JP331RATH Tenor Trombone Bb/F

$3,295.00$3,399.00 NZD inc. GST

Fantastic Bb/F trombone made in collaboration with trombone guru Michael Rath

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The JP331RATH medium large bore (.525″) Bb/F trombone is the latest in a line of collaborations with trombone guru Michael Rath. Michael has put many years of experience into the design of the leadpipe, the operation of the valve and the methods of construction. The custom designed leadpipe gives excellent response in all registers while retaining support for inexperienced players. The ergonomic thumb lever is easy to adjust for smaller hands and the closed-wrap design and counterweight ensure optimum balance and enable younger players to retain good posture beyond 4th position. The JP331RATH Tenor Trombone sets new standards in the intermediate market and beyond.


  • Key: Bb/F
  • Bore: .525″ (13.34mm) Medium Large Bore
  • Bell: 8″ (203.20mm), High Grade 80:20 Brass
  • Slide: High Grade 80:20 Brass
  • Waterkeys: 1
  • Finishes: Lacquer or Silver Plate
  • Additional features: Exclusive Michael Rath design leadpipe, closed wrap design with counterweight, Bell ring, Ergonomic thumb lever
  • Supplied with: JP Mouthpiece, JP Pro lightweight case

Stephen Sykes – 2009 Radio 2 Best Young Brass Soloist
“The 331 offers the Bb/F combination that is becoming increasingly the popular instrument of choice for young trombonists both in the UK and abroad.

This is where Rath’s experience comes into its own for me – with an instrument that is so well designed and put together that it is hard to think of anything in the same class for the money.

The medium large bore (.525″) offers real flexibility throughout the range, a classic well rounded, fully centred tone and great intonation in both the Bb and F guises.

It’s the design, with young student player in mind that impresses most however.

Rath have really put in the hours in the workshop to make sure all the elements blend together to enhance the playing experience.

The trigger mechanism is lightning fast, whilst the adjustable thumb lever is a real bonus – ensuring that even the smallest of hands can work the mechanism in comfort.

The slide has a real slick feel, whilst the warp around design for all the plumbing behind the player’s head has been neatly compacted and expertly balanced with the counterweight. It really does ensure good posture and embouchure even from the smallest of performers.

It’s a really responsive instrument that gives so much back to a player willing to work it hard and with its lightweight case it doesn’t break you back (or your student bank balance) either.”


Additional information


Lacquer, Silver Plate


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