Bach 42A Stradivarius Tenor Trombone Overview

The Bach 42 series has long been an established professional large-bore tenor trombone platform, valued by orchestral, wind ensemble, and solo players for its centered tonal concept and projecting character. The 42A combines that familiar Stradivarius design with an open-wrap F attachment and Hagmann valve, giving players an alternative to the conventional rotary-valve configurations in the Model 42 family.

Bach 42A Stradivarius Tenor Trombone Specifications

• Model: 42A Stradivarius
• Key: Bb/F
• Bore Size: .547 inch
• Valve System: Hagmann valve with open-wrap F attachment
• Bell: 8.5-inch one-piece hand-hammered yellow brass
• Finish: Lacquer
• Case: Fitted hard case
• Accessories: Bach 6 1/2 AL mouthpiece and Bach trombone slide cream
• Serial Number: 222073

Condition & Setup

This lightly used trombone is in excellent playing order and very good cosmetic condition. It has been professionally serviced, set up, and play-tested by The Mighty Quinn Brass and Winds. Cosmetic wear includes scattered lacquer loss and oxidation spots inside the bell and on the Hagmann valve housing, localized wear near the bell rim, and light handling marks on reflective surfaces. The fitted case is structurally intact and shows light exterior handling wear.

Who the 42A Stradivarius Tenor Trombone Is For

The 42A is intended for professional players, advanced students, and teachers seeking the established Bach large-bore tenor sound with an open-wrap Hagmann F-attachment system. Its focused core, broad dynamic capacity, and .547-inch design make it well suited to orchestral playing, symphonic band, chamber music, solo work, and other settings requiring a substantial tenor trombone voice.

Common Questions About the Bach 42A

How does the 42A differ from other Bach Model 42 trombones?

The 42A uses an open-wrap F attachment with a Hagmann valve. Models such as the 42B and 42BO use conventional rotary-valve systems with traditional-wrap and open-wrap layouts, respectively.

What does the Hagmann valve contribute to this design?

The Hagmann system provides a direct valve path intended to preserve an open response when the F attachment is engaged. Players often consider this configuration when they want Bach Model 42 tonal character with a different airflow and valve feel from a conventional rotor.

Where does the 42A fit within the Bach trombone lineup?

The 42A is a professional large-bore tenor trombone in the Stradivarius series. It is designed for advanced ensemble and solo applications rather than student or small-bore commercial playing.

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