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The Bach 42A Stradivarius is a professional large-bore tenor trombone built around the established Model 42 design, a series long respected by orchestral, wind ensemble, and solo players. This configuration combines the familiar Bach tonal concept with an open-wrap F attachment and Hagmann valve, giving musicians an alternative to the traditional rotary-valve Model 42 while retaining the centered character and projection associated with the Stradivarius line.
Bach 42A Stradivarius Tenor Trombone Specifications
- Key: Bb/F
- Bore Size: .547 inch
- Bell Diameter: 8.5 inches
- Bell Construction: One-piece hand-hammered yellow brass
- F Attachment: Open wrap with Hagmann valve
- Finish: Clear lacquer
- Case: Fitted Bach hard case
- Accessories: Bach 6 1/2AL mouthpiece and Bach slide cream
- Serial Number: 222274
Condition & Setup
This pre-owned trombone is in excellent playing order and has been professionally serviced, set up, and play-tested. The lacquer remains bright and glossy, with light scratches, fine polishing lines, handling marks, and localized cosmetic spotting around the attachment area. The fitted Bach case has light exterior scuffs and edge wear from normal handling.
Who the 42A Stradivarius Tenor Trombone Is For
The 42A is intended for professional players, advanced students, and teachers seeking a large-bore symphonic tenor with a centered tonal core, strong projection, and an open-wrap Hagmann F-attachment system. It is particularly well suited to orchestral, wind ensemble, chamber, solo, and conservatory work where a substantial sound and dependable F-register access are priorities.
Common Questions About the Bach 42A
How does the Hagmann valve differ from a traditional rotary valve?
The Hagmann system uses a different internal airflow path than a conventional rotor. Many players select this configuration for its open response and continuity when moving between the open instrument and the F attachment.
How does the 42A fit within the Bach Model 42 family?
The 42A retains the professional .547-inch large-bore and 8.5-inch yellow-brass bell concept of the Model 42 family while adding an open-wrap Hagmann valve section. It is designed for players who prefer that valve architecture over Bach configurations equipped with a conventional rotor.
What musical settings suit the Bach 42A?
The 42A is most closely associated with orchestral and symphonic playing, but its focused projection and broad dynamic range also support wind ensemble, chamber, solo, teaching, and audition use.
We are proud to be an authorized Bach dealer
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
Bach 42A Stradivarius Professional Bb/F Tenor Trombone in Lacquer
Bach 42A Stradivarius Tenor Trombone Overview
The Bach 42A Stradivarius is a professional large-bore tenor trombone built around the established Model 42 design, a series long respected by orchestral, wind ensemble, and solo players. This configuration combines the familiar Bach tonal concept with an open-wrap F attachment and Hagmann valve, giving musicians an alternative to the traditional rotary-valve Model 42 while retaining the centered character and projection associated with the Stradivarius line.
Bach 42A Stradivarius Tenor Trombone Specifications
- Key: Bb/F
- Bore Size: .547 inch
- Bell Diameter: 8.5 inches
- Bell Construction: One-piece hand-hammered yellow brass
- F Attachment: Open wrap with Hagmann valve
- Finish: Clear lacquer
- Case: Fitted Bach hard case
- Accessories: Bach 6 1/2AL mouthpiece and Bach slide cream
- Serial Number: 222274
Condition & Setup
This pre-owned trombone is in excellent playing order and has been professionally serviced, set up, and play-tested. The lacquer remains bright and glossy, with light scratches, fine polishing lines, handling marks, and localized cosmetic spotting around the attachment area. The fitted Bach case has light exterior scuffs and edge wear from normal handling.
Who the 42A Stradivarius Tenor Trombone Is For
The 42A is intended for professional players, advanced students, and teachers seeking a large-bore symphonic tenor with a centered tonal core, strong projection, and an open-wrap Hagmann F-attachment system. It is particularly well suited to orchestral, wind ensemble, chamber, solo, and conservatory work where a substantial sound and dependable F-register access are priorities.
Common Questions About the Bach 42A
How does the Hagmann valve differ from a traditional rotary valve?
The Hagmann system uses a different internal airflow path than a conventional rotor. Many players select this configuration for its open response and continuity when moving between the open instrument and the F attachment.
How does the 42A fit within the Bach Model 42 family?
The 42A retains the professional .547-inch large-bore and 8.5-inch yellow-brass bell concept of the Model 42 family while adding an open-wrap Hagmann valve section. It is designed for players who prefer that valve architecture over Bach configurations equipped with a conventional rotor.
What musical settings suit the Bach 42A?
The 42A is most closely associated with orchestral and symphonic playing, but its focused projection and broad dynamic range also support wind ensemble, chamber, solo, teaching, and audition use.
We are proud to be an authorized Bach dealer
Pairs well with
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99

Bach 42A Stradivarius Professional Bb/F Tenor Trombone in Lacquer
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders valued over $99 ship via FedEx 2-Day within the U.S. and via DHL internationally. A physical address (no P.O. Boxes) and signature are required. Smaller accessories ship via USPS (2–5 day service) and do not require a signature if valued under $99. Please see our FAQ for additional details.
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Return Policy
We offer an unconditional 30-day return policy to ensure you’re completely satisfied. If you’re unhappy for any reason, return the item for a full refund or full exchange credit (reeds and other consumables are non-returnable once opened). Every instrument we sell is guaranteed to be free of mechanical defects—if an issue arises, contact us and we’ll either reimburse a local repair or provide a prepaid return label for repair, exchange, or refund. If you simply change your mind, you may still return the item for a full refund, but return shipping costs are the customer’s responsibility unless free returns were purchased through Redo at checkout. Please see our FAQ for additional details.
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Shop Warranty:
Brand new items are covered by the full manufacturer’s warranty unless otherwise noted (see the individual maker for details). Open box/refurbished, used, and vintage items include a two-year warranty serviced by our in-house repair shop, and we guarantee every instrument will be free of mechanical defects. Warranty coverage does not include damage from accident, misuse, negligence, improper operation, unauthorized alterations or removed serial numbers, normal wear and routine maintenance, environmental damage (including perspiration, corrosion, or extreme temperature and humidity), lacquer or plating wear, or consumable parts such as springs, pads, and felts. Please see our FAQ for additional details.
