AR Resonance Trumpet Backbore Size:M B&S are a high quality

B&S are a high quality German manufacturer

Specifically tailored for each instrument

The flagship model from Besson

No longer are you trying Bach trumpets to make sure you get a "good one"

creating a refined tonal balance with enhanced resonance

AR Resonance Trumpet Backbore Size:M B&S are a high qualitySIZING CHART For decades we have been told a wider rim and a deeper cup is the way to achieve a bigger sound. Or that a shallower, smaller cup is what you need for a lead sound. This is not our philosophy. At AR Resonance we believe the most important element in a mouthpiece is the backbore, then comes the throat, then the rim and finally the cup. Follow us and you'll see why. The most important and often totally neglected parameter each player needs