The Carl Fischer Signature Jazz Model Mouthpiece is a collaboration between Carl Fischer and Gary Radtke of GR Technologies. This mouthpiece is designed to produce a huge fat sound full of overtones with an optimum amount of trumpet brilliance. This versatile mouthpiece is ideal for all around use.

The Carl Fischer Signature Mouthpiece has a flat rim with a soft bite and a very high alpha angle. The highpoint is towards the outside and the bite is very soft. This combination makes the inside diameter feel larger than it actually is. The cup has a smaller volume and the throat entrance is large with very open playing characteristics.

This mouthpiece has the large #3 GR Backbore. This mouthpiece allows the player to play with a big fat sound from the extreme low register to the extreme upper register. It also allows for easy note bending and the ability to shade and color the sound. The flat wider rim gives great endurance and comfort.