Eastman ETB428 Intermediate Traditional Wrap Tenor Trombone with F Attachment

Eastman ETB428 Tenor Trombone Overview

The Eastman ETB428 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 .547-inch large bore with an 8.5-inch handspun yellow brass bell and a rotary valve open-wrap F attachment for a freer-blowing feel, added low-register facility, and access to alternate slide positions that support efficient technique as repertoire becomes more demanding. Finished in clear lacquer, the ETB428 includes a mouthpiece and case for a complete, gig-and-school-ready setup.

Eastman ETB428 Tenor Trombone Specifications

• Instrument type: Tenor Trombone with F Attachment
• Key: Bb (with F attachment)
• Bore: .547 inch
• Valve: Rotary
• Wrap: Open wrap F attachment
• Bell: 8.5 inch handspun yellow 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 ETB428 Tenor Trombone Is For

The Eastman ETB428 is a large-bore Bb/F tenor trombone built for intermediate to advancing players who need an F attachment and a more open, resonant feel than a straight or small-bore student instrument. Its .547-inch bore and 8.5-inch handspun yellow 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 ETB428

Is the Eastman ETB428 appropriate for serious students and pre-professional use?

Yes. The ETB428 is a step-up Bb/F tenor trombone with a .547-inch large 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 ETB428?

The ETB428 includes a mouthpiece and a case.

We are proud to be an authorized Eastman dealer