or those seeking a lighter, more brilliant tone.
New Bach 15C models retail for about $124 MSRP with sale prices often around $85. This open-box example offers new condition at a lower price point. A true open-box find—factory fresh, never played, priced below new retail.
In stock for immediate delivery.
Bach Small Shank Mouthpiece Guide
Q: What does “small shank” mean on a trombone mouthpiece?
A: Small shank mouthpieces fit student and jazz tenor trombones with bore sizes around .500–.525. They won’t fit large-bore symphonic horns.
Q: Which Bach mouthpiece size is most common for beginners?
A: The 12C is the most widely recommended starting size. It’s comfortable for younger players and helps produce a full sound without too much effort.
Q: How does the 15C compare to other Bach mouthpieces?
A: The 15C is smaller than the 12C, 11C, and 7C. It produces a brighter, more focused sound and makes high notes easier, but offers less fullness.
Q: What’s the next size up from the 12C?
A: The 6 1/2AL (small shank) is often the first upgrade. It’s considerably larger and gives advancing students more room and depth of sound.
Q: Is there a standard step-up path?
A: Yes. Many students start on a 12C, then move to a 6 1/2AL once their embouchure develops. From there, players may explore the 7C or other specialized sizes depending on style (jazz, symphonic, etc.).
