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Based on price data from 2 merchants for "Thomastik Spirocore Upright Strings". Prices shown reflect NEW condition. Tracking began Apr 7, 2026.

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Description

Unlock the full potential of your double bass with Thomastik Spirocore Upright Strings, the choice of discerning musicians seeking a dynamic and responsive playing experience. Crafted with precision and care, these strings are designed to deliver a rich, resonant tone that can elevate any performance, whether in a bustling orchestra pit or a quaint jazz club. The chrome on steel rope core construction ensures durability and stability, offering a bright and powerful sound that remains consistent over time.

Perfectly suited for a 4/4 double bass, these strings provide medium tension, balancing effortless playability with robust projection. The orchestra tuning brings out the best in each note, making it an ideal choice for classical players who demand precision and clarity. Whether you're bowing or plucking, the Spirocore strings offer a smooth and articulate response, allowing you to express every nuance of your musicality.

Join a community of passionate musicians who trust Thomastik for their string needs and experience the difference for yourself. These strings not only enhance your sound but also your connection to the music, offering a tactile and auditory experience that inspires and captivates.

Key Features:

  • Tension: Medium
  • Suitable for 4/4 double bass
  • Orchestra tuning
  • Chrome on steel rope core construction
  • Set S42 medium

Product specs

Available since March 2004
Brand Spirocore
Suitable Style Jazz
Length 4/4
Ball End Yes
Loop End No
Set Yes
Single String No

FAQs

Are Thomastik Spirocore Upright Strings suitable for jazz music?

Yes, Thomastik Spirocore Upright Strings are particularly well-suited for jazz music, offering a rich tone and excellent projection that many jazz bassists prefer.

What is the core material of Thomastik Spirocore Upright Strings?

Thomastik Spirocore Upright Strings feature a flexible multi-strand steel core, which provides a warm sound with a long sustain, ideal for various playing styles.

Do Thomastik Spirocore Upright Strings come in a complete set?

Yes, Thomastik Spirocore Upright Strings are sold as a complete set for 4/4 size double basses, ensuring consistent tonal quality across all strings.

How does the ball end design of Thomastik Spirocore Upright Strings affect installation?

The ball end design of Thomastik Spirocore Upright Strings allows for easy installation and secure fitment on most standard double bass tailpieces.

What are the benefits of using steel core strings like Thomastik Spirocore for upright bass?

Steel core strings like Thomastik Spirocore offer greater durability, stable tuning, and a bright, focused sound, making them a popular choice for both live performances and studio recordings.

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Double Bass Strings Thomastik Spirocore E,A,D & Pirastro Original flat-chrome solo ウッドベース スラップ

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Double Bass Strings Thomastik Spirocore E,A,D & Pirastro Original flat-chrome solo ウッドベース スラップ

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Video thumbnail for Domenico Botelho: Review Thomastik Spirocore by Domenico Botelho

Domenico Botelho: Review Thomastik Spirocore

Domenico Botelho

Domenico Botelho

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Thomastik Spirocore Strings

Music & Arts

Music & Arts

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Thomastik Spirocore Upright Strings.

User experience

  • Spirocores are noted for their bright, clear sustain, which suits jazz pizzicato well but requires careful bowing technique to avoid a scratchy sound.

    Source
  • Spirocore strings' arco sound becomes more balanced after a few months of use, initially exhibiting a brighter tone that mellows over time.

    Source
  • Medium Spirocores can feel too thick and stiff in orchestral settings, affecting playability.

    Source
  • Spirocores require frequent "palm muting" to manage their prolonged resonance, necessitating an adaptive playing style.

    Source

Comparisons

  • Spirocore strings are considered the gold standard for brightness and clarity, whereas Pirastro Evah Pirazzi Weich offers a gut-like, mellow bow sound but less bow pressure tolerance.

    Source
  • Tuned-down solo strings share similar tension to Gensslers but can be overly scratchy for some users.

    Source

Features and functionality

  • Spirocore Weich strings are described as potentially wimpy for some players, while Mittel provides a tighter feel but may be too stiff for others.

    Source

Setup and maintenance

  • Weich strings are easier to initiate bowing and pair well with Belcantos for a balanced setup on certain instruments.

    Source

Use cases and applications

  • Solo strings tuned at normal pitch are favored by jazz players for lower tension, though they may struggle to produce a powerful sound.

    Source

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Artist usage

Add artist
See how Bob Crawford uses Thomastik Spirocore Upright Strings

Bob Crawford

Bassist, Composer

Michael Franti & Spearhead

...
Verified via Bassplayer

Bob uses Thomastik Hybrid Upright Strings for his Upright Bass

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Thomastik Spirocore Upright Strings, it is most commonly used with the following gear.

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