Korena
Product detailSKU #1274115036574

ThomastikSpirocore 4/4 Size Cello Strings 4/4 A String

Thomastik
Thomastik Spirocore 4/4 Size Cello Strings 4/4 A String

Independent shopping perspective

The Korena take

A single Spirocore A string for 4/4 cello. A replacement string, not a full set — buy it when the A goes or you want to change one string.

Thomastik Spirocore 4/4 Size Cello Strings 4/4 A String product detail
Product studyThomastik Spirocore 4/4 Size Cello Strings 4/4 A String

Strong match

Who this is for

  • Replacing a broken or worn A on a full-size cello
  • Players who wear through the A faster than the lower strings
  • Keeping one spare A in the case for rehearsals

Consider the trade-offs

When to look elsewhere

  • Anyone needing a full set — this is one string only
  • Smaller cellos: 3/4, 1/2 and under need their own sizes
  • Double bass or viola players

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01

Single A string

Only the top string. The D, G and C are sold separately, so a full restring costs several times this.

Detail 02

4/4 size

Cut for a full-size cello. On a 3/4 or smaller instrument the speaking length will be wrong.

Detail 03

Spirocore construction

A steel-core string. It settles to pitch quickly and holds tuning better than gut-core alternatives.

Detail 04

$44 for one string

Steel-core cello strings are priced per string. Budget accordingly if you are replacing the whole set.

Final check

Know before you order

  1. 01This is the A only — D, G and C are separate purchases
  2. 02Confirm your cello is 4/4 before ordering
  3. 03A new string stretches for a few days; expect repeated retuning

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01Is this a full set of cello strings?

No. This is the A string alone. The D, G and C are sold as separate items.

02Will it fit a 3/4 cello?

No. This is cut for a 4/4 full-size cello. Smaller instruments need the matching size.

03How long does it take to settle?

Steel-core strings settle faster than gut. Expect a few days of retuning before it holds pitch reliably.

04Can I mix this with a different brand on the other strings?

You can, though tension and response will differ across the strings. Many players match the full set for balance.