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DTJR345

Thomastik JR345 Electric Bass Guitar 5 Str Set Round Wound


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The Thomastik-Infeld JR345 Jazz Roundwound is a premium 5-string electric bass set engineered specifically for 34" long-scale instruments. Delivering the signature upright-style acoustic warmth of Thomastik’s legendary double bass heritage alongside the clarity and bite of modern roundwounds, this set features a finely wound, small-diameter nickel alloy wrap over a supple round steel core with internal silk inlays.

Engineered with a lower-tension profile, the JR345 provides relaxed, effortless playability and reduces neck relief strain without sacrificing dynamic punch or projection—even on the extended low B fundamental. Bassists across Australia favour this set for studio, jazz, fusion, and soul sessions where expressive touch sensitivity, long sustain, and minimal fret wear are essential.

Features

  • Complete 5-string roundwound set for electric bass guitars
  • Precision-engineered for standard 34" long-scale instruments
  • Supple round steel cores with internal silk inlays provide superior vibration and low-tension comfort
  • Small-diameter pure nickel alloy winding minimizes finger squeak and fretboard wear
  • Delivers woody, upright-inspired warmth with crisp top-end harmonic articulation
  • Balanced gauge profile (.043 - .118) ensures consistent tension and intonation across all five strings
  • Extended low B fundamental engineered for tight, articulate low-end clarity

Specs

  • Model: JR345 (DTJR345)
  • Instrument: Electric Bass
  • Series: Jazz Round Wound
  • Set Type: 5-String Bass Set
  • Scale Length: Long Scale (34")
  • Gauge Range: Medium-Light (.043 - .118)
  • Number of Strings: 5
  • Core Material: Round Steel Core with Silk Inlay
  • Winding Material: Pure Nickel Alloy Roundwound
  • Total Set Tension: 68.60 kg / 151.24 lb

String Specifications

  • G String – JR34043: Round steel core with silk inlay, nickel roundwound, 0.043" gauge, 15.70 kg / 34.61 lb tension
  • D String – JR34051: Round steel core with silk inlay, nickel roundwound, 0.051" gauge, 13.70 kg / 30.20 lb tension
  • A String – JR34068: Round steel core with silk inlay, nickel roundwound, 0.068" gauge, 13.40 kg / 29.54 lb tension
  • E String – JR34089: Round steel core with silk inlay, nickel roundwound, 0.089" gauge, 12.69 kg / 27.99 lb tension
  • B (H) String – JR34118: Round steel core with silk inlay, nickel roundwound, 0.118" gauge, 13.11 kg / 28.90 lb tension