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D'ADDARIO Super Sensitive 2107 Red Label Violin String Set - 4/4 Size
Red Label is the red envelope several generations of American school players learned on: the range dates back to the 1930s under Super-Sensitive, and on 7 January 2021 D'Addario announced its acquisition and moved production to Farmingdale, New York. The historic article numbers survived: this full-size set is 2107, 4/4, medium gauge, UPC 752715021077. The build is as simple as it is dependable — a solid steel core in all four strings, plain unwound steel on the E, and nickel flat winding on the A, D and G. The ends are removable balls, so the set fits both ball-end tailpieces and loop-end hooks. The voice is steel by definition: bright, direct in response, and remarkably steady in pitch for a modest budget.
🏆 SoundsGood — genuine D'Addario strings only, in official packaging.
A Steel Core That Holds Pitch for Weeks
Solid steel is the most stable core material used in violin strings: it barely reacts to humidity and temperature swings and needs no break-in at all. For a classroom, a school orchestra or a rental instrument that is the whole point — the violin comes out of the case already in tune, with no ten minutes of tweaking before every lesson. The service life is not synthetic either: a set like this lasts through a school year rather than through a term.
Nickel Flat Winding: Smooth Under the Fingers
The A, D and G are wound with flat nickel ribbon over the steel core. A flat winding means an even, almost polished surface: fingers do not catch on the coil during shifts, there is less noise from the left hand sliding, and the winding itself wears through more slowly where pressure is constant. Nickel also shrugs off perspiration better than silver or aluminium, so the strings keep their look and sound — decisive in a school where an instrument passes from hand to hand.
Removable Ball: Fits Any Tailpiece
Every string in the set carries a removable ball — take it off and the end becomes a loop. The set therefore fits ball-end fine tuners and the loop-end hooks found on budget and older tailpieces with no modification. That removes the most common worry when buying strings for a class or rental violin: there is no tailpiece compatibility to check, the set will go on whatever is there.
Specifications
| Application | Violin string set |
| Series | Super Sensitive Red Label (violin), a D'Addario brand |
| Size | 4/4 (full) |
| Gauge | Medium |
| Core | Solid steel core |
| E string | Unwound plain steel |
| A string | Nickel flat wound over solid steel core |
| D string | Nickel flat wound over solid steel core |
| G string | Nickel flat wound over solid steel core |
| End type | Removable ball — comes off to leave a loop end |
| UPC | 752715021077 |
| Other sizes in the range | 2105 (3/4), 2104 (1/2), 2102 (1/8) |
| D'Addario Article | 2107 (also written SS2107) |
| Included | 4 strings — E, A, D and G in a Super Sensitive Red Label pack marked with the article number |
| Country of Manufacture | USA, Farmingdale, New York (after D'Addario acquired the range in 2021) |
What's Included
The pack holds four strings — E, A, D and G — in a Super Sensitive Red Label envelope marked with article 2107. It is a complete restring for a 4/4 violin with nothing to add.
Who It's For
A set for the music-school pupil and the beginner who needs tuning without surprises, for the teacher restringing class and rental instruments and counting service life, and for the amateur or school orchestra player working in cold halls who would rather not spend on synthetics.
Frequently Asked Questions
Is Red Label a Super Sensitive or a D'Addario product?
Both. The range was created by the American Super-Sensitive Musical String Company back in the 1930s, and on 7 January 2021 D'Addario announced the acquisition: "D'Addario is excited to announce the acquisition of Super-Sensitive Musical String Company, whose inception dates back to the 1930s." Production moved to Farmingdale, New York, and historic article numbers such as 2107 were kept.
How do they sound next to synthetic strings?
These are steel strings and they sound like steel: bright, direct, with a clean attack and none of the fuzz of a synthetic core. In exchange you get tuning stability, durability and price — precisely the combination that keeps the range in schools and orchestral classes.
Ball end or loop end in this set?
The ball is removable: as supplied every string has a ball, which can be taken off to leave a loop. The set is therefore compatible with both ball-end fine tuners and loop-end hooks.
Do these strings need breaking in?
Effectively no: a solid steel core barely stretches, so the set reaches working pitch right after fitting and the first pull-up. That is one reason the range is favoured wherever instruments are restrung in batches.
Can single strings from this set be bought?
Yes, the 4/4 medium ball-end singles have their own article numbers: 2117 for the E, 2127 for the A, 2137 for the D and 2147 for the G. There is also a 2107F version of the set with a flat wound E.
Are these genuine D'Addario strings?
Yes. SoundsGood supplies only genuine D'Addario product in official packaging marked with article numbers.
🚚 Shipping and Payment
🏆 SoundsGood — full warranty and service support
✅ Quality guarantee — genuine strings only
🏪 Pickup — Kyiv, free
🚚 Nova Poshta / Ukrposhta / Meest — 1–3 days
💳 Installments — PrivatBank, Monobank
🎻 Order the Red Label 4/4 set at SoundsGood! ⚡