This Bach 15C small-shank trombone mouthpiece was a genuine open-box example in like-new condition with original factory packaging.
The Bach 15C is one of the smaller mouthpiece sizes in the Bach trombone lineup, featuring a 25.20 mm rim diameter and medium cup design. Its compact dimensions help produce a focused, brighter tone and can make upper-register playing feel more accessible for younger students or players seeking a lighter response.
Small-shank mouthpieces like the 15C are commonly paired with student and jazz tenor trombones in the .500–.525 bore range. Players often choose this size when seeking easier upper-register response, lighter articulation, or a more compact feel than larger Bach mouthpieces such as the 6 1/2AL.
At the time of listing, new Bach 15C mouthpieces typically retailed near MSRP pricing around $124, with common street pricing closer to the $80–90 range depending on dealer inventory and availability.
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 will not fit most large-bore symphonic tenor trombones.
Q: Which Bach mouthpiece size is most common for beginners?
A: The Bach 12C is one of the most commonly recommended starting mouthpieces for younger students because it balances comfort and response well.
Q: How does the 15C compare to other Bach mouthpieces?
A: The 15C is smaller than the Bach 12C, 11C, and 7C. It tends to produce a brighter, more focused tone with easier upper-register response, though with somewhat less breadth of sound.
Q: What’s the next size up from the 12C?
A: Many advancing students eventually move to a Bach 6 1/2AL small shank mouthpiece, which offers a noticeably larger feel and fuller sound.
Q: Is there a standard step-up path for students?
A: Often yes. Many players begin on a 12C and later transition to a 6 1/2AL or other sizes depending on playing style, endurance, and tonal goals.
🔧 Availability & Archive Status
This Bach 15C mouthpiece has been sold and now remains as part of the Brass Exchange archive for educational and reference purposes.
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