Yamaha CR-11B4L
TrumpetIn Production
Precision Specifications
RIM DIAMETER16.64 mm
CUP DEPTHMedium Shallow
THROAT ∅3.65 mm
BACKBOREStandard
SHANKLong
CUP SHAPE—
Rim Widthstandard
Rim Contoursemi-round
Throat Drill #—
Materialbrass
FinishSilver plated
Weight—
Recommended For
StudentAll Around
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Reference Notes
Bright and rich upper range for piccolo work.23 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.