Detail 01
.643 inch cup diameter
On the small side of Schilke's range. Less lip vibrating means less effort per note and more staying power.
Product detailSKU #1275776904610
SchilkeStandard Series Trumpet Mouthpiece Group I 10B4 Silver
Independent shopping perspective
The Korena take
Schilke 10B4, a .643-inch trumpet mouthpiece with a funnel-shaped B cup and semi-flat rim. For players wanting a smaller diameter without a thin sound.
Strong match
Who this is for
- Players who find .660-plus rims tiring over a full set
- Trumpeters wanting register support without a shallow lead cup
- Doubling on a smaller rim for endurance
Consider the trade-offs
When to look elsewhere
- Players with wide lips who need a larger diameter
- Anyone chasing screaming lead range — the cup isn't shallow enough
- Players happy on a standard round rim contour
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
Funnel-shaped B cup
Cone rather than bowl. Softens the attack and rounds the tone compared with a C cup of the same size.
Detail 03
Medium-small cup volume
Sits between a lead piece and an all-around one. Supports the upper register without hollowing out the middle.
Detail 04
26 throat
Schilke's standard bore. More open than the 27 throat on their A-cup pieces, so it blows freer with less back-pressure.
Detail 05
Number 4 semi-flat rim
Flatter, wider bearing surface. Spreads mouthpiece pressure over more lip, which is what buys you endurance.
Detail 06
Silver finish
Slicker and firmer under the lip than gold. Some players find it grippier for slurs; a few react to it on skin.
Final check
Know before you order
- 01Mouthpiece only — no pouch or cleaning brush
- 02Dropping cup diameter changes your low register first, not your high
- 03Compare against your current rim size before switching
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What does the B in 10B4 mean?
Cup shape. The B is a funnel-shaped cup, deeper toward the throat than an A cup and rounder in tone than a C.
02Is this good for a beginner?
The small .643 diameter is workable but tight. A developing player usually does better on the 13, which has a rounder rim and more cup volume.
03How is the 10B4 different from the 10A4?
The 10A4 is .647 inch with a shallow A cup and a 27 throat. The 10B4 has a deeper funnel B cup and a more open 26 throat.
04Will the rim feel flat?
The number 4 rim is semi-flat — a wider, flatter contact area than the standard number 3. It trades some flexibility for endurance.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Silver
23 detailsOther
- 9
- 16.33 mm, .643 inch cup diameter; 26 throat. Standard characteristics allow for a full penetrating tone quality.
- 11
- 16.53 mm, .653 inch cup diameter; 26 throat. A superior mouthpiece with standard characteristics for a free-blowing mouthpiece.
- 12
- 16.69 mm, .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
- 16.8 mm9mm, .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.
- 13b
- 16.77 mm, .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.
- 11ax
- 16.51 mm, .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
- 15.99 mm, .630 inch cup diameter; 27 throat. Shallow A cup with cushion number 4 rim for extreme high register work.
- 11a
- 16.51 mm, .650 inch cup diameter; 26 throat. This rim size and contour is similar to the model 11 mouthpiece, but with a shallower A cup.
- 13a4
- 16.76 mm, .660 inch cup diameter; 27 throat. Same as the 13A4a, but with a standard c-backbore which allows a free-blowing feel.
- 12a4
- 16.71 mm, .658 inch cup diameter; 27 throat. This mouthpiece is the same as a 12A4a, but with a standard c-backbore.
- 12b4
- 16.71 mm, .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.
- 10a4
- 16.43 mm, .647 inch cup diameter; 27 throat. Same as the 10A4a but with a standard c-backbore, which offers less resistance.
- 11e
- 16.58 mm, .653 inch cup diameter; 26 throat. The large funnel-shaped cup encourages a big round tone, ideal for cornet.
- 10a4a
- 16.43 mm, .647 inch cup diameter; 27 throat. The combination of the shallow A cup, semi-flat number 4 rim and tight a-backbore assists with upper register work.
- 10b4
- 16.43 mm, .643 inch cup diameter; 26 throat. A medium-small funnel-shaped B cup offers both a quality sound and support in the register.
- 13a4a
- 16.76 mm, .660 inch cup diameter; 27 throat. The shallow A cup, semi-flat number 4 rim and tight a-backbore creates an ideal lead mouthpiece.
- 8 Mma4
- 16.25 mm, .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.
- 12a4a
- 16.71 mm, .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.
- 11d4
- 16.58 mm, .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.
- 7b4
- 16.08 mm, .633 inch cup diameter; 26 throat. Excellent for the player with thin lips. Number 4 rim provides good endurance with a brilliant tone.
- 8 Mme2
- 16.15 mm, .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
- 9c4
- 16.36 mm, .644 in cup diameter; 26 throat. Like the 9 mouthpiece, however the 4 semi-flat rim provides excellent endurance.
- 11c2
- 16.51 mm, .650 inch cup diameter; 26 throat. Similar to the model 11 featuring a slightly rounded number 2 rim contour.
