Detail 01
.643 inch cup diameter
On the narrow side. Less lip vibrates inside the cup, which helps high notes but caps how much low end you can move.
Product detailSKU #1275776904214
SchilkeStandard Series Trumpet Mouthpiece Group I in Gold 10B4 Gold
Independent shopping perspective
The Korena take
Schilke's 10B4 trumpet mouthpiece in gold plate: a narrow .643-inch cup with a medium-small funnel B cup, for players who want upper-register support and still keep body in the sound.
Strong match
Who this is for
- Lead and pep-band work where the book sits high
- Players whose endurance fades on deeper cups
- Doublers wanting one piece for section and high parts
Consider the trade-offs
When to look elsewhere
- Orchestral players needing a deep cup and broad low register
- Beginners — the 13 size is the developing-player choice
- Screech specialists; the A cups go shallower and tighter
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
B cup, medium-small funnel
Shallower than a C, deeper than an A. Keeps warmth in the tone while making the top of the staff less work.
Detail 03
26 throat
Throat gauge runs backward — 26 is a slightly larger opening than 27, so this blows freer than the tight a-backbore models.
Detail 04
Shared rim sizes across the series
Cup depths run A shallow through D deep at matching diameters, so you can change depth later without relearning the rim.
Detail 05
Gold finish
Same rim shape as the silver version. Feels slicker on the lips, and it is the usual pick if silver plating irritates your skin.
Final check
Know before you order
- 01Mouthpiece only — no pouch, case, or brush included
- 02Trumpet shank; it will not seat in a cornet or flugelhorn receiver
- 03Give it two weeks — range and endurance shift while your lip adjusts
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is this a lead mouthpiece?
Not a dedicated one. The B cup is medium-small rather than shallow, so it supports the upper register while keeping fuller tone. The 10A4a is the shallower, tighter-backbore lead option at the same rim size.
02What is the difference between gold and silver plating?
Rim, cup, and backbore are identical. Gold feels slightly slicker under the lips and is the common choice for players whose skin reacts to silver.
03Will this fit my trumpet?
Yes, if the horn takes a standard trumpet mouthpiece receiver, which nearly all B-flat and C trumpets do.
04How does the 10B4 compare to the 10A4?
Same .647-ish rim family. The A4 has a shallow cup and 27 throat for high work; the B4's deeper funnel cup gives more tone and a freer 26 throat.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Gold
32 detailsOther
- 9
- 16.33mm, .643 inch cup diameter; 26 throat. Standard characteristics allow for a full penetrating tone quality.
- 11
- 16.53mm, .653 inch cup diameter; 26 throat. A superior mouthpiece with standard characteristics for a free-blowing mouthpiece.
- 12
- 16.69mm, .657 inch cup diameter; 26 throat. A traditional medium size mouthpiece that includes a number 3 standard rim and c-backbore, which allows the player a full spectrum of sound.
- 13
- 16.89mm, .665 inch cup diameter; 26 throat. Ideal choice for a student or developing player with standard number 3 rim contour. The rounder rim provides increased flexibility and quick response. The C cup offers volume for tone.
- 14
- 17.02mm, .670 inch cup diameter; 26 throat. With a standard rim, cup and backbore, this model is an excellent choice for all-around playing.
- 13b
- 16.77mm, .660 inch cup diameter; 26 throat. This mouthpiece has a B cup that is slightly deeper than the 13A4 and also offers a narrower round rim.
- 14a4a
- 17.09mm, .673 inch cup diameter; 27 throat. A very popular mouthpiece, the 14A4a offers a shallow A cup, semi-flat number 4 rim and tight a-backbore, which allows a player a strong upper register without sacrificing tonal production.
- 11ax
- 16.51mm, .650 inch cup diameter; 27 throat. This model was developed for the Schilke piccolo trumpets. The x-backbore improves the ease of playing and opens up the sound on a piccolo trumpet.
- 6a4a
- 15.99mm, .630 inch cup diameter; 27 throat. Shallow A cup with cushion number 4 rim for extreme high register work.
- 11a
- 16.51mm, .650 inch cup diameter; 26 throat. This rim size and contour is similar to the model 11 mouthpiece, but with a shallower A cup.
- 14a4
- 17.09mm, .673 inch cup diameter; 27 throat. Same as the 14A4a, but with a standard c-backbore that offers a more open feel.
- 13a4
- 16.76mm, .660 inch cup diameter; 27 throat. Same as the 13A4a, but with a standard c-backbore which allows a free-blowing feel.
- 12a4
- 16.71mm, .658 inch cup diameter; 27 throat. This mouthpiece is the same as a 12A4a, but with a standard c-backbore.
- 13c4
- 16.89mm, .665 inch cup diameter; 26 throat. The somewhat sharp inner-edge combined with a funnel-shaped C cup offers a clear tone. The number 4 semi-flat rim adds increased endurance.
- 14c2
- 17.02mm, .670 inch cup diameter; 26 throat. This C cup and number 2 semi-rounded rim produces a rather large tone and good center.
- 10a4
- 16.43mm, .647 inch cup diameter; 27 throat. Same as the 10A4a but with a standard c-backbore, which offers less resistance.
- 11e
- 16.58mm, .653 inch cup diameter; 26 throat. The large funnel-shaped cup encourages a big round tone, ideal for cornet.
- 10a4a
- 16.43mm, .647 inch cup diameter; 27 throat. The combination of the shallow A cup, semi-flat number 4 rim and tight a-backore assists with upper register work.
- 12a4a
- 16.71mm, .658 inch cup diameter; 27 throat. Similar to the 12B4, but with a shallow A cup and tight a-backbore, which adds both endurance and range.
- 7b4
- 16.08mm, .633 inch cup diameter; 26 throat. Excellent for the player with thin lips. Number 4 rim provides good endurance with a brilliant tone.
- 11c2
- 16.51mm, .650 inch cup diameter; 26 throat. Similar to the model 11 featuring a slightly rounded number 2 rim contour.
- 14b
- 17.02mm, .670 inch cup diameter; 26 throat. Similar to the model 14, but with a B cup that is medium-small size.
- 12b4
- 16.71mm, .658 inch cup diameter; 26 throat. This medium-small conical B cup provides a full tone and the number 4 semi-flat rim allows for more endurance.
- 8e2
- 16.15mm, .636 inch cup diameter; 26 throat. The deep funnel-shaped cup provides a smooth tone and is very flexible in all registers. Recommended for cornet players
- 13d4
- 16.89mm, .665 inch cup diameter; 27 throat. Best option for a player looking for a thick, rich, weighted sound. Medium-large D cup offers a tone that is colorful with depth. The number 4 semi-flat rim affords comfort with a sharper bite for superior articulation clarity. The cup diameter is ideal for all players from student to professional.
- 10b4
- 16.43mm, .643 inch cup diameter; 26 throat.A medium-small funnel-shaped B cup offers both a quality sound and support in the register.
- 13a4a
- 16.76mm, .660 inch cup diameter; 27 throat. The shallow A cup, semi-flat number 4 rim and tight a-backbore creates an ideal lead mouthpiece.
- 11d4
- 16.58mm, .653 inch cup diameter; 26 throat. Slightly deeper than the model 11 with a number 4 semi-flat rim, which provides a definite cushion feel for endurance.
- 5a4
- 15.84mm, .624 inch cup diameter; 26 throat. Small cup diameter which aids upper register. Popular for use as a piccolo trumpet mouthpiece.
- 14a4x
- 17.09mm, .673 inch cup diameter; 27 throat. Based on the popular 14A4a, this mouthpiece creates a very open blowing feel with the large x-backbore. This backbore improves the ease of playing and opens up the sound of a piccolo trumpet.
- 9c4
- 16.36mm, .644 in cup diameter; 26 throat. Like the 9 mouthpiece, however the 4 semi-flat rim provides excellent endurance.
- 8a4
- 16.25mm, .640 inch cup diameter; 26 throat. The slightly funnel-shape cup at the entrance to the throat provides a good tone and the number 4 semi-flat rim gives superior endurance.
