Shires SL-48
TromboneIn Production
Precision Specifications
RIM DIAMETER25.2 mm
CUP DEPTH35 mm
THROAT ∅6.6 mm
BACKBORE—
SHANKsmall
CUP SHAPE—
Rim Width—
Rim Contour—
Throat Drill #5
Material—
Finish—
Weight—
Recommended For
OrchestralAll Around
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Reference Notes
S.E. Shires trombone mouthpiece, model SL-48. Precision-measured. 25.20mm rim, medium cup, 6.60mm throat. Verified against seshires.com specification 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.