Medium cup. The most often used for the whole repertoire. The design of the cup and the little resistance of the backbore makes the sound more focused. Ideal for symphonic repertoire and trombone alto soloist concerts.
Inner rim diameter: 24.75mm
Outer rim diameter: 39mm
Cup depth 22mm / Throat 5,50mm
Backbore Medium Symphony
Rim options: F semi flat - S rounded