Bach Stradivarius 42BOF Tenor Trombone Overview
The Bach Stradivarius 42BOF is a professional Bb/F tenor trombone that updates the classic Bach 42 concept with an Open Flow valve and bell-free bracing for a more immediate response and a clear, projecting sound. Built around the traditional 42 bell design, the 42BOF is intended to offer flexible tone color while keeping the feel and balance that working orchestral and commercial players expect from a large-bore Bach.
Bach Stradivarius 42BOF Tenor Trombone Specifications
- Key: Bb/F
- Bore Size: .547
- Bell Diameter: 8.5 inches
- Bell Material: Yellow brass
- Finish: Lacquer
- Slide: Standard slide
- Valve: Open Flow valve, open wrap
- Case: Original Bach hard case
- Accessories: Bach 6.5AL mouthpiece, slide cream, original accessories
- Serial number: 220366
Condition & Setup
This instrument is in superb condition and has been used only in demo situations, with no private ownership. It has been professionally serviced in our shop, set up, and play-tested. Includes the original case and all original accessories. We are an authorized Bach dealer.
Who the 42BOF Tenor Trombone Is For
The Bach Stradivarius 42BOF is a large-bore professional Bb/F tenor trombone designed for players who want the traditional Bach 42 bell sound with a more open-feeling valve section and faster response.
Developed in collaboration with Jay Friedman of the Chicago Symphony, the 42BOF uses bell-free bracing so the bell can vibrate more freely, which supports a quicker response and added clarity and projection. The European-style Open Flow valve is designed to keep the low register notably open while maintaining strong response and stability in the high register, making this model a practical choice for orchestral repertoire, demanding symphonic band parts, and players who rely on quick changes in tone color.
Common Questions About The Bach Stradivarius 42BOF
What does “Open Flow” mean on the Bach 42BOF?
On the 42BOF, Open Flow refers to Bach’s European-style rotary valve design and open-wrap layout intended to reduce resistance through the F-attachment, giving the low register a more open feel while preserving clean response above the staff.
Is the Bach 42BOF suitable for professional orchestral playing?
Yes. The 42BOF is a professional Bb/F large-bore tenor trombone built around the traditional Bach 42 bell concept, with design input from Jay Friedman, and is commonly selected for orchestral and other high-demand professional settings where clarity, projection, and flexible tone color are required.
What’s included with this specific 42BOF?
This trombone includes the original Bach case and original accessories, including slide cream and a Bach 6.5AL mouthpiece.
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 Model 42BOF Stradivarius Professional Tenor Trombone
Bach Stradivarius 42BOF Tenor Trombone Overview
The Bach Stradivarius 42BOF is a professional Bb/F tenor trombone that updates the classic Bach 42 concept with an Open Flow valve and bell-free bracing for a more immediate response and a clear, projecting sound. Built around the traditional 42 bell design, the 42BOF is intended to offer flexible tone color while keeping the feel and balance that working orchestral and commercial players expect from a large-bore Bach.
Bach Stradivarius 42BOF Tenor Trombone Specifications
- Key: Bb/F
- Bore Size: .547
- Bell Diameter: 8.5 inches
- Bell Material: Yellow brass
- Finish: Lacquer
- Slide: Standard slide
- Valve: Open Flow valve, open wrap
- Case: Original Bach hard case
- Accessories: Bach 6.5AL mouthpiece, slide cream, original accessories
- Serial number: 220366
Condition & Setup
This instrument is in superb condition and has been used only in demo situations, with no private ownership. It has been professionally serviced in our shop, set up, and play-tested. Includes the original case and all original accessories. We are an authorized Bach dealer.
Who the 42BOF Tenor Trombone Is For
The Bach Stradivarius 42BOF is a large-bore professional Bb/F tenor trombone designed for players who want the traditional Bach 42 bell sound with a more open-feeling valve section and faster response.
Developed in collaboration with Jay Friedman of the Chicago Symphony, the 42BOF uses bell-free bracing so the bell can vibrate more freely, which supports a quicker response and added clarity and projection. The European-style Open Flow valve is designed to keep the low register notably open while maintaining strong response and stability in the high register, making this model a practical choice for orchestral repertoire, demanding symphonic band parts, and players who rely on quick changes in tone color.
Common Questions About The Bach Stradivarius 42BOF
What does “Open Flow” mean on the Bach 42BOF?
On the 42BOF, Open Flow refers to Bach’s European-style rotary valve design and open-wrap layout intended to reduce resistance through the F-attachment, giving the low register a more open feel while preserving clean response above the staff.
Is the Bach 42BOF suitable for professional orchestral playing?
Yes. The 42BOF is a professional Bb/F large-bore tenor trombone built around the traditional Bach 42 bell concept, with design input from Jay Friedman, and is commonly selected for orchestral and other high-demand professional settings where clarity, projection, and flexible tone color are required.
What’s included with this specific 42BOF?
This trombone includes the original Bach case and original accessories, including slide cream and a Bach 6.5AL mouthpiece.
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 Model 42BOF Stradivarius Professional Tenor Trombone
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, 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.