XO 1236RL-T B-flat/F tenor trombone

The XO 1236 provides players with a superb response and a sound that can be sculpted to perfection in any register. Its rich, commanding tone immediately establishes a link between player and audience, or rounds out the harmonious depth of a professional ensemble.

• Clear lacquer finish
• Bore: large, 0.547 in. (13.89 mm)
• Bell diameter: 8.5 in. (216 mm)
• Hand-hammered rose brass bell
• Yellow brass outer handslide
• Open-wrap F attachment
• Thayer valve*
• Sprung water key
• Case included

* The axial flow valve began development in the late 1970s as a means of reducing the distortion to the air column created by traditional rotary valves, particularly on trombones. It was the brainchild of engineer Orla Ed Thayer (1920–2009), whose invention (commonly known as the Thayer valve) was first put to the test on a Bach 42B. His revolutionary idea led to further developments in valve technology.