D'ADDARIO KA311 4/4M E STRING FOR VIOLIN 4/4 MEDIUM VOLTAGE
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Manufacturer Information
D'addario And Co
https://www.daddario.com
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D'Addario Europe Ltd
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Kaplan Amo: A String Designed for Color and Control
The D'Addario Kaplan series was developed to meet the expectations of demanding musicians, with two complementary families: Kaplan Vivo (brighter and more direct) and Kaplan Amo (warmer and fuller). The Kaplan Amo E string fits within this philosophy: promoting controlled projection and a rich tonal palette, while maintaining a comfortable and stable playing feel.
For Which Violinist and Styles?
This medium tension E string for 4/4 violin is well suited for intermediate to professional musicians seeking an E string that remains singing, with a clear response and good intonation stability. It adapts to classical repertoires (soloist, chamber music, orchestra) and any context where a present yet musical E string is desired, without excessive aggressiveness.
Sound Characteristics
In the spirit of Kaplan Amo, this string aims for a warm and dense sound, with a noticeable flexibility under the bow. It emphasizes a rich and powerful tone and stabilizes quickly, helping players regain their playing reference points soon after installation. The efficient bow response promotes clean articulation, useful for both crisp attacks and expressive legato.
Recommended Compatible Accessories
This string is intended for a full-size (4/4) violin with a 328 mm vibrating length. To ensure perfect compatibility, always verify the 4/4 size and vibrating length before selecting a full set or replacement string.
Technical specifications
| Format | 4/4 |
| Tension | Medium |
| Type of cord attachment | Ball end |
| Category | Violine |
| Nbr of strings | 1 |
| Instrument | full-size (4/4) violin |
| Compatible vibrating string length | 328 mm |
| String | E |
| Series | Kaplan Amo |
| Character | warmth, richness, flexibility (especially on already well-voiced instruments) |
| Core | synthetic (rich and powerful sound) |
| Break-in | fast |
| Response | excellent bow response |
| Packaging | individually vacuum-sealed pouches |
| Protection | anti-corrosion |
| Design and manufacturing | USA |
| Quality control | stringent inspections according to the manufacturer |
Questions frequently asked
Is this E string compatible with a 4/4 violin?
Compatibility is designed for a full-size 4/4 violin with a vibrating length of 328 mm. The string has a ball end. The instrument size and vibrating length should be checked before installation.
What sound does the Kaplan Amo E string produce?
The Kaplan Amo range seeks a warm and rich tone with controlled projection. Its synthetic core is claimed to deliver a rich and powerful sound, particularly suited to instruments that are already well-voiced.
Is the D'Addario KA311 4/4M suitable for classical repertoire?
This medium tension string is suitable for classical contexts, from solo performance to chamber music and orchestral settings.
What is the break-in time for this E string?
A quick break-in period is expected after installation. The achieved stability allows for rapid tuning reference recovery. The bow response supports clear attacks and expressive legato.
How is the Kaplan Amo E string packaged?
Each string is supplied in an individual vacuum-sealed pouch with anti-corrosion protection. The design and manufacture are done in the United States.



