Detail 01
Shallow A cup
The shallowest cup Schilke offers. High notes come easier; you give up the body a deeper C cup produces.
Product detailSKU #1275776904107
SchilkeHeavyweight Series Trumpet Mouthpiece in Silver 13A4a Silver
1/8
Independent shopping perspective
The Korena take
Shallow-cup lead trumpet mouthpiece on Schilke's heavyweight blank. For players who work the upper register and want a rim that holds up there.
Strong match
Who this is for
- Lead playing that sits high in the register
- Long sets where upper-register endurance runs out first
- Players who prefer a narrow cup diameter, 16.76mm
Consider the trade-offs
When to look elsewhere
- Players wanting cup depth for a full, dark tone
- Developing players — the standard 13 C-cup fits better
- Anyone used to wide diameters like the 20
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
.660 inch (16.76mm) cup diameter
Small rim circle, less lip inside the cup. Tighter target to hit, but less of your chops doing the work.
Detail 03
Number 4 semi-flat rim
Flatter than the standard 3 rim. Spreads pressure across more lip, which is why it lasts in the upper register.
Detail 04
27 throat
The tighter of the two throat sizes here — the medium models use 26. More resistance to push against up high.
Detail 05
Tight a-backbore
Narrow taper behind the throat keeps resistance up through the shank instead of opening out.
Detail 06
Heavyweight profile
Same cup, rim and backbore dimensions as the standard 13A4a, in a heavier body.
Final check
Know before you order
- 01Mouthpiece only — no pouch, case, or cleaning brush included
- 02About $50 over the standard-series price; the difference is the blank
- 03Moving to a shallow A cup takes weeks. Keep your current piece
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is the 13A4a good for a beginner?
No. It's a shallow lead piece. The standard 13, with its C cup and rounder number 3 rim, is the developing-player choice — rounder rim, quicker response, more cup volume.
02What's the difference between Heavyweight and Standard?
Cup diameter, rim and backbore are the same. The Heavyweight uses a heavier blank, so the piece in your hand weighs more. On paper the dimensions are identical.
03How does the 13A4a compare to the 14A4a?
Same shallow A cup, number 4 semi-flat rim, tight a-backbore and 27 throat. The 14A4a is wider — 17.09mm against 16.76mm.
04Which Schilke mouthpiece has the smallest cup?
The 6A4a at 15.99mm, with a shallow A cup and a cushion number 4 rim for extreme high-register work. The 13A4a is the next step wider.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
5 detailsOther
- Category Source
- detail
- Tier
- new
- Korena Special
- false
- Source Id
- site51275776904107
- Prop65
- WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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