It is most commonly used by professionals and beginners all over the world.
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It has a rich volume, excellent intonation, good response from high to low notes, rich reverberation, and even grains of sound across the entire range, and moderate resistance prevents fatigue.
The extremely shallow cup for the E♭ tube provides crisp, brilliant sound in the extremely high register. Often used for piccolo trumpets.
Diameter 16.2mm
Cup depth S (shallow)
Rim thickness MW (medium). Similar to 7C.