Detail 01
Flatwound
Smooth outer winding. Darker, thumpier tone, almost no finger squeak, and easier on frets and fingerboards than rounds.
Product detailSKU #1274115036883
ThomastikJF365 Jazz Flatwound Long Scale 5-String Bass Strings
1/8
Independent shopping perspective
The Korena take
Five-string long-scale flatwound set from Thomastik's Jazz line. For players who want a smooth, dark thump and low finger noise on a five-string.
Strong match
Who this is for
- Upright-adjacent tone on an electric five-string
- Studio players who need finger squeak gone
- Fretless basses, where flats reduce fingerboard wear
Consider the trade-offs
When to look elsewhere
- Slap and modern aggressive rock — flats cut the top end
- Four- and six-string basses; wrong string count
- Short-scale instruments — these are cut long scale
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
Five-string set
Includes a low B. Requires a five-string nut, bridge and tuner layout.
Detail 03
Long scale
Cut for roughly 34 inch scale so the silk and taper land correctly at nut and bridge.
Detail 04
Jazz series
Voiced toward the mellow, mid-focused end rather than bright attack.
Detail 05
Price per set
Well above a standard roundwound set. Flats hold their tone far longer, so changes are less frequent.
Final check
Know before you order
- 01Flats feel stiffer and pull differently — expect a truss rod tweak
- 02Confirm long scale fits your bass before ordering
- 03Nut slots cut for roundwounds may need attention with flats
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will flatwounds fit a fretless bass?
Yes, and they are a common choice for fretless. The smooth winding is much gentler on an unfretted fingerboard than roundwounds.
02How long do flatwounds last?
Far longer than roundwounds. Flats settle into their tone and stay there rather than dying, so many players run one set for years.
03Do these work on a 35 inch scale five-string?
Check the string length against your bass. These are cut long scale, around 34 inch, so a 35 inch instrument may leave the low B short at the post.
04Will the tension feel different from roundwounds?
Yes. Flats generally feel stiffer under the fingers. Plan on checking neck relief and intonation after the change.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
4 detailsOther
- Category Source
- detail
- Tier
- new
- Korena Special
- false
- Source Id
- site51274115036883
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