John Packer JP603 4B Cornet Mouthpiece

JP603 205516

John Packer JP603 4B Cornet Mouthpiece

Code: 205516

John Packer '600' series mouthpieces benefit from the same high level of care and attention as our range of JP Musical Instruments. These mouthpieces offer unbeatable value and are a reliable choice for students and entry level players.

Designed for ease of use, JP mouthpieces are generally free-blowing and capable of playing with a bright and attractive sound. The JP range of mouthpieces has been developed to mimic the performance of more expensive makers.  

This JP603 model has been specifically designed for players looking for a good all around cornet mouthpiece.


  • Cup Diameter: 16.5mm
  • Rim Width: 5.17mm
  • Cup Size: Medium
  • Backbone: V-Type
  • Suitable For: Cornet


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