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Allowing you to select between an active or passive preamp for a wide variety of available tones, the translucent black TRBX504 4-String Electric Bass from Yamaha features a solid mahogany body with a 5-piece maple and mahogany neck with rosewood fingerboard. Its dual alnico pickups were tuned to match the selectable preamp, and there are treble, middle, and bass controls to further dial in your tone. Its controls are rounded out by its active/passive switch, a pickup blend knob, and a master volume knob.
The TRBX504 features a sculpted solid mahogany body, with a mass-optimized 3D design for a balance between tone and comfort coupled with even weight distribution
The neck design combines a fast, comfortable profile with 5-piece maple/mahogany laminated construction for stability and improved tone
YGD-designed H5 pickups are defined by a clean, open tone that's matched with the flexibility of the active/passive preamp design. Their quad-polepiece design and alnico magnets give them the power to drive the active circuit, and the sensitivity and subtlety to capture nuance in passive mode
The TRBX504 features an audiophile-grade active/passive circuit for fine tonal control and flexibility. The 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. Gold-plated parts are used for key signal chain contacts, providing increased conductivity and reliability, and a battery alert LED installed on the back panel gives instant indication of low power to eliminate sudden power loss during performance
TRBX504 uses a precision-fitted bolt-on neck joint for adjustability and clear, punchy tone. Developed through hundreds of hours of play-testing, the refined neck joint shape balances strength, vibration transfer, and upper-fret access
A high-mass die-cast bridge efficiently transfers string vibrations to the body for full, rich tone combined with adjustability and road-tested durability. 19mm string spacing on the 4-string model offers improved playability for technical slap or finger styles
Straight string pull from nut to machine head eliminates lateral tension, providing improved tuning stability and reducing overtones
The 38mm nut width provides fast, comfortable playability for any style
Yamaha's metal plate-mounted standard jack socket offers durability and easy maintenance
In the Box
Yamaha TRBX504 4-String Electric Bass (Translucent Black)
Limited 1-Year Warranty for Parts & Labor
Lifetime Warranty for Top, Neck, Back & Sides
Table of Contents
34" (863.6 mm)
5-piece maple and mahogany
10" (250 mm)
1.5" (38 mm)
Die cast (0.75" / 19 mm)
Neck: HHB5n (alnico V) Bridge: HHB5b (alnico V)
Master volume Pickup balance Bass Middle Treble Active/Passive switch (battery alert LED on back)