JK Exclusive P8A
TromboneIn Production
Precision Specifications
RIM DIAMETER25.25 mm
CUP DEPTHDeep
THROAT ∅—
BACKBORE—
SHANKlarge shank
CUP SHAPEbowl
Rim Width—
Rim Contour—
Throat Drill #—
Material—
Finish—
Weight—
Recommended For
ClassicalAll Around
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Special Features
- Exclusive
Reference Notes
JK Exclusive P8A appears in the Trombone catalog section with 25.25 mm rim, Deep cup, and large shank shank. Database tags list it for Classical and All Around use. Noted features include Exclusive. 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.