Bach K3491B Megatone 1B Cornet Mouthpiece in Silver Plate

Bach K3491B 1B Megatone Cornet Mouthpiece Overview

The Bach K3491B 1B Megatone Cornet Mouthpiece is a silver-plated cornet mouthpiece built with more than double the mass of standard Bach models to emphasize a darker, warmer core and added projection control for jazz and symphonic playing.

Bach K3491B 1B Megatone Cornet Mouthpiece Specifications

• Instrument: Cornet mouthpiece
• Series: Megatone
• Cup Size: 1B
• Cup Depth: Medium Deep
• Cup Diameter: 17.00 mm
• Rim Shape: Medium Wide
• Throat: Slightly larger than standard for reduced resistance
• Finish: Silver plate

Condition & Setup

Brand new in the original manufacturer’s packaging

Who the K3491B Cornet Mouthpiece Is For

The Bach K3491B is a Megatone-series cornet mouthpiece designed for players who want a darker sound, a warmer feel, and lower resistance than many standard-mass mouthpieces. With its medium deep 1B cup and medium-wide rim, it suits cornetists looking for a stable, supportive rim contour while maintaining flexibility across dynamic ranges.

What distinguishes the Megatone design is the added mass and a slightly larger throat, which together can reduce perceived resistance and support a broader, more powerful tonal center. This makes the K3491B a practical choice for jazz and symphonic settings where a darker color and stronger fundamental are preferred.

Common Questions About The Bach K3491B

What does “Megatone” change compared to a standard Bach mouthpiece?

Megatone mouthpieces use more than double the mass of standard models and a slightly larger throat, which many players experience as a darker tone, less resistance, and a warmer, more powerful sound.

Is the Bach K3491B 1B suitable for professional use?

Yes. The K3491B is a professional-grade Bach cornet mouthpiece specification commonly chosen by serious jazz and symphonic players who want a darker core sound and a more open feel.

What are the key measurements for the K3491B 1B?

It has a 17.00 mm cup diameter, a medium deep cup, and a medium-wide rim shape, with a slightly larger throat designed to reduce resistance.

We are proud to be an authorized Bach dealer