Detail 01
16.4mm cup diameter
Middle of the Wick range. Enough room for a full sound without the endurance cost of the 17mm 2.

Independent shopping perspective
Gold-finish cornet mouthpiece with a 16.4mm cup, 5.55mm rim and open backbore. For brass band cornet players who need endurance on long sets.

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
Middle of the Wick range. Enough room for a full sound without the endurance cost of the 17mm 2.
Detail 02
The widest rim in this series apart from the BW pieces. Spreads pressure over more lip, so you last longer.
Detail 03
On the open side. Air moves freely and the low register fills out, but you have to feed it.
Detail 04
Less resistance than the V-type B models. Bigger, rounder sound; slightly less focus and edge up high.
Detail 05
Feels smoother on the lip than silver and is the usual choice if silver plating irritates your skin.
Detail 06
Tone and pitch center match the standard 4. Only the rim contact changes, so the switch is low risk.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Cup, throat and backbore are identical. The 4W has a 5.55mm rim instead of 5.27mm, so lip pressure spreads wider and you tire more slowly. Tone stays the same.
No. It's a cornet mouthpiece with a cornet shank. Trumpet receivers take a different taper.
Not tonally. Gold feels slicker on the lip and avoids the skin reactions some players get from silver plating.
It's a mid-size cup, not extreme. A student moving off a stock mouthpiece can handle it, but expect to build air support for the open throat.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.