Bach mouthpieces are designed to meet every conceivable playing need and have for nearly three quarters of a century. A Bach mouthpiece will make a poor instrument play well, a good instrument play better. Mega Tone Trumpet Mouthpieces Offer Something Better To create the Mega Tone, Selmer started with genuine Vincent Bach mouthpiece designs, then more than doubled the outside mass. This darkens the sound and allows you to play at a higher dynamic level without distortion. Mega Tone slots extremely well so pitches center dependably. A slightly larger throat affords less resistance and greater flexibility. The result is a warmer more powerful sound that's perfect in the concert hall and adds a new dimension to pop and jazz playing. Because Bach mouthpieces are the accepted standard of quality, their numbers are familiar everywhere as designations for certain models and types.