Yamaha

Yamaha TRBX604FM 4-String Electric Bass Guitar

Boutique flamed maple style with a flexible active/passive preamp

Flamed maple top on a 3D-sculpted alder/maple laminated body
Active/passive switching with level-matched output and 3-band EQ
YGD H5 Alnico V humbuckers for a clean, open, detailed tone
Slim 38 mm nut on a stable five-piece maple/mahogany neck
Battery alert LED and gold-plated contacts for dependable performance

MRP~~₹64,990~~8% OFF

YMS Price₹59,789

Taxes included.

Color

Indigo Blue

Natural Satin

Quantity

Yamaha TRBX604FM 4-String Electric Bass with Flamed Maple Top

The Yamaha TRBX604FM is the four-string flagship of the TRBX600 series, with a flamed maple top over a sculpted alder/maple laminated body. It combines Yamaha's 3-band active/passive preamp and YGD H5 Alnico V pickups with what Yamaha describes as its slimmest bass neck profile, built on a 38 mm nut.

It is designed for players who want a professional-feeling four-string with a striking finish and tonal flexibility for stage and studio. Whether you play fingerstyle, slap or with a pick, the preamp lets you shape the sound in detail, while passive mode keeps you going if the battery runs low.

Key Features

Yamaha TRBX604FM 4-string bass with flamed maple top in Natural Satin

Flamed Maple Top on the TRBX604FM Bass

A flamed maple top crowns a 3D-sculpted alder/maple laminated body, shaped for comfort and even weight distribution. The construction gives a punchy voice, and natural flame figure means every top looks slightly different.

Yamaha TRBX604FM control panel with 3-band EQ and active/passive switch

Active/Passive Preamp with Level-Matched Output

Master volume, pickup balancer and a 3-band EQ for bass, middle and treble give detailed control in active mode. Switch to passive and the volume stays matched, while the treble knob becomes a master tone control.

YGD H5 Alnico V Pickups

Quad-polepiece H5 humbuckers with Alnico V magnets deliver a clean, open sound. They are powerful enough to drive the active preamp and sensitive enough to bring out nuance in passive mode.

Battery Alert LED and Gold-Plated Contacts

An LED on the back panel shows when the battery is getting low, so power loss does not catch you mid-song. Key signal-chain contacts use gold-plated parts for better conductivity and reliability.

38 mm nut on the Yamaha TRBX604FM 4-string bass neck

Slim Neck with 38 mm Nut

The five-piece maple/mahogany neck is laminated for stability, with a 38 mm nut, 10 in (250 mm) radius rosewood fingerboard and 24 medium frets. A straight string pull at the headstock helps tuning stay put.

Precision-Fitted Bolt-On Neck Joint

Yamaha refined the bolt-on joint through extensive play-testing to balance strength, vibration transfer and access to the upper frets. It also keeps the neck easy to adjust and service.

High-Mass Die-Cast Bridge

The high-mass bridge transfers string vibration into the body for a full, rich tone and offers easy adjustment of action and intonation. String spacing is 19 mm, with a metal plate-mounted output jack for durability.

Frequently Asked Questions

How does the TRBX604FM differ from the TRBX504?

They share the YGD H5 pickups, 3-band active/passive preamp, battery alert LED, gold-plated contacts and five-piece neck. The TRBX604FM has a flamed maple top on an alder/maple laminated body, while the TRBX504 uses a solid mahogany body.

Does the TRBX604FM have Performance EQ?

No. Performance EQ is a TRBX300 series feature found on the TRBX304 and TRBX305. The TRBX604FM uses a 3-band EQ with an active/passive switch instead.

TRBX604FM or TRBX605FM: which should I pick?

The TRBX605FM is the five-string version, with a 43 mm nut, 18 mm string spacing and a flatter 600 mm radius. If you do not need notes below low E, the TRBX604FM's 38 mm nut and 19 mm spacing offer a slimmer, more familiar feel.

Will it work if the battery dies?

Yes. Switch to passive mode and the bass keeps playing at a matched output level. The battery alert LED gives advance warning, and Yamaha specifies a 9 V (DC9V S-006P / 6LR61 / 6F22 or equivalent) battery for active mode.

What strings are fitted?

Yamaha fits the TRBX604FM with D'Addario EXL170 strings, gauged 0.045 to 0.100.

Why Buy from YMS?

Authorised Yamaha Premium Retailer
Genuine stock with full manufacturer warranty
Demo units at our Bengaluru and Mangaluru stores
Secure delivery across India
Free domestic shipping on all orders

Specifications

Overview

Model	Yamaha TRBX604FM
Type	4-string electric bass guitar, active/passive
Series	TRBX 600 Series - flagship
Finishes	Indigo Blue, Natural Satin

Body & Neck

Body	Sculpted alder/maple laminated, mass-optimised 3D design
Top	Flamed Maple
Neck	Maple / Mahogany, 5-piece laminated, bolt-on
Neck Finish	Satin polyurethane
Fingerboard	Rosewood
Fingerboard Radius	10 in (250 mm)
Frets	24

Dimensions

Scale Length	34 in (864 mm)
Nut Width	38 mm
Width at 12th Fret	56.4 mm
String Spacing	19 mm

Electronics

Type	Active / Passive switchable - 9V battery for active mode
Pickups	YGD H5 double coil, quad-polepiece, Alnico V magnets
Controls	Master Volume, Pickup Balancer, Bass, Middle, Treble
Switch	Active/Passive with level-matched output
Internal Parts	High-quality gold-plated components
Battery Alert	LED low-battery indicator

Hardware

Bridge	High-mass die-cast
Tuners	Die-cast, covered
Tuning	E-A-D-G
Included	No case or gig bag supplied

Electronics are identical to the TRBX504; the 600 series differences are the alder/maple body with flamed maple top and gold-plated internal parts. Specifications from Yamaha official product data.