Yamaha TRBX504 4-String Bass Guitar has a simple brief – tone. Premium mahogany construction and an ultra-musical active/passive pre-amp design deliver the flexibility and sheer tonal quality to allow you to sculpt the perfect sound for your music.

This instrument is made for tonal flexibility, combining characterful mahogany construction with a powerful and responsive pre-amp. Equipped with this patented design, it's easy to craft your desired sound.

Maple / Mahogany 5-Piece Neck
Solid Mahogany Body
3-Band Active EQ
Battery Alert LED

Pickups

YGD designed H5 pickups are defined by a clean, open tone that’s perfectly 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 every nuance in passive mode.

Electronics (Active/Passive selector, Battery Alert)

TRBX500 models feature an audiophile-grade active/passive circuit for fine tonal control and extreme flexibility. The 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 a battery alert LED installed on the back panel gives instant indication of low power to eliminate sudden power loss during performance.

BODY

Neck

RBX’s neck design combines a fast, ultra-comfortable profile with 5-pc maple/mahogany laminated construction for outstanding stability and excellent tone.

Neck Joint

TRBX uses a precision fitted bolt-on neck joint for maximum adjustability and clear, punchy tone. Developed through hundreds of hours of play-testing, the refined neck joint shape perfectly balances strength, vibration transfer and upper-fret access.

Headstock

Straight string pull from nut to machine head eliminates lateral tension, providing superior tuning stability and reducing overtones.

38mm (4-string) or 43mm (5-string) nut widths give fast, comfortable playability for any style.

Bridge

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

Output Jack

Yamaha’s metal plate-mounted standard jack socket offers superior durability and easy maintenance.

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