Detail 01
Roundwound
Textured winding, brighter and more aggressive than flatwound, with audible finger noise on the wound strings.
Product detailSKU #1274115036859
ThomastikJR345 Roundwound Scale 5-String Jazz Bass Strings
Independent shopping perspective
The Korena take
Roundwound 5-string set for jazz bass at a boutique price. For players who want a specific feel and will pay several times a standard set's cost.
Strong match
Who this is for
- 5-string jazz bass players replacing a worn set
- Players chasing a specific string feel over cost
- Anyone who leaves strings on for months rather than weeks
Consider the trade-offs
When to look elsewhere
- Players who change strings every few weeks — cost adds up fast
- 4-string basses; this set has a low B
- Anyone happy with a $25 set of roundwounds
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
5-string set
Includes a low B. Only useful if your bass has five tuners and a nut cut for it.
Detail 03
Made for jazz bass
Scale length and tension are matched to a standard long-scale J-style instrument.
Detail 04
$162.95 per set
Several times a typical roundwound set. You are paying for the feel, not the quantity.
Final check
Know before you order
- 01Check your bridge — through-body stringing needs longer strings than top-load
- 02Confirm your nut slots are cut for a low B
- 03New strings shift neck relief; a truss rod tweak may follow
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will these fit a 4-string bass?
Not as sold. This is a 5-string set including a low B. You would be buying and discarding a string.
02Why are these so much more than normal bass strings?
Thomastik sets are made to a different standard than mass-market strings. Whether that is worth five times the price is your call.
03Are roundwounds hard on frets?
The wound texture wears frets faster than flatwound. Normal for the type, not specific to this set.
04Do these work on basses other than a Jazz Bass?
Yes, on any long-scale 5-string with compatible bridge spacing and nut slots. The name refers to the intended instrument type.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPickups & controls
- Pickup Configuration
- JJ
