Yamaha CR-13E4S
TrumpetIn Production
Precision Specifications
RIM DIAMETER16.7 mm
CUP DEPTHDeep
THROAT ∅4.5 mm
BACKBOREStandard
SHANKShort
CUP SHAPEv-shaped
Rim Widthstandard
Rim Contoursemi-flat
Throat Drill #—
Materialbrass
FinishSilver plated
Weight—
Recommended For
All Around
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Reference Notes
Rich, heavy tone with deep "V" cup.22 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.