Jupiter XO 1236RL-T Professional Tenor Trombone in Lacquer SN CB05881

Jupiter XO 1236RL-T Tenor Trombone Overview

The XO 1236RL-T is a professional large-bore Bb/F tenor trombone built for players who want an orchestral-style instrument with a rose brass bell, open-wrap F attachment, and Thru-Flo valve design. XO's professional trombones are designed for advanced students, serious ensemble players, and working musicians who need a responsive large-bore tenor with a refined feel and dependable projection. This instrument is offered in lacquer with serial number CB05881.

Jupiter XO 1236RL-T Tenor Trombone Specifications

• Instrument Type: Professional tenor trombone
• Key: Bb/F
• Model: 1236RL-T
• Bore Size: .547 inch large bore with .563 inch F-section
• Bell: 8.5 inch rose brass bell
• Valve: Thru-Flo valve, which is an axial flow (Thayer-style) valve
• Finish: Clear lacquer
• Case: XO Designer Series case
• Accessories: Large-shank 6 1/2AL mouthpiece, valve oil, slide cream, polish cloth
• Serial Number: CB05881

Condition & Setup

This open-box XO 1236RL-T is in excellent playing order and has been professionally inspected, set up, and play-tested by The Mighty Quinn Brass and Winds. The instrument presents very clean overall with a glossy lacquer finish. Light surface scratches and handling scuffs are present on the slide and receiver areas, consistent with careful open-box handling.

Who the 1236RL-T Tenor Trombone Is For

The 1236RL-T is suited to advancing and professional tenor trombonists who want a large-bore Bb/F instrument for concert band, orchestra, wind ensemble, college study, and serious ensemble playing. The rose brass bell gives this model a warm-centered tonal direction, while the open-wrap F attachment and Thru-Flo valve design are intended to support an open feel through the valve register. It is a strong fit for players who prefer a modern professional tenor trombone with flexible response and a full symphonic voice.

Common Questions About the XO 1236RL-T

How does the 1236RL-T fit within the XO trombone lineup?

The 1236RL-T sits in XO's professional tenor trombone line as a large-bore Bb/F model with a rose brass bell, open-wrap F attachment, and Thru-Flo valve. It is built for players who need a serious ensemble instrument rather than a student or step-up trombone.

What does the Thru-Flo valve design offer a tenor trombone player?

The Thru-Flo valve design is intended to provide a more open feel through the F attachment than a conventional rotor layout. For players who use the valve register frequently, that can make slurs, low-register passages, and technical valve work feel more connected.

Why choose a rose brass bell on a large-bore tenor trombone?

A rose brass bell is often chosen by players seeking a warmer, broader tonal color while retaining the focus needed for large ensemble playing. On a large-bore Bb/F tenor, that tonal character can be useful for orchestral, wind ensemble, and lyrical solo work.

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