Detail 01
.690 inch cup diameter
Large by trumpet standards. More lip inside the rim means more tone and more endurance cost.
Product detailSKU #1275776904123
SchilkeStandard Series Trumpet Mouthpiece Group II in Gold 18C3 Gold
Independent shopping perspective
The Korena take
Gold-plated Schilke 18C3 trumpet mouthpiece. Large .690" diameter for players with a developed embouchure who want a rich, brilliant tone with a big-cup feel.
Strong match
Who this is for
- Advancing players moving up from a stock 7C-size piece
- Section trumpet work where tone volume matters more than screaming range
- Players whose lips react to silver plating
Consider the trade-offs
When to look elsewhere
- Beginners still building embouchure strength on a large rim
- Lead players who need a shallow cup for high register
- Anyone wanting a cheap backup piece to leave in a case
What matters in use
The specifications, translated
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 02
High point nearer the center
Makes the 18 feel smaller than .690" suggests, so the jump from a medium piece is less jarring.
Detail 03
C cup
Standard depth. Full sound without the darkness of a D or E cup, and it keeps upper register workable.
Detail 04
Number 3 rim
Standard rounded contour. Good flexibility and quick response, less cushion than a semi-flat 4 rim.
Detail 05
26 throat
Schilke's standard bore. Neither restrictive nor wide open, so blowing resistance stays familiar.
Detail 06
Gold plating
Warmer, slicker feel on the lips than silver, and an option if silver causes a reaction.
Final check
Know before you order
- 01Mouthpiece only. No trumpet, case, or pouch included.
- 02Confirm your rim size first. .690" is a jump from most student pieces.
- 03Gold plating wears with use. Handle by the shank, not the rim.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is the 18C3 too big for a high school player?
It can be. At .690 inches it's a large diameter and rewards a developed embouchure. Players still building strength usually do better on a smaller Group I size.
02What's the difference between the 18 and the 18C3D?
Same .690 inch diameter, but the 18C3D uses a larger D backbore for a broader, darker tone. The 18C3 stays tighter and more brilliant.
03Why choose gold over silver plating?
Gold feels smoother and slightly warmer on the lips, and it's the option for players who react to silver plating. Cup and rim dimensions are identical.
04Will this fit any trumpet?
It's a standard trumpet shank, so it fits standard Bb and C trumpets. It's not a cornet or flugelhorn mouthpiece.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Gold
21 detailsOther
- 15
- 17.12mm, .674 inch cup diameter; 26 throat. An excellent all-around mouthpiece which offers a free blowing, clear sound.
- 16
- 17.20mm, .677 inch cup diameter; 26 throat. This medium-large diameter mouthpiece produces a full, free blowing quality.
- 17
- 17.33mm, .682 inch cup diameter; 26 throat. A compromise of all the medium characteristics, this mouthpiece is an excellent medium to large diameter mouthpiece.
- 18
- 17.52mm, .690 inch cup diameter; 26 throat. The high point being nearer to the center makes this mouthpiece feel smaller than it is. The standard characteristics produce a rich, brilliant tone.
- 19
- 17.65mm, .695 inch cup diameter; 26 throat. The C cup, number 3 rim and standard c-backbore are similar to the model 20 but with a slightly smaller diameter.
- 20
- 17.78 mm, .700 inch cup diameter; 26 throat. This large diameter is for the robust embouchure. Original mouthpiece of choice for Renold O. Schilke.
- 22
- 18.03mm, .710 inch cup diameter; 26 throat. Similar to the model 20 but with a larger inside diameter.
- 24
- 18.29mm, .720 inch cup diameter; 26 throat. Our largest cup diameter offered. This mouthpiece provides a huge volume of sound.
- 15a4
- 17.14mm, .675 inch cup diameter; 27 throat. Same as the 15A4a but with a larger c-backbore for an open feel.
- 16b4
- 17.20mm, .677 inch cup diameter; 26 throat. Same as the model 16C4 except the shallower, medium-small B cup offers more resistance, providing a brighter quality of sound. The 16B4 is an excellent choice for Eb trumpet when a player requires a bigger rim diameter.
- 18c3d
- 17.52mm, .690 inch cup diameter; 26 throat. Similar in dimension to the model 18 but with a larger d-backbore producing a large, teutonic tone.
- 16c4
- 17.20mm, .677 inch cup diameter; 26 throat. Similar to the 16 in dimensions, this mouthpiece offers a number 4 semi-flat rim for a more traditional feel and increased endurance.
- 17d4
- 17.33mm, .682 inch cup diameter; 26 throat. This mouthpiece includes a deeper D cup and number 4 semi-flat rim for improved endurance.
- 15c4
- 17.14mm, .675 inch cup diameter; 26 throat. This mouthpiece is similar to the model 15 but with the number 4 semi-flat rim for increased endurance.
- 17d4d
- 17.33mm, .682 inch cup diameter; 26 throat. A larger blowing mouthpiece than the 17D4 because of the increase d-backbore.
- 16c2
- 17.20mm, .677 inch cup diameter; 26 throat. This model offers the same options as the model 16, but instead offers a number 2 rim for increased flexibility.
- 15a4a
- 17.14mm, .675 inch cup diameter; 27 throat. A larger diameter mouthpiece with a shallow A cup and tight a-backbore for upper register playing. Number 4 semi-flat rim offers comfort in upper register.
- 18b4
- 17.52mm, .690 inch cup diameter; 26 throat. Ideal for a classical player looking for a commercial sound, the medium shallow cup and semi-flat rim provide resistance and comfort for upper register playing. Cup shape offers some sparkle in the sound with enough volume for tone.
- 20d2d
- 17.73mm, .698 inch cup diameter; 26 throat. Similar to the model 20 in diameter but includes a larger D style cup, number 2 semi-round rim and larger d-backbore.
- 17b4
- 17.33mm, .682 inch cup diameter; 26 throat. Well suited for the player looking for a shallower cup in a larger diameter. Medium-small B cup offers more brilliance for projection with number 4 semi-flat rim for comfort.
- 15b
- 17.12mm, .674 inch cup diameter; 26 throat. With the same diameter as the model 15, this mouthpiece includes B style cup which produces a more brilliant sound than the standard model 15 mouthpiece.
