Detail 01
17mm cup diameter
Larger than a standard 3C. More lip vibrates, so the sound thickens, but it takes more air to drive.

Independent shopping perspective
Silver-plated heavy-blank trumpet mouthpiece, 17mm cup with a slightly wider rim. For players who want more stability and a steadier upper register.

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
Larger than a standard 3C. More lip vibrates, so the sound thickens, but it takes more air to drive.
Detail 02
Spreads pressure across more lip surface. Adds comfort and endurance at the cost of some flexibility on fast slurs.
Detail 03
Tighter than the 1 and 1C. Adds resistance you can lean into, which helps upper-register control.
Detail 04
Extra mass in the rim and cup damps stray vibration. Slots feel firmer and the core sound gets more compact.
Detail 05
Straight bore rather than a V taper. Centers pitch and keeps the tone even instead of brightening at the top.
Detail 06
Firmer and slicker on the lip than gold. Grips less, which some players prefer for fast register moves.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
The 1.5C is larger — 17mm cup versus 16.75mm — with a slightly wider rim and a 3.80mm throat. Fuller sound, more comfort, more air required.
Added mass in the rim and cup absorbs vibration that would otherwise dissipate. The result is firmer slotting and a more compact, focused core to the sound.
The 3.80mm throat and wider rim give more resistance and lip support, which many players find steadies the upper register. It does not add range on its own.
Feel, mostly. Silver is firmer and slicker; gold is softer and warmer. Choose silver unless your skin reacts to it.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.