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Yamaha YCL-631II Professional Eb Alto Clarinet - Silver-plated Keys , $9,689.99 - Add to Cart Skip to Product Information

Yamaha YCL-631II Professional Eb Alto Clarinet - Silver-plated Keys

Eb Alto Clarinet with Grenadilla Body, Silver-plated Nickel Silver Keys, 4C Mouthpiece, and Case
Be the first to review Item ID: YCL631II
Yamaha YCL-631II Professional Eb Alto Clarinet - Silver-plated Keys
Yamaha YCL-631II Professional Eb Alto Clarinet - Silver-plated Keys

We Can Get It!

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

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Yamaha YCL-631II Professional Eb Alto Clarinet - Silver-plated Keys
We Can Get It!

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

Professional Alto Clarinet with Top-notch Appointments

This article was Written By

Our Product Research Team

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The Yamaha YCL-631II Professional Eb Alto Clarinet is diligently crafted to tackle a wide range of orchestral repertoire. Combining the richness and warmth of grenadilla with an extended low range, the YCL-631II is everything you want in a professional-class instrument. It features stunning silver-plated keywork with undercut straight tone holes to provide exceptional responsiveness, rock-solid intonation, and a balanced tone across the full range of the instrument. The YCL-631II’s bell is constructed from durable brass with gorgeous silver plating that adds an undeniable brilliance to the clarinet’s warm sound — a feature musicians at Sweetwater appreciate. Factor in luxurious leather Pisoni key pads, and you’ll get a spectacular instrument that is well suited for orchestral clarinetists and otherwise curious players.

Seasoned grenadilla body and sculpted silver-plated keys

Grenadilla is the material of choice for professional-grade clarinets due to its dense grain, moisture-repellent qualities, eye-catching look, and warm tone. As such, the YCL-631II is made from the highest-quality grenadilla, which is seasoned for improved performance. Yamaha has given the YCL-631II a comfortable 19-key Boehm system with a thick key plating for added expressiveness. The keys are fitted with white leather pads to provide you with a dynamic feel, a rich tonality, and buzz-free playing. Moreover, the YCL-631II sports straight tone holes with a tapered undercut to ensure optimum intonation and a uniform response up and down the instrument.

Revised tone hole positioning

As a second-generation model of the YCL-631, Yamaha has made an important revision to the clarinet's design: a repositioned upper-joint register key. As a result, the YCL-631II offers improved pitch accuracy in the high register and gives players greater control and stability while playing.

Yamaha Custom Series brass and woodwinds

The pinnacle of Yamaha’s production brass and woodwinds, the Yamaha Custom Series comprises a stunning collection of professional-grade instruments. Meticulously crafted using a combination of hi-tech manufacturing techniques and old-world hand finishing, Yamaha Custom Series brass and woodwinds present players with a sublime playing experience, top-notch tone, and heirloom-quality construction. When you require an instrument that shines in professional settings, with a gorgeous look and a full expressive range, turn to Yamaha Custom Series brass and woodwinds.

Yamaha YCL-631II Eb Alto Clarinet Features:

  • Professional Eb alto clarinet with silver-plated keys
  • Boehm fingering system with 19 keys, including 7 covered finger holes
  • Seasoned grenadilla wood body provides a rich, warm sound
  • Silver-plated brass bell adds brilliance to your sound
  • Straight tone holes with tapered undercut ensure even intonation and heightened responsiveness
  • Leather Pisoni key pads improve airflow
  • Comes equipped with an optional peg for added support while playing
  • Includes a Yamaha 4C mouthpiece and new case

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.