Detail 01
17.25mm cup diameter
Large for trumpet. Bigger, more open sound and more volume, with less margin for error above the staff.

Independent shopping perspective
Large silver trumpet mouthpiece, 17.25mm cup and 5mm rim. For symphonic and concert players who want size without the model 1's difficulty.

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
Large for trumpet. Bigger, more open sound and more volume, with less margin for error above the staff.
Detail 02
The widest throat in this trumpet line. Takes noticeably more air than the 3.70mm models and blows freer.
Detail 03
Middle of the range. Enough contact for endurance without the cushion feel of the 5X's 6mm rim.
Detail 04
Keeps the sound centered and even. The V-type backbores in this line trade that for brightness and cutting power.
Detail 05
Same 17.25mm cup and 5mm rim, but the C plays easier, responds more flexibly and focuses better up high.
Detail 06
Firm, slightly grippy feel under the lip. Wears at the rim contact point over years and can be replated.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
The 3C is smaller at 16.75mm with a 3.70mm throat — freer blowing and easier to control. The 1C is bigger and darker, with more volume available.
It's the wrong end of the line for that. The 5E and 3E use V-type backbores for a bright, crisp screamer sound; the 4X and 5X are the jazz cushion-rim options.
Only if you can fill it. The 3.90mm throat needs real air support. Without it, you lose range and endurance before you gain tone.
It marks a variant of the base model. The 1C keeps the model 1's dimensions but plays more easily and with more flexibility.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.