JK Exclusive Classic T2D
TubaIn Production
Precision Specifications
RIM DIAMETER33.5 mm
CUP DEPTHMedium
THROAT ∅—
BACKBORE—
SHANK—
CUP SHAPEfunnel
Rim Width—
Rim Contour—
Throat Drill #—
Material—
Finish—
Weight—
Recommended For
OrchestralClassical
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Special Features
- Exclusive Classic
- Conical Cup
Reference Notes
JK Exclusive Classic tuba size 2D. More compact Classic tuba cup. 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
JK · BrassFit Science
JK Guide
Exclusive system, USA-Line, K vs M horn logic, P vs PO low-brass families, and shank decoding.