ERIC AUBIER Model: Powerful full sound. An all-around model. Rim Inner Diameter: 17.03㎜ Rim Contour: Semi-flat Rim Thickness: Standard Cup Depth: Standard Throat: 3.80㎜ Backbore: Standard MARK GOULD Model: This mouthpiece has been designed for a big orchestral sound with enough projection to fill a concert hall. The wide inner rim size and open throat allow a warm broad sound even at fortissimo. Rim Inner Diameter: 17.30㎜ Rim Contour: Semi-flat Rim Thickness: Standard Cup Depth: Semi-shallow Throat: 3.88㎜ Backbore: Standard BOBBY SHEW LEAD Model: The Lead model gives that extra sizzle and high note clarity for playing lead parts. Rim Inner Diameter: 16.54㎜ Rim Contour: Semi-round Rim Thickness: Semi-thick Cup Depth: Very shallow Throat: 3.56㎜ Backbore: Narrow BOBBY SHEW JAZZ Model: The Jazz model has a fairly deep roomy cup for a warm big sound and a throat and backbore designed to give enough jump and snap for maneuvering through quick jazz passages with a rich full sound. Rim Inner Diameter: 16.85㎜ Rim Contour: Semi-round Rim Thickness: Semi-thick Cup Depth: Standard Throat: 3.65㎜ Backbore: Standard ALLEN VIZZUTTI GOLD Model: The shallow cup with smooth inner rim edge gives a clear focused sound and plays evenly in all registers. Rim Inner Diameter: 16.67㎜ Rim Contour: Semi-flat Rim Thickness: Semi-thick Cup Depth: Very shallow Throat: 3.56㎜ ackbore: Very narrow THOMAS HOOTEN Model: This model has been designed to deliver the power and depth required in orchestras and similar situations. Rim Inner Diameter: 17.36㎜ Rim Contour: Semi-flat Rim Thickness: Standard Cup Depth: Semi-shallow Throat: 3.80㎜ Backbore: Semi-wide ERIC MIYASHIRO EM1 Model: This mouthpiece is optimized for the Miyashiro trumpet but works well for any lead player. A medium-small rim diameter shallow cup and weighted body provide a clear high register that is easy to play with enhanced tone and improved playability through the entire range. Rim Inner Diameter: 16.02㎜ Rim Contour: Semi-round Rim Thickness: Thin Cup Depth: Shallow Throat: 3.65㎜ Backbore: Narrow ERIC MIYASHIRO EM2 Model: This mouthpiece is optimized for the Miyashiro trumpet but works well for any lead player. A medium-small rim diameter shallow cup and weighted body provide a clear high register that is easy to play with enhanced tone and improved playability through the entire range. The EM2-MK2 has a slightly larger rim diameter than the EM1-MK2 for players who prefer a bit more room. Rim Inner Diameter: 16.22㎜ Rim Contour: Semi-round Rim Thickness: Thin Cup Depth: Shallow Throat: 3.65㎜ Backbore: Narrow JOHN HAGSTROM Model: ThIs mouthpiece has a smaller rim that creates a more efficient balance between the performer and trumpet. Balanced with the features of a deeper cup and larger back bore this mouthpiece is an optimal choice for the needs of those with a heavy performance schedule. The YAC HAGSTROM is the standard mouthpiece on the YTR-9445CHS Orchestral C Trumpet which Hagstrom also helped design.