Introduction
The Vandoren B45 Dot Bb Clarinet Mouthpiece (Model CM309) is designed to offer a balance of ease of blowing and a rich, round sound. It features a large chamber and a traditional beak, making it a popular choice for clarinetists seeking a versatile mouthpiece. This model shares technical characteristics with the standard B45 but is engineered for enhanced blowing ease.
Key characteristics include:
- Tip Opening: 119.5 (1/100mm)
- Facing: Medium Long
- Beak: Traditional
- Recommended Reeds: Vandoren #2.5 to #3.5+

Image 1: Front view of the Vandoren B45 Dot Traditional Bb Clarinet Mouthpiece. This image displays the mouthpiece's overall shape and the "Vandoren Paris B45." engraving.
Setup and Assembly
Proper setup of your Vandoren B45 Dot mouthpiece is essential for optimal performance. Follow these steps to prepare your mouthpiece for playing:
- Inspect the Mouthpiece: Before each use, visually inspect the mouthpiece for any damage, cracks, or debris. Ensure the cork on the tenon is clean and free of residue.
- Prepare the Reed: Moisten your clarinet reed (Vandoren #2.5 to #3.5+ recommended) by placing it in your mouth or soaking it in water for a few minutes. This helps the reed vibrate properly.
- Attach the Reed: Carefully place the flat side of the moistened reed against the flat table of the mouthpiece. Align the tip of the reed with the tip of the mouthpiece, ensuring it is centered.
- Secure with Ligature: Slide a ligature over the reed and mouthpiece. Position the ligature so it holds the reed firmly against the mouthpiece table without restricting its vibration. Note: A ligature is not included with this mouthpiece and must be purchased separately. Ensure your ligature is compatible with a standard Bb clarinet mouthpiece.
- Attach to Clarinet: Gently twist the assembled mouthpiece onto the corked tenon of your clarinet's barrel. Apply a small amount of cork grease to the barrel cork if it is too tight, but avoid forcing the mouthpiece on. Ensure the mouthpiece is aligned with the clarinet keys.

Image 2: Angled view of the Vandoren B45 Dot Traditional Bb Clarinet Mouthpiece, highlighting the cork and the "B45." marking.
Operating Instructions
The Vandoren B45 Dot mouthpiece is designed for ease of playability and a consistent, rich tone. To achieve the best results:
- Embouchure: Develop a firm yet flexible embouchure. The mouthpiece's design promotes a free-blowing response, allowing for a relaxed embouchure while maintaining control.
- Air Support: Utilize consistent and strong air support from your diaphragm. This mouthpiece's large chamber is optimized to produce a full, round sound with proper air flow.
- Reed Selection: Experiment with different reed strengths within the recommended range (#2.5 to #3.5+) to find the best match for your playing style and desired sound. A well-matched reed will enhance the mouthpiece's responsiveness and tonal qualities.
- Dynamic Control: The B45 Dot allows for a wide dynamic range. Practice controlling your air speed and embouchure to achieve smooth transitions between soft (pianos) and loud (fortes) passages.
- Intonation: Regular practice with a tuner will help you adjust your embouchure and air to maintain accurate intonation across all registers of the clarinet.
Maintenance and Care
Proper maintenance extends the life and performance of your mouthpiece. Follow these guidelines:
- After Each Use:
- Remove the reed and ligature. Wipe the reed dry and store it in a reed case.
- Gently clean the mouthpiece bore and exterior with a soft, lint-free cloth or a mouthpiece brush and mild soap (like dish soap) and lukewarm water.
- Rinse thoroughly with lukewarm water, ensuring no soap residue remains.
- Dry the mouthpiece completely with a soft cloth or allow it to air dry before storing. Avoid using hot water or harsh chemicals, as these can damage the material.
- Cork Care: Regularly apply a small amount of cork grease to the tenon cork to keep it supple and prevent wear when attaching to the clarinet.
- Storage: Store the mouthpiece in a protective case or pouch when not in use to prevent scratches, chips, and exposure to extreme temperatures or direct sunlight.
- Avoid Dropping: Mouthpieces are delicate. Avoid dropping them, as this can cause irreparable damage to the tip or table.
Troubleshooting
If you encounter issues with your mouthpiece, consider the following common solutions:
- Difficulty Producing Sound or Stuffy Response:
- Check reed placement: Ensure the reed is centered and aligned correctly on the mouthpiece.
- Check reed condition: A damaged, old, or improperly moistened reed can cause issues. Try a new reed.
- Check ligature: Ensure the ligature is not too tight or too loose, and that it is positioned correctly.
- Review embouchure: Ensure your embouchure is firm but not overly tight, allowing the reed to vibrate freely.
- Poor Intonation:
- Adjust mouthpiece position: Slightly pulling out or pushing in the mouthpiece on the barrel can affect pitch.
- Check embouchure and air support: Inconsistent embouchure or air can lead to intonation problems.
- Consider reed strength: A reed that is too hard or too soft for your playing style can impact intonation.
- Unwanted Squeaks:
- Check reed for damage: Even a small chip or crack can cause squeaks.
- Ensure reed is properly moistened and seated.
- Adjust embouchure: Squeaks often result from an incorrect embouchure or too much pressure on the reed.
Specifications
| Model Number | CM309 |
| Instrument Key | Bb Clarinet |
| Style | Traditional |
| Tip Opening | 119.5 (1/100mm) |
| Facing | Medium Long |
| Beak Type | Traditional |
| Material | Durable Hard Rubber (as commonly used for clarinet mouthpieces) |
| Item Weight | 0.8 ounces |
| Product Dimensions | 2 x 2 x 6 inches |
Note on Material: While some product listings may indicate "Wood," the Vandoren B45 Dot mouthpiece is typically crafted from high-quality hard rubber (ebonite), a standard material for clarinet mouthpieces known for its acoustic properties and durability.
Warranty and Support
For specific warranty information regarding your Vandoren CM309 B45 Dot Traditional Bb Clarinet Mouthpiece, please refer to the documentation provided with your purchase or visit the official Vandoren website. Warranty terms and conditions may vary by region and retailer.
For technical support, product inquiries, or assistance with any issues not covered in this manual, please contact Vandoren customer service or your authorized Vandoren retailer.
Vandoren Official Website: www.vandoren.fr