Marcinkiewicz Concert Hall Model Amidst the proliferation of mouthpiece manufacturers, there is one craftsman who consistently produces high-precision mouthpieces. His name is Joe Marcinkiewicz. He once enjoyed immense popularity across genres with his brand MMP, and he has since moved his workshop to Oregon and continues to create music to this day. A remarkable feature of his mouthpiece is that the sound never thins out in the high notes, allowing for maximum control across the entire range and enabling the instrument to resonate efficiently. This is likely the result of his own experience playing with orchestras such as the Stan Kenton Orchestra and the Don Ellis Orchestra, as well as actively incorporating the demands of top artists, primarily from the West Coast. Combining the craftsmanship of a bygone era with the latest computer technology, the Marcinkiewicz trumpet mouthpiece will greatly expand your possibilities. ●About the Concert Hall Model: While Marcinkiewicz mouthpieces generally have a somewhat expansive sound, the Concert Hall model, with its unique and distinctive external shape (multiple ring-shaped protrusions), allows you to achieve a more stable and denser sound without losing the characteristic "resonance" of Marcinkiewicz mouthpieces. ●E9.1 ALT Based on the popular and easy-to-play artist model "E9.1 (Bobby Shew #1.5)" from Marcinkiewicz, this model was created as the Wayne Bergeron signature model, inspired by popular West Coast studio player Wayne Bergeron! Compared to the "E9.1 Shew," the outer and inner diameters of the cup are 0.005 inches (0.127 mm) larger. This is recommended for lead players and those seeking bright, soaring high notes. *This product is a store display and trial item, so the outer box (packaging) may have dents or damage, and there may be minor scratches on the shank of the mouthpiece itself. However, it is a B-grade (outlet) special price item that is in good enough condition to be used without any problems during play. Product images are for illustrative purposes only; please be aware of this beforehand.