Standard Series trumpet mouthpieces are arranged in ascending order from deep to shallow cup depths, with the #0 being the deepest, and the #15 being the shallowest. This arrangement allows players to select mouthpieces by precise increments of depth to find the correct cup depth and volume required for their individual playing needs.
Some of our mouthpiece models are dual numbered. This dual number is used to help identify industry popular Bach mouthpiece models. For example our model #4/7C, the #4 is a Marcinkiewicz mouthpiece inspired by the Bach 7C. The model number is designated 4/7C to reference its size and comparison to the Bach 7C.
All Standard Series mouthpieces are offered with our "S" backbore. The "S" backbore is combined with a No. 26 throat to give a broader darker tone.