Yamaha TR-11B4-GP
TrumpetIn Production
Precision Specifications
RIM DIAMETER16.46 mm
CUP DEPTHMedium Shallow
THROAT ∅3.65 mm
BACKBOREStandard
SHANKGP finish; brilliant tone and extra endurance.5
CUP SHAPE—
Rim Widthstandard
Rim Contoursemi-round
Throat Drill #—
Materialbrass
FinishGold plated
Weight—
Recommended For
StudentAll Around
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Special Features
- Gold Plated
Reference Notes
Yamaha TR-11B4-GP appears in the Trumpet catalog section with 16.46 mm rim, Medium Shallow cup, 3.65 mm throat, Standard backbore, and GP finish; brilliant tone and extra endurance.5 shank. Database tags list it for Student and All Around use. Noted features include Gold Plated. 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.