Detail 01
30mm cup diameter
On the smaller side for tuba. Less lip inside the cup means easier endurance and upper register, less raw air volume.

Independent shopping perspective
A silver-plated 5L tuba mouthpiece with a 30mm cup and deep cup profile. Aimed at F and Eb tuba players who want a compact, focused sound.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
On the smaller side for tuba. Less lip inside the cup means easier endurance and upper register, less raw air volume.
Detail 02
A narrower throat than the larger models. More resistance, which supports the sound and keeps it centered rather than spreading.
Detail 03
The depth keeps the tone from going thin despite the small diameter. Result is compact and focused, not bright.
Detail 04
Fits small-shank receivers only. Check your leadpipe before ordering — most F and Eb tubas take small shank.
Detail 05
Slightly more grip and a marginally firmer feel than gold plate. Some players react to silver on the lips.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It is a small-shank mouthpiece with a 30mm cup, designed around F and Eb tubas. On a large BBb contrabass it will feel undersized.
Both share the 30mm cup and 7.89mm throat. The 5L uses a deeper cup with a matching backbore for a more compact sound.
The smaller cup and narrower throat make it manageable, though the 4L is specifically aimed at younger players wanting projection with less effort.
Silver feels slightly firmer and grippier on the lips. The main practical issue is that a minority of players have a skin reaction to it.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.