Trombone mouthpieces developed in colaboration between Bob Reeve and Brass Ark.
- Small Shank
- 11C, standard small shank "Mercury Blank" 24.8mm rim, medium shallow cup. Ideal for small bore tenor and alto trombone playing
- Clarke 6.5AL, standard small shank "Mercury Blank", 25.35mm rim, medium cup. Based on the original 6.5AL mouthpiece developed in the 1930s, The Clarke is a versatile mouthpiece for all around playing. Works great in .508-.525" bore trombones
- Large Shank Tenor
- Jay Friedman Signature, large shank Friedman rim based on a Bach 3G, special V cup and backbore. As used by Jay Friedman of the Chicago Symphony. Mercury Blank Only
- 4G, one or two piece large shank 26mm rim, deep cup. Mercury blank
- 5G "Gladstone", large shank, 25.55mm rim, medium deep cup. Special backbore with a "J" throat. Gives a touch more resistance than a standard 5G.
- Bass Trombone
- "CV" Bass Trombone, large shank, Mercury blank29.5mm rim inner diameter, thin rim profile, deep cup with special efficient backbore and throat. Developed with a legendary bass trombonist who has the initials CV.
- "Mr. Bass Trombone" 1 1/2G 27.15mm rim, "GR" cup
- Orchestral Bass Trombone, large shank, 28.15mm rim inner diameter, medium wide rim, deep cup. A powerful mouthpiece that is extremely efficient while delivering the breadth of sound needed for the demands of the modern bass trombone.