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The Bach 42BOF is a professional large-bore tenor trombone from the established Stradivarius 42 family, a series long respected by orchestral, concert, and advanced ensemble players. This configuration combines the Model 42 platform with an open-wrap F attachment and Bach Open Flow rotor, offering an alternative to the conventional rotary-valve versions within the series.
Bach 42BOF Stradivarius Tenor Trombone Specifications
- Key: Bb/F
- Bore Size: .547 inch
- Bell Diameter: 8.5 inches
- Bell Material: One-piece hand-hammered yellow brass
- F Attachment: Open wrap with Open Flow rotor
- Finish: Clear lacquer
- Case: Bach fitted hard case
- Accessories: Bach 6 1/2A mouthpiece and Bach Model 1880 trombone slide cream
- Serial Number: 221162
Condition & Setup
This lightly used instrument is in excellent playing order and has been professionally serviced, set up, and play-tested. It is in very good cosmetic condition, with bright lacquer and only minor wear that includes fine scratches and light scuffing inside the bell flare, along with slight handling marks on some polished trim and receiver surfaces. The included fitted Bach hard case is intact and shows minor use wear.
Who the 42BOF Stradivarius Tenor Trombone Is For
The 42BOF is intended for professional players, advanced students, and educators seeking the centered, substantial tonal concept associated with a large-bore Bach tenor trombone. Its open-wrap F attachment and Open Flow rotor suit musicians who value an open response through the valve register for orchestral, wind ensemble, brass choir, chamber, and solo playing.
Common Questions About the Bach 42BOF
How does the Open Flow rotor distinguish the 42BOF?
The Open Flow rotor is designed to provide a more open transition into the F attachment than a conventional rotary valve while retaining the familiar large-bore Model 42 playing concept.
How does the 42BOF fit within the Bach Model 42 family?
The 42BOF shares the .547-inch bore and 8.5-inch yellow brass bell of the professional Model 42 platform. It differs from the 42B and 42BO by pairing its open-wrap F attachment with the Open Flow rotor.
What musical settings suit the Bach 42BOF?
The 42BOF is designed for professional and advanced orchestral, concert band, brass ensemble, chamber, solo, teaching, and audition applications that call for a full large-bore tenor trombone sound.
We are proud to be an authorized Bach dealer
In stock! Ships within 1-2 business days
Financing available. Apply directly at checkout
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
Bach 42BOF Stradivarius Professional Bb/F Tenor Trombone in Lacquer
Bach 42BOF Stradivarius Tenor Trombone Overview
The Bach 42BOF is a professional large-bore tenor trombone from the established Stradivarius 42 family, a series long respected by orchestral, concert, and advanced ensemble players. This configuration combines the Model 42 platform with an open-wrap F attachment and Bach Open Flow rotor, offering an alternative to the conventional rotary-valve versions within the series.
Bach 42BOF Stradivarius Tenor Trombone Specifications
- Key: Bb/F
- Bore Size: .547 inch
- Bell Diameter: 8.5 inches
- Bell Material: One-piece hand-hammered yellow brass
- F Attachment: Open wrap with Open Flow rotor
- Finish: Clear lacquer
- Case: Bach fitted hard case
- Accessories: Bach 6 1/2A mouthpiece and Bach Model 1880 trombone slide cream
- Serial Number: 221162
Condition & Setup
This lightly used instrument is in excellent playing order and has been professionally serviced, set up, and play-tested. It is in very good cosmetic condition, with bright lacquer and only minor wear that includes fine scratches and light scuffing inside the bell flare, along with slight handling marks on some polished trim and receiver surfaces. The included fitted Bach hard case is intact and shows minor use wear.
Who the 42BOF Stradivarius Tenor Trombone Is For
The 42BOF is intended for professional players, advanced students, and educators seeking the centered, substantial tonal concept associated with a large-bore Bach tenor trombone. Its open-wrap F attachment and Open Flow rotor suit musicians who value an open response through the valve register for orchestral, wind ensemble, brass choir, chamber, and solo playing.
Common Questions About the Bach 42BOF
How does the Open Flow rotor distinguish the 42BOF?
The Open Flow rotor is designed to provide a more open transition into the F attachment than a conventional rotary valve while retaining the familiar large-bore Model 42 playing concept.
How does the 42BOF fit within the Bach Model 42 family?
The 42BOF shares the .547-inch bore and 8.5-inch yellow brass bell of the professional Model 42 platform. It differs from the 42B and 42BO by pairing its open-wrap F attachment with the Open Flow rotor.
What musical settings suit the Bach 42BOF?
The 42BOF is designed for professional and advanced orchestral, concert band, brass ensemble, chamber, solo, teaching, and audition applications that call for a full large-bore tenor trombone sound.
We are proud to be an authorized Bach dealer
Pairs well with
In stock! Ships within 1-2 business days
Financing available. Apply directly at checkout
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99

Bach 42BOF 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.
