Yamaha CR-7D4dS

TrumpetIn Production
Precision Specifications
RIM DIAMETER16.24 mm
CUP DEPTHMedium Deep
THROAT ∅4.1 mm
BACKBORESemi-wide
SHANKShort
CUP SHAPE—
Rim Widththick
Rim Contoursemi-flat
Throat Drill #—
Materialbrass
FinishSilver plated
Weight—
All Around

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Yamaha CR-7D4dS appears in the Trumpet catalog section with 16.24 mm rim, Medium Deep cup, 4.1 mm throat, Semi-wide backbore, and Short shank. Database tags list it for All Around use. 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.

Yamaha · BrassFit Science
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