Gear article
Thomastik SuperFlexible Violin E String (Aluminium Wound)
The Thomastik SuperFlexible Violin E string is a medium-gauge 4/4 string featuring a braided steel core and aluminium winding. Designed as a more responsive alternative to traditional solid-core steel strings, it is engineered to provide a radiant tone while eliminating the harshness typically associated with steel construction.

Overview
The Thomastik SuperFlexible E string represents a departure from the standard solid-steel core strings often found in budget or student sets. By employing a core of braided steel threads, the string achieves a higher degree of elasticity and vibration compared to rigid alternatives. This specific model is wound with aluminium and designed for full-sized (4/4) violins, fitting into the medium tension category to suit a wide variety of instruments.
Design and Construction
The primary innovation of the SuperFlexible line is the 'rope core' or braided steel architecture. Unlike Thomastik's standard steel cores, these braided threads reduce the stiffness of the string. This increased flexibility directly translates to easier bow response and a more complex harmonic profile. The aluminium winding adds mass and protection to the core, helping to smooth out the transition between the E string and the lower A and D strings.

Tonal Character
In terms of sonics, the SuperFlexible E is designed to allow the natural tone of the violin to radiate without the piercing or metallic 'harshness' that can sometimes plague steel E strings. It is marketed as a string that enhances the 'tone of beauty' within the instrument, potentially uncovering resonance that stiffer strings might stifle. The result is a performance that feels more enlightened and expressive for the player.
Suitability
This string is particularly suited for players who find solid steel strings too bright or difficult to control, yet still require the durability and tuning stability of a metal core. It is an ideal choice for intermediate to advanced students and professional musicians looking to soften the top end of their instrument's register without sacrificing volume or responsiveness.
Market Comparison
While there are many E string options on the market, the SuperFlexible sits in a unique niche between standard steel and synthetic core options. Compared to the high-tension Larsen Gold Plated E, the SuperFlexible offers a more compliant feel under the fingers. When viewed against other multi-strand cores like the D’Addario Helicore (often used for 1/4 size instruments) or Zyex synthetic strings, the SuperFlexible provides a distinct 'braided' response that bridges the gap between traditional and modern string technology.
Related gear
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£15.40 ($20)Daddario
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£19.00 ($24)Thomastik
Thomastik Spirocore Viola G String Chrome Wound 4/4 Size Light
£14.15 ($18)Ernie Ball
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£14.99 ($19)Ernie Ball
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£13.60 ($17)Daddario
DAddario Zyex Violin Aluminum D String 4/4 Size Medium
£7.99 ($10)Dunlop
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£34.60 ($44)Larsen Strings
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Frequently asked questions
- What is the core material of the Thomastik SuperFlexible E string?
- The string features a core made of braided steel threads. This design is different from the solid steel core typically used in standard Thomastik strings.
- What is the winding material for this specific 4/4 E string?
- This particular model is wound with aluminium. The winding helps to provide a smoother feel and a more balanced tonal output.
- What size violin is this string designed for?
- This string is designed for a 4/4 (full size) violin. It may not fit or sound optimal on smaller fractional instruments like 1/2 or 1/4 sizes.
- What is the tension rating of this string?
- This string is classified as a 'Medium' (M) tension. This is generally considered the standard for most players and instruments.
- How does the 'SuperFlexible' name relate to its performance?
- The name refers to the braided core which makes the string more responsive and less stiff than solid steel. This allows the musician to play with more nuance and ease.
- Does this string sound harsh compared to other steel strings?
- No, the SuperFlexible is specifically designed to eliminate the harshness often found in steel strings. It allows the tone to radiate naturally from the instrument.
- Is this string suitable for students or professionals?
- It is suitable for both. Its responsiveness helps students develop better bow control, while its tonal beauty meets the requirements of professional performance.
- How does the price of the SuperFlexible E compare to other strings?
- It typically retails for around £9.00. This makes it an affordable upgrade compared to high-end gold-plated or specialized synthetic strings.
- Can I use this E string with a synthetic D and A string?
- Yes, many violinists mix and match strings. The aluminium winding on this E string helps it blend well with aluminium-wound synthetic A and D strings.
- Does this string come in different gauges?
- This specific listing is for the Medium gauge. Thomastik often produces variations, but Medium is the most widely used version for this model.
- What is the benefit of the braided steel threads over solid steel?
- The braided threads provide greater elasticity, which improves the string's vibration. This results in a fuller, less constricted sound compared to solid cores.
- Will this string work on a viola?
- No, this is a violin-specific string. For viola, you would need a dedicated product like the Thomastik Spirocore Viola G string.
