Product Overview
Features
- True ribbon flatwound outer winding in special nickel alloy — smooth, supple feel with focused warm response and minimal finger noise
- Highly flexible round steel core with silk inlay — deep tone, enhanced fundamental, and dynamic sensitivity comparable to an upright bass
- 5-string long-scale (34") set with generous .136 low B for focused, articulate low-end extension; hand-wound in Vienna
Description
The Thomastik-Infeld JF345 is the 5-string long-scale version of the legendary Jazz Flat Wound bass line — the electric bass answer to Thomastik-Infeld's iconic Spirocore upright bass strings, and widely regarded as the reference standard among true flatwounds. The construction draws directly from the upright tradition: a highly pliable round steel core is wrapped with a silk inlay, then finished with a true ribbon flatwound outer winding in a special nickel alloy. The silk inlay increases flexibility and gently damps excessive overtones, while the round core lets the string vibrate freely with no preferred motion axis. Together these elements deliver an incredible depth of tone and enhanced fundamental unavailable from any other flatwound.
Voiced for the warmth, articulation, and dynamic sensitivity of an upright bass in an electric format, the JF345 is a longstanding favorite of players who want organic, focused, minimally-fingered tone rather than the clank and sustain of a roundwound. At .043-.136 in long scale, the set adds a generous .136 low B — noticeably heavier than most B-string gauges — to compensate for the naturally lower tension of flatwound construction and keep the low B tight, focused, and articulate. Silk-wrapped ends at both the ball and tuner sides secure the windings for long-term stability. Made in Vienna to Thomastik-Infeld's century-old standards.
Specifications
- Brand: Thomastik-Infeld
- Model: JF345
- Series: Jazz Flat Wound
- Instrument: Electric Bass Guitar
- Number of Strings: 5
- Scale Length: Long Scale (34")
- Gauge: (.043 .056 .070 .100 .136)
- Winding: True ribbon nickel-alloy flat wound
- Core: Round core with silk inlay
- Ball End: Yes; silk-wrapped ends at ball and tuner sides
- Country of Origin: Austria
