John Packer JP371SW Bb Cornet

  • Advanced
  • Key Bb
  • 102492
JP371 Cornet Lacquer CUTOUT reduced




John Packer JP371SW Bb Cornet

Code: 102492,102555

The JP371SW is becoming a strong challenger to some of the larger names within the professional cornet market. Providing professional performance at a great price point, the JP371SW is becoming a popular choice for players of all ages and abilities.

Unique benefits

Designed in collaboration with Smith-Watkins, the JP371SW benefits from their specialist expertise and professional components. Constructed from a High Grade 80:20 Brass, the JP371SW features a specially designed solid silver Smith-Watkins leadpipe, offering a round, warm sound perfect for brass bands. The JP371SW features a large bore for powerful playing and high tolerance monel valves for improved playability and reliability.

Product benefits


  • Model: JP371SW, JP371SWS
  • Key: Bb
  • Bell Size: High Grade Brass - 123mm (4.84"), One piece
  • Valves: Piston 3
  • Bore: Large 11.9mm (0.469")
  • Water Key: Lever 2
  • Body: High Grade Brass
  • Finish: Lacquer (JP371SW)
  • Finish: Silver Plated (JP371SWS)
  • Lyre Box: Yes
  • Mouthpiece: JP 4B
  • Leadpipe: Smith Watkins design, solid silver
  • Instrument Weight: 1.08Kg (2lb 6oz)
  • Weight with case: 4.58Kg (10lb 2oz)
  • Box Dimensions: 62x24x28cm (24x10x11in)
  • Boxed Weight: 5.4Kg (11lb 13oz)


John Packer JP371SW Bb Cornet

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I discovered John Packer instruments whilst searching for a decent student model trumpet for my son. Having bought a used one, I found it to play very well and with excellent build quality. I decided to put my faith in a JP cornet for myself despite never having tried one. The service by John Packer was amazing and the instrument arrived within 24 hours of my order. I found this cornet easy to blow in all registers, I found it particularly easy to control quiet playing in the low and mid registers and it blew freely up to F above top c without too much effort. The valves were nicely in tune and again it looks to be very well built. Very happy with this instrument.

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Supplied with

The JP371SW is supplied in JP851 Pro Double Trumpet case, and an outer pocket perfect for sheet music. Also included is a JP 4B mouthpiece, a bottle of Ultra Pure valve oil and a maintenance guide with advice to help keep your instrument in perfect order.

Product supplied