Detail 01
.953" cup diameter
Moderate rim size. Enough surface for endurance without the lip weight a 1.010" piece demands.
Product detailSKU #1275776904647
SchilkeStandard Series Small Shank Trombone Mouthpiece 45B Silver
Independent shopping perspective
The Korena take
Small-shank trombone mouthpiece, .953" cup with a semi-flat contour rim. For lead and commercial tenor trombone players who need a bright top end.
Strong match
Who this is for
- Lead trombone in big band or commercial sections
- Players fighting for a secure high register
- Small to medium bore tenor trombones with small-shank receivers
Consider the trade-offs
When to look elsewhere
- Large bore orchestral trombone — cup is too small and shallow
- Bass trombone or euphonium players needing large-shank fit
- Players wanting a dark, broad symphonic sound
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
Contour profile rim
Semi-flat with the high point near center. Adds slur flexibility and quick response over a fully rounded rim.
Detail 03
Small shank
Fits small and medium bore tenor trombone receivers only. Will not seat in a large-shank instrument.
Detail 04
15/64 throat
Standard bore for this range. Keeps resistance up, which helps articulation and upper register control.
Detail 05
Larger cup volume than the 43A
More body and warmth than a pure screamer piece while keeping the lead-oriented rim feel.
Detail 06
Silver plating
Slightly grippier feel than gold and standard on brass mouthpieces. Some players react to nickel content underneath.
Final check
Know before you order
- 01Check your receiver — small shank and large shank are not interchangeable
- 02Mouthpiece only; no pouch, case, or brush included
- 03Rim size changes take weeks to adjust to; don't judge day one
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit my trombone?
Only if your trombone takes a small-shank mouthpiece — typically small and medium bore tenor horns. Large bore tenor and bass trombones use large shank and will not accept it.
02Is the 45B good for beginners?
The plain 45 is the beginner-oriented piece in the line. The 45B's contour rim and lead-oriented cup are aimed at players already playing commercial or section lead parts.
03How does the 45B differ from the 45?
Same .953" cup diameter, but the 45B uses the contour profile and a cup volume set up for lead playing rather than the general-purpose 45.
04Can I use this on euphonium or baritone?
No. Those take their own shank sizes and larger cups. The 46D is the piece in this line pointed at younger baritone and euphonium players.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Silver
23 detailsOther
- 40
- 22.53 mm, .887” cup diameter; 15/64 throat. Since the cup diameter is small, the upper register is improved. In addition, the tone has considerable projection. It is excellent for the bass trumpet and valve trombone.
- 42
- 23.22 mm, .914” cup diameter; 15/64 throat. Slightly larger diameter and deeper than the 42B, the 42 features a standard C cup.
- 45
- 24.38 mm, .953” cup diameter; 15/64 throat. The semi-flat rim has a high point close to the center of the mouthpiece which allows for a great deal of flexibility. Ideally suited for the beginner trombone player.
- 46
- 24.54 mm, .966” cup diameter; 15/64 throat. Slightly larger than the 45, this is also a good beginner’s mouthpiece.
- 47
- 24.99 mm, .984” cup diameter; 15/64 throat. For both professionals and students alike, this outstanding mouthpiece combines good response with superior tone quality and intonation.
- 50
- 25.40mm, 1.00” cup diameter; 17/64 throat. Particularly adapted to the medium and medium-large bore tenor trombones. The Schilke standard options make this a fine all- around mouthpiece.
- 51
- 25.63 mm, 1.010” cup diameter; J throat. A large bowl-shaped cup producing a rich tone quality. Ideally suited for large bore tenor and orchestral performers.
- 52
- 25.78 mm, 1.015” cup diameter; 17/64 throat. Slightly larger diameter than the model 51, this mouthpiece produces a slightly broader sound.
- 53
- 26.24 mm, 1.033” cup diameter; 15/64 throat. This combination of large cup diameter and bowl shape is widely favored by those who desire a rich, full sound.
- 45b
- 24.30mm, .953” cup diameter; 15/64 throat. Contour profile—designed for the lead trombone player with a larger cup volume than the 43A.
- 46d
- 24.76 mm, .975” cup diameter; 15/64 throat. The cup diameter and volume is slightly larger than the 46, producing a full, resonant tone. Also recommended for the younger baritone/euphonium player.
- 43a
- 23.57 mm, .924” cup diameter; 15/64 throat. Contour profile—this mouthpiece was designed for the lead trombone player desiring an easy high register.
- 42b
- 22.99 mm, .921” cup diameter; 15/64 throat. Contour profile—this mouthpiece is well suited for the small tenor trombone and lead or commercial playing.
- 51b
- 25.63 mm, 1.010” cup diameter; F throat. This mouthpiece incorporates a large diameter with a medium-small B cup and small throat.
- 40b
- 22.51 mm, .886” cup diameter; 15/64 throat. Extremely small inner rim diameter and shallow B cup. This mouthpiece, with its wide-rounded rim, works well for the trumpet player who doubles on trombone.
- 52d
- 25.78 mm, 1.015” cup diameter; ¼ throat. Like the 51D, the large D cup makes this mouthpiece ideal for symphonic trombone playing. Also a good choice for the Euphonium player requiring a larger diameter than the 51D.
- 51d
- 25.55 mm, 1.005” cup diameter; J throat. One of our most popular, this mouthpiece offers a very large D cup and is excellent for the strong player. It is particularly suited for the Euphonium, producing a full dark tone.
- 47c4
- 25.10mm, .988” cup diameter; 15/64 throat. Like the model 47 but with a slightly wider, semi-flat number 4 rim.
- 52e2
- 25.91 mm, 1.020” cup diameter; J throat. With its extremely deep E cup and narrower, rounder number 2 rim makes this mouthpiece an ideal symphonic choice for the robust player. Also a good choice for Euphonium player requiring more cup volume than the 52D.
- 50c4
- 25.40mm, 1.00” cup diameter; F throat. The medium-deep cup and medium-wide rim make this mouthpiece an outstanding choice for medium and large-bore tenor trombones, combining a rich, full sound with a high level of efficiency and playability.
- 51c4
- 25.63 mm, 1.010” cup diameter; J throat. Similar to the model 51 with a slightly shallower cup and semi-flat number 4 rim.
- 44e4
- 24.28 mm, .956” cup diameter; 15/64 throat. Though a small cup diameter, this mouthpiece offers a very deep E cup and semi-flat number 4 rim.
- 47b
- 24.87 mm, .979” cup diameter; C throat. Contour profile—This mouthpiece is a good all-around mouthpiece for the jazz player that is requiring quick response and a resonant high register.
