Yamaha TRBX504 Electric Bass Guitar

The Yamaha TRBX504 is a four-string electric bass guitar from Yamaha’s TRBX500 Series, designed to deliver professional-quality sound, comfortable playability and extensive tonal flexibility. It features a sculpted solid mahogany body with an ergonomic design that provides excellent balance and comfort during extended playing sessions. Its traditional double-cutaway shape offers easy access to the upper frets, making it suitable for studio recording, rehearsals and live performances.

The TRBX504 is equipped with two Yamaha YGD-designed H5 Alnico V double-coil humbucking pickups, delivering a powerful, clear and well-defined bass tone. Its advanced active/passive preamp includes a three-band EQ with dedicated bass, middle and treble controls, allowing players to shape their sound precisely. The pickup balancer blends the output of both pickups, while the master volume and active/passive switch provide additional control. A battery alert LED indicates when battery power is running low.

The instrument features a five-piece maple and mahogany bolt-on neck, designed for stability and a comfortable playing feel. Its rosewood fingerboard has 24 medium frets and a 250 mm radius. The 863.6 mm scale length and 38 mm nut width provide a slim, fast-playing neck profile. A high-mass die-cast bridge with 19 mm string spacing, covered die-cast tuning machines and black nickel hardware complete its professional design.

Key Features

• Four-string electric bass guitar
• Sculpted solid mahogany body
• Ergonomic double-cutaway body design
• Five-piece maple and mahogany neck
• Bolt-on neck construction
• Rosewood fingerboard
• 24 medium frets
• Standard 34-inch scale length
• Slim 38 mm nut width
• Two Yamaha YGD-designed H5 Alnico V humbucking pickups
• Dual double-coil pickup configuration
• Clear and powerful bass response
• Active and passive operating modes
• Three-band active EQ
• Dedicated bass, middle and treble controls
• Master volume control
• Pickup balancer for blending pickups
• Battery alert LED
• High-mass die-cast bridge
• 19 mm string spacing
• Covered die-cast tuning machines
• Black nickel hardware

Specifications

• Brand: Yamaha
• Type: Electric Bass Guitar
• Series: TRBX500 Series
• Model: TRBX504
• Number of Strings: 4
• Body Shape: Sculpted Double Cutaway
• Body Material: Solid Mahogany
• Body Finish: Satin Polyurethane
• Neck Material: Maple/Mahogany 5-Piece
• Neck Construction: Bolt-On
• Neck Finish: Satin Polyurethane
• Fingerboard Material: Rosewood
• Fingerboard Radius: 250 mm (10")
• Scale Length: 863.6 mm (34")
• Nut Width: 38 mm
• Width at 12th Fret: 56.4 mm
• Neck Thickness at 1st Fret: 19.5 mm
• Neck Thickness at 12th Fret: 21.5 mm
• Number of Frets: 24
• Fret Type: Medium
• Nut Material: Urea
• Neck Pickup: YGD H5 Double Coil / Alnico V
• Bridge Pickup: YGD H5 Double Coil / Alnico V
• Pickup Configuration: HH (Dual Humbucking)
• Electronics: Active / Passive
• Controls: Master Volume, Pickup Balancer, 3-Band EQ and Active/Passive Switch
• EQ Controls: Bass, Middle and Treble
• Battery Indicator: Battery Alert LED
• Bridge: High-Mass Die-Cast
• String Spacing: 19 mm
• Tuning Machines: Covered / Die-Cast
• Hardware Finish: Black Nickel
• Strings: D'Addario EXL170 (.045–.100)
• Available Finishes: Translucent Black, Translucent Brown and Translucent White
• Included Case: Not included as standard

The Yamaha TRBX504 is an excellent choice for bassists seeking professional construction, versatile tonal control and comfortable playability. Its solid mahogany body, Alnico V humbucking pickups and active/passive electronics make it suitable for a wide range of musical styles, from studio recording and rehearsals to demanding live performances.