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Conn CEU511S Euphonium - Silver Plated, Non-compensating , $4,929.00 - Add to Cart Skip to Product Information

Conn CEU511S Euphonium - Silver Plated, Non-compensating

Bb Euphonium with 11" Brass Bell, 0.581"/0.601" Bore, Nickel-silver Leadpipe, and 4 In-line Valves - Silver Plated
Item ID: CEU511S
Conn CEU511S Euphonium - Silver Plated, Non-compensating
We Can Get It!

While this isn't an item we normally stock, we can still get it due to our great relationship with Conn. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated December 2026

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Conn CEU511S Euphonium - Silver Plated, Non-compensating
We Can Get It!

While this isn't an item we normally stock, we can still get it due to our great relationship with Conn. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated December 2026

Focused Euphonium Sonics for the Advancing Performer

This article was Written By

Our Product Research Team

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Designed for advancing players looking to move beyond their student horns, the Conn CEU511S is a stellar Bb euphonium primed for resplendent low-brass power. From the large shank receiver to the prominent bell flare, the CEU511S is replete with performance-focused features at your fingertips. Responsive piston valves glide through technical passages, while thoughtfully positioned slide rings give you precise intonation control throughout the horn. What’s more, low-brass scholars at Sweetwater confidently attest that the high-caliber craftsmanship of the CEU511S makes it an excellent choice for doublers needing a reliable euphonium for orchestral, musical, and brass band versatility. With a shining silver-plated finish, Conn’s CEU511S is a worthwhile companion for euphonium players on any stage.

Ready for any stage

The CEU511S's nickel-silver leadpipe resists corrosion and pairs well with a large shank euphonium mouthpiece for a solid tonal foundation. Building on this, the CEU511S also features a 0.581-inch/0.601-inch dual-bore design across four in-line piston valves, generating an even response with solid low-end support at any tempo or technical complexity. Sonorous sonics abound with this euphonium, which proudly sports an 11-inch bell capable of layering into low-brass sections and soaring above the ensemble in equal measure. The CEU511S is outfitted with a resilient hardshell ABS case and comes ready to play with an approachable large shank Bach 5G mouthpiece.

Superb intonation throughout

The CEU511S is a non-compensating euphonium that retains much of the breadth of sound and intonation acumen of its heavier, compensating counterparts. A spring-loaded third tuning slide kick facilitates instant intonation adjustment. Meanwhile, an extended-pull fourth valve tuning slide rounds out low-end intonation while simultaneously extending the CEU511S’s range to a centered and comfortable low B. Each tuning slide utilizes a solid finger ring for steady adjustments before or during performances.

About C.G. Conn

Since its founding in 1915 by Charles Gerald Conn in Elkhart, Indiana, the C.G. Conn brand has been synonymous with high-quality brass instruments. Even today, the company's most popular models — the Conn 8D French horn, 88H trombone, 62H bass trombone, 52BSP trumpet, and 1FR flugelhorn — command respect. At Sweetwater, we stand behind Conn horns, given their tremendous response, outstanding projection, and one-of-a-kind sonic qualities.

Conn CEU511S Features:

  • Non-compensating Bb euphonium designed for advancing low-brass players and professional doublers
  • Robust low-brass sonics abound from the 11-in. bell
  • 0.581-in./0.601-in. dual bore delivers an even response and steady airflow
  • Nickel-silver leadpipe is resistant to corrosion and compatible with a large shank receiver
  • On-the-fly intonation adjustment courtesy of the spring-loaded 3rd tuning slide kick
  • Extra-long pull on 4th tuning slide enhances low-end intonation and extends range comfortably to low B
  • Smooth, even action across 4 in-line piston valves
  • Includes a hardshell case and a large shank Bach 5G mouthpiece

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.