Denis Wick Heritage Trombone Mouthpiece Large Bore Gold PlatedThe Heritage series increases mass at key points that reduce energy loss with thinner upper walls that provide power and sensitivity at all dynamic levels. The result is maximum sensitivity and response with clearer overtones and improved range. The innovation behind the Heritage series for trombone lies in the combination of increased mass at key points that reduce energy loss with thinner upper walls that provide power and sensitivity at all dynamic