Jupiter XO 1236RL-O Professional F-Attachment Trombone Overview

The Jupiter XO 1236RL-O is a professional large-bore Bb/F tenor trombone with an open-wrap F attachment, rose brass bell, and lacquer finish. Built for advanced and professional players, it combines a .547 inch primary bore with a .563 inch F-attachment bore for a broad, centered response across the full register. The 8.5 inch hand-crafted rose brass bell supports a darker tonal profile, while the open-wrap rotary valve design provides an open-feeling trigger register. Three interchangeable leadpipes allow the player to tailor resistance and response to different mouthpieces, repertoire, and ensemble settings.

Jupiter XO 1236RL-O Professional F-Attachment Trombone Specifications

• Key: Bb/F
• Bore: .547 inch primary bore; .563 inch F-attachment bore
• Leadpipe: Three interchangeable leadpipes
• Bell: 8.5 inch hand-crafted rose brass bell
• Material: Yellow brass body with rose brass bell
• Handslide: Standard-weight slide with brass outer slide and chrome-plated inner slide
• F Attachment: Open wrap with standard rotary valve and nickel silver handslide crook
• Finish: Lacquer
• Case: Original case included
• Accessories: Original accessories included, including slide cream and 6.5AL mouthpiece

Condition & Setup

This is an open-box instrument purchased directly from the manufacturer. It has seen extremely light use as a demo or display model and remains in superb playing condition. Our shop has professionally serviced, set up, and play-tested the trombone to confirm slide action, valve function, response, and overall playing condition before listing.

Who the 1236RL-O Professional F-Attachment Trombone Is For

The Jupiter XO 1236RL-O is a professional Bb/F large-bore tenor trombone designed for advanced students, collegiate players, freelance musicians, and professional trombonists who need a versatile orchestral and large-ensemble instrument. Its rose brass bell contributes a dark tonal character, while the open F-attachment wrap helps keep the trigger register responsive and less resistant than many traditional-wrap designs.

This model is well suited to players who want a professional F-attachment trombone with customizable leadpipe response, a large-shank mouthpiece receiver, and a broad sound appropriate for symphonic band, orchestra, brass ensemble, pit work, and serious studio study. Within its category, the 1236RL-O is distinguished by its combination of open-wrap valve layout, rose brass bell, included leadpipe options, and accessible professional-level specification set.

Common Questions About the Jupiter XO 1236RL-O

Is the Jupiter XO 1236RL-O suitable for professional use?

Yes. The Jupiter XO 1236RL-O is built as a professional large-bore Bb/F tenor trombone with a .547 inch bore, open-wrap F attachment, rose brass bell, large-shank receiver, and interchangeable leadpipes. These features make it appropriate for advanced and professional performance contexts.

What kind of sound does the rose brass bell produce?

The rose brass bell supports a darker and warmer tonal profile than a typical yellow brass bell, while still maintaining projection and clarity. This makes the instrument a strong option for players seeking a broad orchestral-style sound.

Why are three interchangeable leadpipes useful on this trombone?

Interchangeable leadpipes let the player adjust the feel of the instrument, including resistance, articulation response, and blow. This is useful for advanced players who use different mouthpieces or need to adapt the trombone for orchestral, band, chamber, or commercial settings.

We are proud to be an authorized Jupiter XO dealer