Detail 01
.657 inch (16.69 mm) cup diameter
Mid-range in Schilke's standard group. Enough rim for a full tone without the fatigue of a wide diameter.

Independent shopping perspective
Schilke's Standard 12 in gold: a .657 medium cup with a number 3 rim, C backbore and 26 throat. A general-purpose everyday mouthpiece.


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
Mid-range in Schilke's standard group. Enough rim for a full tone without the fatigue of a wide diameter.
Detail 02
The standard bore in this line. Balanced resistance, without the free blow of a 24 or the tightness of a 27.
Detail 03
Schilke's standard contour: rounded enough for flexibility, defined enough to feel where you sit on it.
Detail 04
The all-purpose taper. Keeps the sound open and even instead of pushing bright like an A or open like an X.
Detail 05
A surface choice only. The cup diameter, rim number, throat and backbore are the same as any other 12.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
It's .657 inch across, a medium size. The 13 and 14 are wider at .665 and .670, while the 11 and 9 are narrower at .653 and .643.
The dimensions are identical either way. Rim, cup, throat and backbore don't change, so it comes down to which finish you prefer.
It works fine, with a standard rim, cup and backbore and nothing extreme. Schilke points the 13 at students specifically, with a rounder rim and quicker response.
Not by design. The 12 is a medium all-around piece. The shallow A cup models, like the 14A4a, are the ones built for upper-register work.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.