S.E. Shires STBK30 K-Series Large Bore Tenor Trombone Overview

The S.E. Shires STBK30 K-Series is a large-bore tenor trombone with F-attachment built for players who need the broad sound, stable response, and flexibility expected from a .547-inch Bb/F instrument. Its 8.5-inch two-piece hand-hammered yellow brass bell supports a clear tonal center with warmth and projection, while the open-wrap F-attachment with rotary valve maintains even response through the valve register. The standard-weight yellow brass slide and nickel-silver wide crook contribute to clean articulation and smooth movement across registers, making this model well suited to advancing players, university musicians, and serious performers working in concert band, orchestra, brass ensemble, and commercial settings.

S.E. Shires STBK30 K-Series Large Bore Tenor Trombone Specifications

• Instrument type: Tenor trombone with F-attachment
• Key: Bb/F
• Bore: .547-inch
• Bell: 8.5-inch, two-piece, hand-hammered yellow brass with soldered bead
• Valve: Rotary F valve with open-wrap F-attachment
• Slide material: Standard-weight yellow brass outer slide with nickel-silver wide crook
• Finish: Clear lacquer
• Case: S.E. Shires backpack case
• Accessories: 5.6AL large shank mouthpiece and Ultra-Pure maintenance kit
• Serial number: S2404954

Condition & Setup

This instrument was purchased directly from the manufacturer and shows extremely light use. It has recently been professionally serviced in our shop, set up, and play-tested to ensure proper mechanical function and consistent performance.

Who the STBK30 K-Series Large Bore Tenor Trombone Is For

The STBK30 K-Series Large Bore Tenor Trombone is a .547-inch Bb/F tenor trombone designed for players who want a modern Shires-style feel and response in a versatile performance instrument. It is a strong fit for advancing students, college-level musicians, and working players who need a dependable large-bore trombone for concert band, orchestra, brass ensemble, and commercial playing.

Within the large-bore tenor trombone category, the STBK30 stands out for its 8.5-inch hand-hammered yellow brass bell, which helps produce a clear, warm tonal center with solid projection, and for its open-wrap rotary F-attachment, which supports smooth transitions and consistent resistance through the valve register. The responsive slide design with nickel-silver wide crook helps maintain clean articulation and stable intonation when moving between registers.

Common Questions About The S.E. Shires STBK30

Is the S.E. Shires STBK30 suitable for professional use?

Yes. The STBK30 is a large-bore Bb/F tenor trombone with an 8.5-inch hand-hammered yellow brass bell and open-wrap rotary F-attachment, which is a standard professional and pre-professional configuration for concert band, orchestral, and ensemble playing.

What does large bore mean on the STBK30?

Large bore refers to the .547-inch slide bore size. On a tenor trombone, this size is commonly used for orchestral and concert band playing because it supports a broader dynamic range, strong projection, and a stable, focused sound.

What is included with this STBK30?

This listing includes the original S.E. Shires backpack case, a 6.5AL large shank mouthpiece, and an Ultra-Pure maintenance kit.

We are proud to be an authorized S.E. Shires dealer