What is the core material of the Flexocor Original B string?

The string features a rope core, which offers a balance of flexibility and strength suitable for low-frequency vibrations.

What material is used for the winding?

The string is wound with chrome steel, providing a durable surface that maintains sound quality over time.

For what size double bass is this string designed?

This specific B string is designed for 3/4 size double basses, the most common size for adult players.

Is this string better for plucking or bowing?

While suitable for all genres, the Flexocor Original is specifically more suited to arco (bowed) playing and heavy bowing styles.

What is the tension of this string?

This B string is manufactured in a medium tension gauge to balance depth of sound with ease of playability.

Does this string have a loop or ball end?

This model features a ball tailpiece end, making it compatible with most standard double bass tailpieces.

How does the chrome steel winding affect the sound?

The chrome steel winding contributes to a clear and bright tone while ensuring the string remains durable under heavy use.

Can this string handle aggressive playing?

Yes, the manufacturer specifies that the string is designed to withstand a heavy bowing style without losing tonal quality.

What is the typical price for a single Flexocor Original B string?

The typical retail price for this single B string is approximately GBP 125.

Is the tonal profile balanced across frequencies?

Yes, the rope core construction is engineered to produce clear tones with balanced frequencies across its range.

Is this string suitable for jazz playing?

Yes, Pirastro describes the tone as reliable and suitable for all genres, though its design characteristics strongly favour orchestral arco work.

Who is the manufacturer of the Flexocor Original series?

The strings are manufactured by Pirastro, a German brand well-known for producing high-quality bowed instrument strings.

Gear article

Pirastro Flexocor Original Double Bass B String

The Pirastro Flexocor Original 3/4 Double Bass B String is a high-performance rope-core string designed specifically for low-end extension. Engineered for orchestral and arco use, it features chrome steel winding to ensure tonal longevity and clear, balanced frequency response.

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Overview

The Pirastro Flexocor Original B string is a specialized component for 3/4 size double basses, serving as the lowest string in a five-string setup or as part of an extended range configuration. Priced around £125, it is positioned as a professional-grade string that prioritises durability and tonal clarity. The string is constructed with a rope core and wound with chrome steel, a combination designed to resist corrosion and maintain a consistent surface texture over long periods of use.

Technical Design and Construction

At the heart of the Flexocor Original is a rope core, which provides the flexibility necessary for comfortable fingering while maintaining the structural integrity required for low B tuning. The exterior is wound with chrome steel. This material choice is significant as it provides a hard-wearing surface that can withstand the friction of a bow without rapid degradation. The string utilizes a medium tension gauge, which Pirastro identifies as the optimum balance between physical playability and the resonance depth required for the double bass's lowest register.

Tonal Character and Performance

The Flexocor Original is noted for producing clear, bright tones with well-balanced frequencies. Unlike some lower strings that can become 'muddy' or indistinct, the rope core and chrome winding ensure that the fundamental pitch remains defined. While the manufacturer states it is suitable for all genres, the string is particularly optimized for arco (bowed) playing. Its construction is specifically intended to withstand a heavy bowing style, allowing orchestral players to draw out a powerful, room-filling sound without the string 'choking' under pressure.

Application and Compatibility

This specific model is designed for 3/4 size instruments, which is the standard size for the majority of professional and student double basses. It features a ball tailpiece end, ensuring compatibility with standard modern tailpieces. While it is a dedicated B string, it is often compared to other professional strings such as those from the D'Addario Helicore or Thomastik Spirocore ranges, though the Flexocor Original is uniquely tuned towards the needs of the arco bassist seeking a traditional rope-core feel.

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Frequently asked questions

What is the core material of the Flexocor Original B string?: The string features a rope core, which offers a balance of flexibility and strength suitable for low-frequency vibrations.
What material is used for the winding?: The string is wound with chrome steel, providing a durable surface that maintains sound quality over time.
For what size double bass is this string designed?: This specific B string is designed for 3/4 size double basses, the most common size for adult players.
Is this string better for plucking or bowing?: While suitable for all genres, the Flexocor Original is specifically more suited to arco (bowed) playing and heavy bowing styles.
What is the tension of this string?: This B string is manufactured in a medium tension gauge to balance depth of sound with ease of playability.
Does this string have a loop or ball end?: This model features a ball tailpiece end, making it compatible with most standard double bass tailpieces.
How does the chrome steel winding affect the sound?: The chrome steel winding contributes to a clear and bright tone while ensuring the string remains durable under heavy use.
Can this string handle aggressive playing?: Yes, the manufacturer specifies that the string is designed to withstand a heavy bowing style without losing tonal quality.
What is the typical price for a single Flexocor Original B string?: The typical retail price for this single B string is approximately GBP 125.
Is the tonal profile balanced across frequencies?: Yes, the rope core construction is engineered to produce clear tones with balanced frequencies across its range.
Is this string suitable for jazz playing?: Yes, Pirastro describes the tone as reliable and suitable for all genres, though its design characteristics strongly favour orchestral arco work.
Who is the manufacturer of the Flexocor Original series?: The strings are manufactured by Pirastro, a German brand well-known for producing high-quality bowed instrument strings.