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Acousti-Balance Brasswind Mouthpieces
Designed & Crafted by Conn-Selmer, Inc.
CKB Acousti-Balance designers borrowed the best from the past and integrated today’s most advanced acoustical knowledge to develop a mouthpiece with superior tonal properties.

Concave sides from the King mouthpieces of the 1960s, knurled exterior from C.G. Conn mouthpieces of the 1920s and rim/cup sizes from Benge mouthpieces of the 1980s – features from the past combined with the science and technology of the present in one superior design.

Acousti-Balance represents an entirely new concept in mouthpiece weight distribution. CKB mouthpieces are machined by precise computer-controlled equipment with the weight and mass balanced between the cup/throat area and the shank. This strategically balanced system results in a highly responsive mouthpiece that is acoustically efficient and well suited to all styles of performance.

CKB 1C & 3C Mouthpieces


Cut-Away of a CKB Mouthpiece
We put the weight where you need it the most!

There is a fine line of balance between the weight added to a mouthpiece and the effect it has on the character of the instrument. Conn-Selmer, Inc. defines that line with the CKB series of new "Acousti-Balance" Brass Mouthpieces.

The mass of the CKB mouthpiece is distributed evenly between the rim, cup, throat and shank of the mouthpiece. This weight distribution balances the vibration control of the entire mouthpiece, a feature that is missing from most heavy-weight brass mouthpieces. The result is a mouthpiece that offers superb control and enhances the overall projection of the instrument.

CKB mouthpieces are available from Conn-Selmer, Inc. authorized dealers around the world. To find a dealer near you, just use the dealer locator.

CKB Mouthpieces are machined by precise computer-controlled equipment

Cat# Model Cup Depth Rim Shape Description
3801B 1B Medium Med. Wide Large cup for big dark sound.  Good choice for symphonic players.
3801BW 1BW Medium Wide Same cup as 1B with the added comfort of a wide rim.
3801C 1C Med. Shallow Med. Wide Same rim as the 1B with a more shallow cup.  Good overall presence of sound with powerful projection.
3801CW 1CW Med. Shallow Med. Wide Same cup as 1C with the added comfort of a wide rim.
3801HC 1-1/2C Med. Shallow Med. Wide Very responsive mouthpiece.  A standard size that provides a warm sound with the power to project through the ensemble.
3803C  3C  Med. Shallow  Med.Wide Excellent all-around mouthpiece.  Quite suitable for all styles of music.  Good choice for intermediate students. 
3803E 3E Shallow Med. Wide Good Choice for lead playing or for Eb and D, and piccolo trumpetsthat receive a trumpet shank mouthpiece.  Great presence with a bright sound.
3805C 5C Med. Shallow Med. Wide A moderate sized mouthpiece for various styles of playing.  Similar characteristics of 3C
3805B 5B Medium Med. Wide This has a deeper cup than the 5C.  It helps a player produce a darker sound.
3807C 7C Med. Shallow Med. Wide The ultimate in a student mouthpiece.  Creates a full, solid sound in all registers.
3813FL 3FL Deep Med. Wide A rim like the trumpet 3C, but with a deeper flugelhorn cup.

Variety of Gold & Silver Plated CKB “Acousti-Balance” Brasswind Mouthpieces


View information on CKB and other brasswind mouthpieces from Conn-Selmer, Inc.

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