Eastman ETB428MG Tenor Trombone Overview
The Eastman ETB428MG is a Bb tenor trombone with an F attachment designed as a step-up instrument for advancing players who want professional-style response and features at an intermediate price point. It pairs a .525-inch medium bore with an 8.5-inch handspun gold brass bell and a rotary valve open-wrap F attachment for a balanced timbre, added low-register facility, and access to alternate slide positions that support efficient technique as repertoire becomes more demanding. Finished in clear lacquer, the ETB428MG includes a mouthpiece and case for a complete, gig-and-school-ready setup.
Eastman ETB428MG Tenor Trombone Specifications
- Instrument type: Tenor Trombone with F Attachment
- Key: Bb (with F attachment)
- Bore: .525 inch
- Valve: Rotary
- Wrap: Open wrap F attachment
- Bell: 8.5 inch handspun gold brass
- Finish: Clear lacquer
- Case: Included
- Accessories: Mouthpiece included
Condition & Setup
Brand new with manufacturer's warranty. It has been professionally inspected, serviced as needed, set up, and play-tested by our brass technicians prior to shipment.
Who the ETB428MG Tenor Trombone Is For
The Eastman ETB428MG is a large-bore Bb/F tenor trombone built for intermediate to advancing players who need an F attachment and a more balanced feel than a straight or small-bore student instrument. Its .525-inch bore and 8.5-inch handspun gold brass bell support strong projection and efficient airflow, while the rotary valve open-wrap design reduces the number of tight bends in the tubing to help minimize blow resistance.
This model is well-suited for concert band, wind ensemble, orchestral training, and players preparing for auditions where low-register clarity and alternate slide positions matter. The clear lacquer finish provides a protective, low-maintenance exterior, and the included mouthpiece and case make it a practical upgrade for students moving into more demanding literature.
Common Questions About The Eastman ETB428MG
Is the Eastman ETB428MG appropriate for serious students and pre-professional use?
Yes. The ETB428MG is a step-up Bb/F tenor trombone with a .525-inch medium bore and rotary-valve F attachment, making it suitable for advancing students who need professional-style airflow, response, and low-register facility.
What does an open-wrap F attachment change compared to a closed wrap?
An open-wrap F attachment uses a more direct tubing path with fewer tight bends, which can reduce wind resistance. It also provides alternate slide positions and extended low-range options that are commonly required in more advanced repertoire.
What is included with the Eastman ETB428MG?
The ETB428MG includes a mouthpiece and a case.
We are proud to be an authorized Eastman 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
Eastman ETB428MG Intermediate Open Wrap Tenor Trombone with F Attachment
Eastman ETB428MG Tenor Trombone Overview
The Eastman ETB428MG is a Bb tenor trombone with an F attachment designed as a step-up instrument for advancing players who want professional-style response and features at an intermediate price point. It pairs a .525-inch medium bore with an 8.5-inch handspun gold brass bell and a rotary valve open-wrap F attachment for a balanced timbre, added low-register facility, and access to alternate slide positions that support efficient technique as repertoire becomes more demanding. Finished in clear lacquer, the ETB428MG includes a mouthpiece and case for a complete, gig-and-school-ready setup.
Eastman ETB428MG Tenor Trombone Specifications
- Instrument type: Tenor Trombone with F Attachment
- Key: Bb (with F attachment)
- Bore: .525 inch
- Valve: Rotary
- Wrap: Open wrap F attachment
- Bell: 8.5 inch handspun gold brass
- Finish: Clear lacquer
- Case: Included
- Accessories: Mouthpiece included
Condition & Setup
Brand new with manufacturer's warranty. It has been professionally inspected, serviced as needed, set up, and play-tested by our brass technicians prior to shipment.
Who the ETB428MG Tenor Trombone Is For
The Eastman ETB428MG is a large-bore Bb/F tenor trombone built for intermediate to advancing players who need an F attachment and a more balanced feel than a straight or small-bore student instrument. Its .525-inch bore and 8.5-inch handspun gold brass bell support strong projection and efficient airflow, while the rotary valve open-wrap design reduces the number of tight bends in the tubing to help minimize blow resistance.
This model is well-suited for concert band, wind ensemble, orchestral training, and players preparing for auditions where low-register clarity and alternate slide positions matter. The clear lacquer finish provides a protective, low-maintenance exterior, and the included mouthpiece and case make it a practical upgrade for students moving into more demanding literature.
Common Questions About The Eastman ETB428MG
Is the Eastman ETB428MG appropriate for serious students and pre-professional use?
Yes. The ETB428MG is a step-up Bb/F tenor trombone with a .525-inch medium bore and rotary-valve F attachment, making it suitable for advancing students who need professional-style airflow, response, and low-register facility.
What does an open-wrap F attachment change compared to a closed wrap?
An open-wrap F attachment uses a more direct tubing path with fewer tight bends, which can reduce wind resistance. It also provides alternate slide positions and extended low-range options that are commonly required in more advanced repertoire.
What is included with the Eastman ETB428MG?
The ETB428MG includes a mouthpiece and a case.
We are proud to be an authorized Eastman 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
Eastman ETB428MG Intermediate Open Wrap Tenor Trombone with F Attachment
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.