Detail 01
Roundwound
Ridged outer wrap gives brightness and sustain, with more finger noise and fret wear than a flatwound.
Product detailSKU #1274115037567
ThomastikJR364 Roundwound Long Scale 4-String Jazz Bass Strings
Independent shopping perspective
The Korena take
Long-scale roundwound set for 4-string bass from Thomastik. For players who want roundwound brightness with a smoother feel than typical steel sets.
Strong match
Who this is for
- Long-scale 34-inch basses like a Jazz or Precision
- Fingerstyle players wanting clear note definition without harsh top end
- Players who keep one set on for months rather than changing often
Consider the trade-offs
When to look elsewhere
- Short-scale or medium-scale basses — the silk wrap lands wrong
- 5-string players; this is a 4-string set only
- Anyone wanting maximum aggressive zing from stainless steel
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
Long scale
Built for a 34-inch scale bass. On a shorter neck the tapered end can sit over the nut or saddle.
Detail 03
4-string set
E, A, D and G only. No low B, so nothing here covers a 5-string layout.
Detail 04
Jazz Bass series
Thomastik's voicing for this line leans warm and even, closer to a vintage tone than a modern slap sound.
Detail 05
$130.95 per set
Priced far above standard bass sets. Value depends on how long you leave a set on before swapping.
Final check
Know before you order
- 01Confirm your bass is 34-inch scale before ordering; measure nut to bridge saddle
- 02Tension differs from your current set, so expect truss rod and intonation work
- 03Check whether your bridge is top-load or string-through; ball end depth matters
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will these fit a short-scale bass?
No. These are cut for long scale. On a 30 or 32-inch bass the winding taper can end up over the nut, which kills tone and can cause breakage.
02How long do these last?
Roundwounds dull as oil and skin build in the windings. Wiping the strings after playing extends usable brightness considerably.
03Are these good for slap?
They are roundwound so they have the brightness slap needs, though this line is voiced warmer than aggressive stainless sets built for modern slap tone.
04Do these work on a Precision Bass?
Yes, if it is the standard 34-inch long scale. The set is a 4-string long-scale layout, which covers both Precision and Jazz basses.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPickups & controls
- Pickup Configuration
- JJ
