Shires T-3-D
TrumpetIn Production
Precision Specifications
RIM DIAMETER17.02 mm
CUP DEPTH11.43 mm
THROAT ∅3.86 mm
BACKBORE—
SHANKtrumpet
CUP SHAPE—
Rim Width—
Rim Contour—
Throat Drill #23
Material—
Finish—
Weight—
Recommended For
OrchestralClassical
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Reference Notes
S.E. Shires trumpet mouthpiece, model T-3-D. Precision-machined to Shires' published measurement specifications. 17.02mm rim diameter with deep cup depth and 3.86mm throat. Verified against seshires.com measurement tables. Use these measurements as a comparison starting point: fit and response still depend on the player, dental structure, instrument receiver, and each manufacturer's measuring method.