Yamaha SL-45C2S
TromboneIn Production
Precision Specifications
RIM DIAMETER24.26 mm
CUP DEPTHMedium
THROAT ∅5.85 mm
BACKBORE—
SHANKSmall
CUP SHAPE—
Rim Widthstandard
Rim Contoursemi-round
Throat Drill #—
Materialbrass
FinishSilver plated
Weight—
Recommended For
Jazz
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Reference Notes
Clean bite; popular with jazz/studio players.29 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.
Brand Deep Dive
Yamaha · BrassFit Science
Yamaha Mouthpiece Guide
Yamaha mouthpiece numbering, cup families, and instrument-specific selection guide.