Gold Plated Trumpet Mouthpieces. Available in various sizes and specifications. 6A4A - A shallow ; A ; cup with cushion #4 rim for extreme high register work. 9C4 - Like the #9, however the #4 semi-flat rim provides excellent endurance. 10B4 - A medium-small funnel-shaped ; B ; cup offers both a quality sound and support in the register 11A - This rim size and contour is similar to the #11 but with a shallower ; A ; cup. 11 - A superior mouthpiece with standard characteristics for a free blowing mouthpiece. 11D4 - Slightly deeper than the #11 with a #4 semi-flat rim, which provides a definite cushion feel for endurance. 12A4A - Similar to the 12B4 but with a shallow ; A ; cup, tight ; A ; backbone, which adds both endurance and range. 12B4 - This medium-small conical ; B ; cup provides a full tone and the #4 semi-flat rim allows for more endurance. 12 - A traditional medium size mouthpiece that includes a #3 standard rim and ; c ; backbone allows the player a full spectrum of sound. 13A4A - The shallow ; A ; cup, semi-flat #4 rim and tight ; A ; backbone creates an ideal lead mouthpiece. 13B - This mouthpiece has a ; B ; cup that is slightly deeper than the 13A4 and also offers a narrower, round rim. 14A4A - One of our most popular mouthpieces, the 14A4a offers a shallow ; A ; cup, semi-flat #4 rim and tight ; A ; backbone allows a player a strong upper register without sacrificing tonal production. 14A4 - Same as the 14A4a but with a standard ; c ; backbone which offers a more ; open ; feel. 14B - Similar to the #14 but with a ; B ; (medium-small) cup size. 14 - With a standard rim, cup and backbone, the 14 is an excellent choice for all-around playing. 15A4A - A larger diameter mouthpiece with a shallow ; A ; cup and tight ; A ; backbone for upper register playing. #4 semi-flat rim offers comfort in upper register. 15B With the same diameter as the #15, this mouthpiece includes ; B ; style cup which produces a more brilliant sound than the standard #15 mouthpiece. 15 - An excellent all-around mouthpiece which offers a free blowing, clear sound. 15C4 - This mouthpiece is similar to the #15 but with the #4 semi-flat rim for increased endurance. 17D4 - This mouthpiece includes a deeper ; D ; cup and #4 semi-flat rim for improved endurance. 17D4D - A larger blowing mouthpiece than the 17D4 because of the increase ; d ; backbone. 18 - The high point being nearer to the centre makes this mouthpiece feel smaller than it is. The standard characteristics produce a rich, brilliant tone 19 - The ; C ; cup, #3 rim and standard ; c ; backbone are similar to the #20 but with a slightly smaller diameter 20D2D - Similar to the #20 in diameter but includes a larger ; D ; style cup, #2 semi-round rim and larger ; d ; backbone. 24 - Our largest cup diameter offered. This mouthpiece provides a huge volume of sound.