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John Packer JP233 Rath Bb/F Bass Trombone

Code: 102290

The JP233 RATH is John Packer's Bb/F Single Valve Bass Trombone, developed in collaboration with UK trombone guru Michael Rath. This JP Rath design combines the simplicity of a single in-line rotary valve with a modern open wrap style.

in stock

Our price £1,427.24 exc. VAT

RRP: £2,046.80

Pay On Finance (subject to status)

Loan value:£1,541.42
35 Monthly Repayments:£49.35
Final Payment:£49.35
APR Representative:9.9%
Total Amount Repayable:£1,947.87

Representative Example 9.9% APR Representative

Purchase Price:£250.00
Amount of Credit:£225.00
Total Repayable:£261.64
Rate of Interest (Fixed):9.9%
12 Monthly Payments:£15.78
Agreement Duration:12 Months

To buy this instrument on finance, please add it to the cart and follow the instructions that then follow

Product details

Suitable for

The JP233 Rath is John Packer's Bb/F Single Valve Bass Trombone and is suitable for musicians who are looking for a single trigger bass trombone.

Lighter than the double trigger bass trombone, but with an equally broad sound.

Developed in collaboration with UK trombone guru Michael Rath. This JP Rath design combines the simplicity of a single in-line rotary valve with a modern open wrap style. The development of the JP233 Rath saw the instrument finely balanced to ensure an excellent playing experience for musicians of all levels.

Unique benefits

The JP233 Rath features:


  • .562" bore
  • 9.5" bell
  • Constructed from high grade brass throughout
  • Exclusive Michael Rath design leadpipe which supports flexibility throughout the whole register


Extremely high level of craftsmanship is apparent throughout, as is to be expected with instruments that bare the Rath seal of approval

The quality of the JP233 Rath has caused a real stir in the industry with glowing reviews from many top players. Garreth Beckwith formerly of Grimethorpe Band recently described it as "a real winner of an instrument".

All JP Instruments are covered by a comprehensive 2 year warranty against manufacturing defects. Please note this does not cover aesthetic or finish faults. For full terms & conditions visit the JP Musical Instruments website.‚Äč

Supplied with

The JP233 Rath Bb/F Trombone is supplied with a JP mouthpiece, lightweight case and an Ultra-pure Maintenance Pack. The case is well designed to be robust yet lightweight and to provide as much protection to your instrument as possible. It is equipped with backpack straps and a comfortable should strap as standard and also includes a small storage pocket accessible from the outside suitable for storing small accessories and sheet music.


  • Model: JP233 Rath
  • Key: Bb/F
  • Bell Size: High Grade Brass 241mm (9.5”)
  • Valves: 1 Rotary
  • Bore: Large 14.27mm (.562”)
  • Water Keys: 1
  • Body: High Grade Brass
  • Finish: Lacquer
  • Lyre Box: No
Customer Reviews

1 Review

  • Steve Martch reviews JP233 Rath

    By: ,

    The JP RATH Bass Trombone arrived yesterday. Just wanted to say how impressed I am.The quality of finish and Feel are superb and it blows very easily with a really rich focused sound - on a par with my Yamaha XENO. I am interested in getting a JP RATH 230 ort 231 Tenor in the future


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