Bach 42BO Tenor Trombone Overview

The Bach 42BO Stradivarius professional tenor trombone is a large-bore F-attachment tenor trombone designed for symphonic and solo performance. It features an 8.5-inch one-piece hand-hammered yellow brass bell, a .547-inch large bore, and a traditional wrap F attachment with standard rotary valve. This configuration is known for clear projection, centered response, and a balanced degree of resistance that many advanced players prefer in orchestral settings. The clear lacquer finish adds subtle warmth to the sound, and the chrome-plated nickel silver inner slide tubes support smooth, quick handslide action.

Bach 42BO Tenor Trombone Specifications

• Key: Bb/F
• Finish: Clear lacquer
• Bell Size: 8.5 inches
• Bell Material: One-piece hand-hammered yellow brass
• Bore Size: .547 inch
• Slide: Standard yellow brass slide with chrome-plated nickel silver inner handslide tubes
• Valve: Standard rotary valve
• Case: Original Bach case included
• Accessories: Slide cream, large shank 6.5AL mouthpiece, cleaning rod

Condition & Setup

This instrument was purchased directly from the manufacturer and has seen only extremely light use as a demo or display model. It has just been professionally serviced in our shop, set up, and play-tested. It is in superb condition and includes the original case and original manufacturer's accessories.

Who the 42BO Tenor Trombone Is For

The Bach 42BO tenor trombone is a professional large-bore Bb/F tenor trombone built for players who need a traditional orchestral sound and dependable F-attachment performance. It is well suited to advanced students, conservatory players, working professionals, and serious amateurs seeking an instrument for symphonic literature, large ensemble playing, and solo repertoire.

Within the professional tenor trombone category, the 42BO is distinguished by its combination of a one-piece yellow brass bell, .547 bore, and traditional wrap F attachment. Players can expect a broad, focused sound with strong projection, clear articulation, and smooth slide action. It is an appropriate choice for musicians who want a Bach symphonic setup with familiar resistance and tonal warmth in a lacquer finish.

Common Questions About The Bach 42BO

What is the Bach 42BO?

The Bach 42BO is a professional Bb/F tenor trombone with a .547-inch large bore, 8.5-inch yellow brass bell, and traditional wrap F attachment. It is designed primarily for symphonic and solo playing.

Is the Bach 42BO suitable for professional use?

Yes. The Bach 42BO Stradivarius is a professional-model tenor trombone commonly used by advanced students, conservatory players, and professional trombonists who need a full orchestral sound and reliable F-attachment response.

What comes with this Bach 42BO?

This instrument includes the original case and original manufacturer's accessories, including slide cream and a large shank 6.5AL mouthpiece. It has also been professionally serviced, set up, and play-tested in our shop.

We are proud to be an authorized Bach dealer