Eastman Model EBF866S Professional 6-Valve 4/4 F Tuba

Eastman Model EBF866S Professional 6-Valve 4/4 F TubaEastman EBF866S F Tuba Overview The Eastman EBF866S Professional Series is a 6 valve, 4 4 F tuba built for advanced and professional performance, combining a full size wrap with four right hand rotary valves plus two left hand rotary valves for expanded low register control and alternate fingering options. Designed around a . 667 inch to . 820 inch bore and a 16. 5 inch upright yellow brass bell, it is voiced for a clear, centered Germanic sound that

Eastman EBF866S F Tuba Overview

The Eastman EBF866S Professional Series is a 6-valve, 4/4 F tuba built for advanced and professional performance, combining a full-size wrap with four right-hand rotary valves plus two left-hand rotary valves for expanded low-register control and alternate fingering options. Designed around a .667 inch to .820 inch bore and a 16.5 inch upright yellow brass bell, it is voiced for a clear, centered “Germanic” sound that suits orchestral, chamber, and solo repertoire, and it ships with a deluxe wheeled case for practical transport protection.

Eastman EBF866S F Tuba Specifications

• Key: F
• Size: 4/4
• Valves: 6 rotary (4 right-hand + 2 left-hand)
• Bore: .667 inch to .820 inch
• Bell: 16.5 inch upright, yellow brass
• Finish: Silver-plate
• Case: Deluxe case with wheels
• Accessories: Laskey 28K US mouthpiece, valve oil, cleaning cloth

Condition & Setup

Brand new with full manufacturer's warranty. This instrument has been professionally serviced, set up, and play-tested to confirm proper valve action, slide function, response, and intonation across the range.

Who the EBF866S F Tuba Is For

The Eastman EBF866S is a professional 6-valve 4/4 F tuba designed for experienced tuba players who need a secure, consistent low register and flexible fingering options in an F tuba format.

This model is well-suited to orchestral literature, chamber brass, and solo work where clarity and pitch stability matter, and its two left-hand valves (including the sixth valve) are especially valuable for alternate fingerings that help even out response and tone in the low register. Within Eastman’s lineup, the EBF866S is positioned as a top-tier F tuba for players looking for a distinctly Germanic-style core and a rotary-valve feel.

Common Questions About The Eastman EBF866S

What does the sixth valve do on the Eastman EBF866S?

The sixth valve, operated by the left hand, provides additional alternate fingerings that improve pitch stability and help maintain a consistent tone color in the low register.

Is the Eastman EBF866S a good choice for orchestral and solo playing?

Yes. It is an F tuba voiced for a Germanic-style sound that works well for orchestral, chamber, and solo repertoire, with a 4/4 body and rotary valves that support clear articulation and controlled resonance.

What comes included with the Eastman EBF866S?

It includes a Laskey 28K US mouthpiece and a deluxe wheeled case for transport and protection.

We are proud to be an authorized Eastman dealer