Eastman ETB848 Professional Bass Trombone in Lacquer SN S2504046

Eastman ETB848 Bass Trombone Overview

The Eastman ETB848 is a professional bass trombone designed for players who need the flexibility of independent valve attachments within a familiar rotary-valve format. Its open-wrap architecture, interchangeable leadpipes, and full-size bass trombone design make it a practical option for orchestral, wind ensemble, brass band, and studio work where a centered low register and adaptable response are important.

Eastman ETB848 Bass Trombone Specifications

• Key: Bb with independent F and Gb attachments
• Bore Size: .562 inch
• Bell Diameter: 9.5 inches
• Bell Material: Two-piece yellow brass
• Valve Configuration: Two independent rotary valves
• Handslide: Yellow brass with nickel-silver crook
• Case: S.E. Shires-branded fitted soft-sided case
• Accessories: Mouthpiece, two extra leadpipes, valve oil, trombone slide lubricant, tuning-slide lubricant, and polishing cloth
• Serial Number: S2504046

Condition & Setup

This used bass trombone is in excellent playing order and has been professionally serviced, set up, and play-tested. The bell, tubing, braces, dual-valve section, and hand slide are in very good cosmetic condition, with a bright lacquered surface and distinct floral bell engraving. The fitted case and listed accessories are included.

Who the ETB848 Bass Trombone Is For

The ETB848 is intended for professional players, advanced students, and serious ensemble musicians seeking a full-size bass trombone with independent valve flexibility. Its .562-inch bore and 9.5-inch bell support a broad, centered bass trombone voice, while the interchangeable leadpipes allow the player to explore different response and resistance characteristics. It is well suited to orchestral playing, concert bands, brass ensembles, commercial work, and advanced academic programs.

Common Questions About the Eastman ETB848

What does the independent F and Gb valve configuration offer?

Each rotary valve can be engaged independently, giving the player multiple tubing combinations and greater flexibility for alternate positions and low-register passages.

What is the purpose of the interchangeable leadpipes?

Interchangeable leadpipes allow players to compare differences in resistance, articulation, and response. This instrument includes two extra leadpipes in addition to the installed leadpipe.

How does the ETB848 differ from the ETB849?

The ETB848 uses independent rotary valves, while the related ETB849 uses axial-flow valves. The choice between them centers on the player's preference for valve response, airflow, and mechanical feel.

We are proud to be an authorized Eastman dealer