Yamaha TRBX604FM 4-String Electric Bass (Natural Satin)


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Yamaha TRBX604FM 4-String Electric Bass (Natural Satin)

  • Yamaha TRBX604FM 4-String Electric Bass (Natural Satin)
  • Limited 1-Year Warranty

From The Wavelength Blog Read more

Yamaha TRBX604FM 4-String Electric Bass (Natural Satin)

The Yamaha TRBX604FM 4-String Electric Bass is all about the perfect balance of elements. The punchy tone of a 3D sculpted alder/maple laminated body, the timeless looks of a flame maple top, the power of Yamaha’s 3-band active/passive preamp, and the playability of the slimmest bass neck. Everything you need, just how you need it.


YGD H5 pickups are defined by a clean, open tone that’s perfectly matched with the flexibility of the active/passive preamp design. Their quad-pole piece design and alnico magnets give them the power to drive the active circuit and the sensitivity and subtlety to capture every nuance in passive mode.


This model features an audiophile-grade active/passive circuit for fine, tonal control and extreme flexibility. This advanced design offers a level-matched output, whether in passive or active mode, and tone-switching circuitry that seamlessly moves from treble control to master passive tone. High-quality, gold-plated parts are used for key signal chain contacts, providing increased conductivity and reliability, and the LED low battery alert installed on the back panel helps to prevent sudden power loss during performances.


A sculpted, alder/maple-laminated body with a mass-optimized 3D design strikes the optimal balance between tone and comfort coupled with perfect weight distribution.


The TRBX neck design combines an ultra-comfortable profile with 5-piece maple/mahogany-laminated construction for outstanding stability and excellent tone.

Neck Joint

Developed through hundreds of hours of testing, the refined neck joint shape perfectly balances strength, vibration transfer, and upper-fret access.


The straight string pulls from the nut to the machine head eliminates lateral tension, providing superior tuning stability and reducing overtones.


A high-mass, die-cast bridge efficiently transfers string vibrations to the body for a full, rich tone combined with excellent adjustability and road-tested durability. The 18mm spacing on the 5-string model offers outstanding playability for technical slap or finger styles.

Output Jack

The Yamaha metal, plate-mounted standard jack socket offers superior durability and easy maintenance.

Yamaha TRBX604FM 4-String Electric Bass


  • Construction: Bolt-on
  • Scale length: 34 inch


  • Body materials: Flamed Maple/ Alder
  • Body finish: Satin polyurethane


  • Neck materials: Maple/Mahogany 5-piece
  • Neck finish: Satin polyurethane
  • Fingerboard materials: Rosewood
  • Fingerboard radius: 10 inch
  • Fret wire: Medium
  • Number of frets: 24
  • Nut materials: Urea
  • Width at 0 fret / 12th fret: 1.5 / 2.22 inch
  • Thickness at 1st fret / 12th fret: 0.76 / 0.84 inch


  • Neck pickup: Double-Coil / Alnico V
  • Bridge pickup: Double-Coil / Alnico V
  • Controls: Master Volume, Pickup Balancer, 3-BAND EQ (Bass, Middle, Treble), Active/Passive Switch


  • Bridge: Die-cast
  • String spacing: 19mm
  • Tuning machines: Covered / Die-cast


  • String gauge: D'Addario EXL170 / 0.045-0.100
  • Color: Natural Satin

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