Eastman Model EBC836S Professional 6/4 CC Tuba

Eastman EBC836S Professional 6/4 CC Tuba Overview

The Eastman EBC836 is a 6/4 size tuba inspired by the legendary York orchestral CC tuba. This large tuba is at home on stage with a symphony orchestra or concert band, in the pit of an opera or ballet orchestra or in small chamber ensembles. This silver-plated tuba features four front-action stainless steel pistons through a semi-stepped bore and a right thumb-operated fifth rotor valve through a .850" bore. 

Eastman EBC836S Professional 6/4 CC Tuba Specifications

• Key of CC, 6/4 size
• .750" bore
• 20" upright bell
• 4 front-action pistons + 5th rotary valve
• Silver plate finish
• Laskey 30H EU mouthpiece
• Deluxe case w/wheels

Condition & Setup

Brand new with full manufacturer's warranty. Professionally set up and play-tested in our shop prior to shipment.

Who the Eastman EBC836S Tuba is for

The Eastman EBC836S CC Tuba is built for serious tubists who need a true orchestral sound with real presence. Designed for advanced students, conservatory players, and working professionals, this large 6/4 CC tuba delivers a broad, dark tonal core with the kind of projection and depth required for symphonic repertoire, opera, and large concert halls. Its five-valve configuration offers excellent flexibility and secure intonation across the full range, making it well suited for demanding orchestral literature. Players who are comfortable handling a full-size instrument and want a classic, powerful CC tuba voice will find the EBC836S an ideal choice for high-level ensemble and professional performance.

Common Questions about the Eastman EBC836S Tuba

What is the difference between a 4/4 and a 6/4 Tuba?

A 4/4 tuba is the standard “full-size” instrument most players learn on and use regularly—it’s balanced, versatile, easier to handle, and works well in everything from school bands to orchestras and chamber settings. A 6/4 tuba, by contrast, is significantly larger and built for maximum breadth and power. It produces a wider, darker, more enveloping sound that fills large concert halls with ease, but it requires more air, physical endurance, and control. In practice, 4/4 tubas are general-purpose instruments, while 6/4 tubas are specialist tools for big orchestral and symphonic repertoire where sheer sonic weight and presence are essential.

What effect does finish have on my tuba's sound?

The sound difference between silver-plated and lacquer tubas is subtle but noticeable to experienced players. Silver plate tends to feel a bit more immediate and lively, with slightly quicker response and a clearer articulation—many players describe the sound as having a bit more “sparkle” or definition. Lacquer, on the other hand, is often perceived as a touch warmer and rounder, with a smoother, more blended sound and a slightly softer edge to attacks. That said, the player, the instrument’s design, and mouthpiece choice have a far greater impact than the finish alone—finish differences are more about feel and nuance than a dramatic change in tone.

Why does the EBC836S have 5 valves?

The additional 5th rotary valve expands the lower range and improves intonation in challenging passages, giving players more flexibility and accuracy.

We are proud to be an authorized Eastman dealer

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We want you to be happy and satisfied with your purchase, and we offer an unconditional 30 day return policy. If you are unhappy with your item for any reason, just return it for a full refund or full credit towards an exchange. (Reeds and other consumables are non-returnable once opened.)

We warranty every item we sell to be free of mechanical defects. If you find an issue with your purchase, please contact us. We will either reimburse you to have any minor repairs completed by your local repair shop, or we will send you a label to cover all return postage charges so that we can either repair your instrument, exchange your instrument, or issue you a refund for your instrument. We stand behind our products, and we truly want you to be happy.

Please note that if you simply change your mind about the purchase of an item - if you find that it's just not the one for you - you are still entitled to a full refund. We do not routinely charge a restocking fee; however, you will be responsible for the expense involved in shipping the item back to us if you have not purchased free returns through Redo at checkout. (Redo is available for domestic sales in the US only - international customers will be responsible for return shipping). Upon receipt of your return, our technicians will go over the instrument to ensure everything is in the same condition in which it was sold. Damage to the instrument, missing accessories, or unauthorized alterations/repairs may affect your refund. Your refund will be processed within 5 business days of our receipt of your return.

If more than five returns are requested within a calendar year, a 20% restocking fee will be assessed for every return moving forward for that calendar year.

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