Detail 01
.660 inch cup diameter
Medium rim size. Enough room for the lips to vibrate without the endurance cost of a wide rim.
Product detailSKU #1275776904136
SchilkeStandard Series Trumpet Mouthpiece Group I 13A4a Silver
Independent shopping perspective
The Korena take
A shallow-cup lead trumpet mouthpiece, .660 inch rim with a tight backbore. For players who live in the upper register and need endurance.
Strong match
Who this is for
- Lead and commercial playing where high notes carry the chart
- Long sets where the flatter rim saves your chops
- Players on a .660 rim wanting easier top end
Consider the trade-offs
When to look elsewhere
- Orchestral or legit playing that needs a dark, full sound
- Beginners still building tone on a standard C cup
- Players who want a free-blowing feel — this backbore is tight
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
Shallow A cup
Less cup volume puts the upper register within easier reach and brightens the tone; the low register thins out.
Detail 03
27 throat
Drill numbering runs backwards, so 27 is a narrower hole than 24. More resistance, more focus, less air needed.
Detail 04
Tight a-backbore
Adds back pressure behind the throat. Notes slot tightly and high notes lock in, at the cost of free blowing.
Detail 05
Number 4 semi-flat rim
Flatter, wider contact spreads pressure across the lip. Better endurance, less flexibility than a rounded rim.
Detail 06
Silver plating
Firmer and grippier on the lip than gold. Wears through at the rim over years and can be replated.
Final check
Know before you order
- 01Mouthpiece only — no pouch, case, or brush included
- 02Trumpet shank; it will not fit a cornet or flugelhorn receiver
- 03Coming from a deep C cup, expect an adjustment period below the staff
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What is the difference between the 13A4a and the 13A4?
Same .660 rim and shallow cup. The 13A4a has the tight a-backbore aimed at lead work; the 13A4 uses a standard c-backbore, which blows freer.
02Will this help me play higher?
It makes the upper register easier to reach and hold, but it does not add range you have not built. The tight backbore rewards a developed embouchure.
03Is this a good student mouthpiece?
Not as a first one. The shallow cup and tight backbore are set up for lead playing. A standard C cup builds tone and low register better early on.
04Does it fit a cornet?
No. This is a trumpet mouthpiece with a trumpet shank. Cornets take a shorter shank of smaller diameter and will not seat it correctly.
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.
