D'Addario KS511 Kaplan Cello A String - 4/4 Scale Medium Tension

Name: D'Addario KS511 Kaplan Cello A String - 4/4 Scale Medium Tension
Brand: D'Addario
Rating: 3.5 (2 reviews)

Stranded Steel Core Cello A String - 4/4 Scale, Medium Tension

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Item ID: KpClo44A

D'Addario KS511 Kaplan Cello A String - 4/4 Scale Medium Tension

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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 D'Addario. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated May 2026.

Cello Strings Are Not Returnable

Sorry, cello strings cannot be returned, so please call if you'd like help choosing.

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D'Addario KS511 Kaplan Cello A String - 4/4 Scale Medium Tension

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Powerful, Warm, and Expressive Cello Strings

Kaplan Cello Strings from D’Addario supplies all the beautifully rich and complex tonality that truly defines a cello’s sound. Professional cellists prefer the sound of Kaplan strings, and it's easy to see why. Between its ability to withstand heavy bow weight and its soothing tonal diversity, these cello strings are up to the task when the stakes are the highest. This string features a solid steel core for a slightly more rigid feel and added projection — a combination of valuable traits not lost on cellists here at Sweetwater.

D’Addario Kaplan Cello String Features:

Cello A string: 4/4 scale, medium-tension
Designed for and trusted by professionals
Tonally versatile and withstands heavy bow weight
Solid steel core offers a more rigid feel

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Tech Specs

Type: A String
Instrument Size: 4/4
Core Material: Solid Steel
Winding Material: Titanium
Gauge: Medium
End Type: Ball
Manufacturer Part Number: KS511 4/4M

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Reviews

3.5

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D'Addario replaced a new string which snapped during installation at no charge. They did so by quickly replying to my e-mail and following through immediately. These strings are excellent (not cheap) and fabulous service from the manufacturer will keep them as my 'go-to' brand. I use their guitar, bass, and mandolin strings as well. Sweetwater and D'Addario -- you cannot lose !

I've become accustomed to and generally pleased with this brand. However, this particular example snapped at the top during ordinary installation. D'Addario is one of my two 'go-to' brands for guitar strings as well ; they have been pleasant and cooperative about replacing defective products in the past so I hope they will do the same for this orchestral product.

See also: D'Addario, D'Addario Cello Strings