Yamaha CR-7A4L
TrumpetIn Production
Precision Specifications
RIM DIAMETER16.24 mm
CUP DEPTHShallow
THROAT ∅3.65 mm
BACKBORENarrow
SHANKLong
CUP SHAPE—
Rim Widththick
Rim Contoursemi-flat
Throat Drill #—
Materialbrass
FinishSilver plated
Weight—
Recommended For
LeadCommercial
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Reference Notes
Small diameter with outstanding flexibility.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.