JP233RATH Bass Trombone Bb/F Single Valve

$3,699.00 NZD inc. GST

Michael Rath designed John Packer bass trombone

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The JP233RATH Bass Trombone 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. The development of the JP233 RATH saw the instrument finely balanced to ensure an excellent playing experience for musicians of all levels. An 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 JP233Rath Bass Trombone has caused a real stir in the industry with glowing reviews from many top players. Garreth Beckwich formerly of Grimethorpe Band recently described it as “a real winner of an instrument”.

The JP233RATH Bass Trombone features a .562″ bore and a 9.5″ bell and is constructed from yellow brass throughout. The instrument also features an exclusive Michael Rath design leadpipe which supports flexibility throughout the whole register.

The JP233RATH Bass Trombone Bb/F is supplied with a JP mouthpiece and lightweight case. 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 sheetmusic.

Manufactured to a high quality standard as is expected with all JP Instruments, the JP233Rath Bass Trombone Bb/F is guaranteed for 12 months against faulty manufacturing or materials and is fully tested prior to sale.


  • Key: Bb/F
  • Bore: .562″ Bore (14.27mm)
  • Bell: 9.5″ Bell, High Grade 80:20 Brass
  • Slide: High Grade 80:20 Brass
  • Valves: Single Rotor Valve
  • Finishes: Lacquer
  • Additional features: Bell ring
  • Supplied with: JP601 Mouthpiece, Lightweight case

Richard Ashmore – Ulster Orchestra (BBC Northern Ireland) for the last 14 years. Before joining the Richard worked as a freelance player with, amongst others, the BBC Scottish Symphony Orchestra, BBC National Orchestra of Wales, Halle Orchestra, Royal Liverpool Philharmonic Orchestra, CBSO and Royal Shakespeare Company.
“Well built, well designed instrument. Good balance and alignment, slide works well and nice feel. Feels very easy to play out of the case, slide positions are where you expect them to be. T Tuning and sound quality in all areas is very good. Notes speak easily and are well centred at all dynamics and pitches. Sound quality at this price is excellent – big core of sound. Slide action is very good and build quality and finish is very high. Valve action is good, free blowing with minimal additional resistance at all pitches. Excellent bottom register, but very easy to play throughout .”



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