Vandoren CM308 B45 Bb Clarinet Mouthpiece Overview

The Vandoren CM308 B45 is an ebonite Bb clarinet mouthpiece designed as a widely compatible, all-purpose option, built around an intermediate tip opening and a medium-long facing for balanced response, articulation, and control. Vandoren mouthpieces have helped define modern clarinet sound for decades, and the B45 remains a common choice for players who want clear intonation and reliable playability across ensemble and solo settings.

Vandoren CM308 B45 Bb Clarinet Mouthpiece Specifications

• Instrument: Bb Clarinet
• Material: Ebonite (hard rubber)
• Model: B45 (CM308)
• Tip Opening: 119.5 mm
• Facing Length: Medium-Long
• Beak: Traditional

Condition & Setup

Brand new in original packaging.

Who the CM308 B45 Bb Clarinet Mouthpiece Is For

The Vandoren B45 (CM308) is a Bb clarinet mouthpiece designed to be a universal, do-it-all choice for a broad range of clarinetists. Its intermediate tip opening paired with a medium-long facing is intended to balance flexibility with stability, supporting crisp and accurate articulation while maintaining consistent response and dependable intonation.

This model is well suited to advancing students, collegiate players, and professionals who want a familiar, mainstream Vandoren setup that works across common repertoire and ensemble demands. Within Vandoren’s lineup, the B45 is frequently chosen when a player wants one mouthpiece that can cover daily practice, section work, and performance without requiring an extreme setup.

Common Questions About The Vandoren CM308 B45

Is the Vandoren B45 a good “universal” Bb clarinet mouthpiece?

Yes. The B45 is specifically known as a widely compatible mouthpiece because its intermediate tip opening and medium-long facing tend to suit many embouchures and reed strengths, making it a common baseline choice.

What does a medium-long facing do on a Bb clarinet mouthpiece?

A medium-long facing typically helps balance response and control, offering enough flexibility for shaping tone while supporting clean articulation and stable pitch when matched with an appropriate reed.

Is this mouthpiece suitable for professional use?

Yes. Vandoren mouthpieces are widely used by professional clarinetists, and the B45 is a standard, performance-proven model valued for intonation consistency, clear articulation, and reliable response.