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Set of strings Thomastik Präzision (medium) 4/4 for violin Mi-stainless steel
Präzision is the simplest and toughest construction in the Thomastik-Infeld catalogue: a solid steel core instead of a rope or a synthetic bundle. In set 58 the E is bare stainless steel (article 50 on its own), while A, D and G run on carbon steel under a chrome winding. Size 4/4, vibrating length 32.5 cm (12.8"), medium gauge; tension is laid out as 7.8 · 6.5 · 5.9 · 5.5 kp for a total of 25.7 kp. That is 2.6 kp more than the rope-core Spirocore, so the set feels denser and stiffer under the fingers, and sounds bright, loud and very direct. Combined with the maker's more than one hundred years of experience in string development, this is the set you fit when you want plain-speaking sound and predictable service life.
🏆 SoundsGood — genuine Thomastik-Infeld strings only, made in Vienna.
Solid Steel and Why It Sounds Bright
The core in this line is one continuous steel wire — not a rope, not a bundle of synthetic filaments. Solid metal damps the high components of the vibration very little, so the tone comes out ringing, full of sheen and noticeably louder for the same bow stroke. For a student that means the instrument is audible even with an underdeveloped bow arm; for an orchestral player it means the second violin part will not sink into the texture. The same solid metal is largely indifferent to humidity and sweat, so the set keeps going through daily practice.
A Stainless Steel E With No Winding
The top voice of set 58 is article 50: ground stainless steel whose winding column in Thomastik's own table is simply empty, because no winding is intended. That E gives the most direct attack and the highest brilliance available here, and stainless steel does not tarnish under sweat the way plain tin-plated wire does. Its 7.8 kp is the highest tension in the set: the top string takes the heaviest bow pressure without drifting under it. If you prefer a slightly warmer top, the same set exists as 58A with a tin-plated E (article 49) at exactly the same 7.8 kp.
25.7 kp: Stiffer, but Steadier
The 25.7 kp total is a real load, and it explains the character of Präzision: high tension stops the string from wandering, so tuning holds and the sound stays focused even under a hard bow. The ladder is laid out evenly — 7.8 kp on the E, 6.5 on the A, 5.9 on the D, 5.5 on the G — with small steps between neighbours, so crossing strings does not change what the left hand has to press. All four strings use a crimp ball end, and the ball metals differ: nickel on E and G, brass on A, copper on D.
Specifications
| Application | String set for violin |
| Series | Präzision |
| Size | 4/4 (vibrating length 32.5 cm | 12.8") |
| Gauge | medium (mittel) |
| Core | Solid steel: stainless steel on the E, carbon steel on A, D and G |
| E string | Bare stainless steel, nickel crimp ball, 7.8 kp (17.2 lb), art. 50 |
| A string | Carbon steel, chrome wound, brass crimp ball, 6.5 kp (14.33 lb), art. 51 |
| D string | Carbon steel, chrome wound, copper crimp ball, 5.9 kp (13.01 lb), art. 53 |
| G string | Carbon steel, chrome wound, nickel crimp ball, 5.5 kp (12.13 lb), art. 54 |
| Total tension | 25.7 kp (56.6 lb) |
| Tailpiece end | Crimp ball end on all four strings; no loop-end version exists |
| Alternative set | 58A — same make-up but with a tin-plated E (art. 49), E tension also 7.8 kp |
| Thomastik article | 58 |
| Included | 4 strings in branded Thomastik-Infeld envelopes marked with article numbers |
| Country of Manufacture | Austria, Vienna (Handmade in Vienna) |
What's Included
The set comes as four separate Thomastik-Infeld envelopes — E (art. 50), A (51), D (53) and G (54) — each marked with its own article number and the medium gauge. Nothing else is needed: it covers a complete restring.
Who It's For
A set for the music-school pupil who needs strings that survive a year of lessons, for the orchestral player after a dependable workhorse with a loud, stable sound, and for the folk fiddler playing outdoors and in clubs who would rather not depend on the weather.
Frequently Asked Questions
What exactly is in set 58?
Four 4/4 strings in medium gauge: a bare stainless steel E at 7.8 kp (art. 50), a chrome-wound carbon steel A at 6.5 kp (art. 51), a chrome-wound D at 5.9 kp (art. 53) and a chrome-wound G at 5.5 kp (art. 54). Total tension is 25.7 kp.
How does set 58 differ from 58A?
Only in the E string: set 58 uses the bare stainless steel E (art. 50), 58A the tin-plated carbon steel E (art. 49). Both E strings pull 7.8 kp and the remaining three strings are identical.
How does Präzision differ from the same maker's Spirocore?
In core and total tension: Präzision runs on a solid steel core at 25.7 kp, Spirocore on a spiral steel rope at 23.1 kp. Präzision is therefore stiffer under the fingers and brighter, Spirocore springier and quicker to respond.
What is the vibrating length, and are smaller sizes available?
For the 4/4 size Thomastik states a vibrating length of 32.5 cm (12.8"), which is this set. The maker publishes no official article table for smaller sizes on the line page.
What ends do the strings have?
All four have a crimp ball end; no loop-end version exists in the line. Ball metals differ: nickel on E and G, brass on A, copper on D.
Are these genuine Thomastik strings?
Yes. SoundsGood supplies only genuine Thomastik-Infeld 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 Präzision set at SoundsGood! ⚡