Detail 01
Weich tension
Weich is German for soft. Lower tension means less pull under the fingers and easier stopping, at the cost of resistance.
Product detailSKU #1274115036341
ThomastikSpirocore 4/4 Size Double Bass Strings 4/4 Weich Set
Independent shopping perspective
The Korena take
A complete four-string set for 4/4 double bass in weich (light) tension. For bassists who want less resistance under the left hand.
Strong match
Who this is for
- Full restring of a 4/4 double bass
- Players who find heavier tension stiff to stop cleanly
- Long playing sessions where left-hand fatigue is the limit
Consider the trade-offs
When to look elsewhere
- 3/4 and smaller basses — string length will not match
- Players wanting stiffer, higher-tension response
- Anyone replacing just one string — this is a full set
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 02
4/4 size
Sized for full-size double bass string length. A 3/4 bass, the more common size, needs its own length.
Detail 03
Complete set of four
All four strings change together, so tension stays even across the bass instead of one new string fighting three old ones.
Detail 04
$385.95 per set
A serious per-restring cost. Most bassists run a set for years and clean rather than replace early.
Detail 05
Spirocore line
A long-running orchestral string line. Choosing between its tension grades matters more day to day than the line itself.
Final check
Know before you order
- 01Measure your bass — 4/4 and 3/4 are not interchangeable
- 02Changing overall tension can warrant a bridge and setup check
- 03Strings only; no tailpiece, adjusters, or tools included
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What does weich mean?
Light tension. Less pull across the bass, softer under the left hand, and less resistance to push against than a medium set.
02Will these work on a 3/4 double bass?
No. These are cut for 4/4 string length. Fitting them to a smaller bass leaves the winding in the wrong place.
03Is this one string or the whole set?
The whole set — four strings for a 4/4 double bass.
04Can I mix one weich string into a medium set?
You can, but tension across the four strings becomes uneven, which shows up in how hard each string is to stop and bow.
