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Yamaha TRBX304 4-String Electric Bass  

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The TRBX304 is built around a simple principle - your performance. The perfectly balanced, ultra-comfortable solid mahogany body provides the optimum tonal foundation while the Performance EQ active c... Click To Read More About This Product

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The TRBX304 is built around a simple principle - your performance. The perfectly balanced, ultra-comfortable solid mahogany body provides the optimum tonal foundation while the Performance EQ active circuitry gives instant access to perfectly dialed-in stage-ready tones coupled with the expressive control you need.

TRBX features a sculpted solid mahogany body, with a mass-optimized 3D design for the optimum balance between tone and comfort coupled with perfect weight distribution. The neck design combines a fast, ultra-comfortable profile with 5-pc maple/mahogany laminated construction for outstanding stability and excellent tone. It 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.

YGD designed M3 pickups feature oversized polepieces and ceramic magnets for a clear, powerful tone with incredible definition and depth. The hum-cancelling design ensures your performance clean and noise-free while the integral thumb-rest provides unrivalled playability.

TRBX304 boasts Yamaha's exclusive Perfomance EQ active circuit with five performance-tuned full spectrum EQ curves optimized to give instant access to essential sounds along with powerful 2-band master equalization to shape and define your tone.

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.

19mm string spacing offers outstanding playability for technical slap or finger styles. Straight string pull from nut to machine head eliminates lateral tension, providing superior tuning stability and reducing overtones. 38mm nut width gives fast, comfortable playability for any style.

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

  • Sculpted solid mahogany body
  • 5-Piece, bolt-on, maple/mahogany neck
  • YGD designed M3 pickups
  • Exclusive Performance EQ active circuit with five performance-tuned full spectrum EQ curves
  • High-mass die-cast bridge
  • String spacing: 19mm
    Nut width: 38mm
    Scale Length: 34'' (836.6mm)
    Radius: 10'' (250mm)


Pro Coverage gives you added warranty protection for your new gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Read More.

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  • Repair costs covered for up to three years from date of purchase
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Review Snapshot

by PowerReviews
YamahaTRBX304 4-String Electric Bass

(based on 5 reviews)

Ratings Distribution

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  • 4 Stars



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  • 1 Stars



Reviewed by 5 customers

Displaying reviews 1-5

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(3 of 3 customers found this review helpful)


Disappointing sound

By Zoen

from Charlotte, NC

About Me Professional Musician


  • Fun To Play
  • Good Feel


  • Flat Sound
  • Poor Pick Up

Best Uses

  • Lessons
  • School Bands

Comments about Yamaha TRBX304 4-String Electric Bass:

I wanted to choose this bass of of three that I had researched. It feels GREAT, especially for a smaller guy like me. It has an amazing display of controls, a fast neck, and the thumbrest built into the pickup gives added playability. Despite this, once I plugged it into a nice Ampeg, the sound was just..... not what I'd consider a GOOD bass sound. I like deep, rich, vintage boom, and this thing was not capable of it, no matter what I tried. Granted, the salesman I had knew nothing about basses - and he was the only one I could find - typical of GC... but I plugged in the Squier Vintage Mod Jazz 70's and it BOOMED- same amp... an the Sterling SUB Ray4... that one won out by a landslide. Sometimes the electronics with more frills are just too much for a nice, simple GOOD bass tone.

(1 of 1 customers found this review helpful)


Great Bass Guitar

By Vmar514

from KC mo

About Me Experienced

See all my reviews

Verified Buyer


  • Fun To Play
  • Good Feel
  • Good Pick Up
  • Good Tone
  • Solid Electronics


    Best Uses

    • Jamming
    • Practicing
    • Recording
    • Small Venues

    Comments about Yamaha TRBX304 4-String Electric Bass:

    I love the Yamaha Bass guitar and the color is fantastic, goes with the rest of my red performance outfit. The guitar is lighter and the neck is smaller than my Fender. The extra settings on the toggle switch help when changing the sounds as well. I would recommend this Bass to anyone.

    (5 of 5 customers found this review helpful)


    Amazing Sound

    By Eli

    from Houston, Texas

    Site Member

    Comments about Yamaha TRBX304 4-String Electric Bass:

    This has a great sound and very comfortable and light. The neck is small and quick and action is low just the way I like it. The 5 position preset eq is an added plus when playing a variety of genres. I'm in awe of the full crisp slap sound that emanates from this bass in the eq slap position. My other favorite is the deep low end sound of the finger position. I would recommend anyone looking for a well put together and balance bass to buy the Yamaha TRBX304.

    (7 of 7 customers found this review helpful)


    This bass is perfect for me!

    By Alan

    from Columbus, OH

    Comments about Yamaha TRBX304 4-String Electric Bass:

    First, I like the clean, smooth look of this bass. It's a Yamaha, so quality is obvious. I picked it up at Guitar Center in Columbus, OH. James was very helpful, and not at all pushy about making the sale. I was looking at 2 or 3 different basses. James took the time to let me try them, made a few comparison comments, and let me decide for myself. I have a B.C. Rich bass, but was looking for an additional bass, and a shorter scale. This Yamaha has the Performance EQ, so obtaining different sounds, and adapting to different playing styles was a nice plus. The balance control for the pickups is a nice feature, too. For me, the neck is extremely comfortable and fast. The fret board is laid out very nice for me. I have pretty long fingers. I really like the feel and fingering of this neck and fret board. This guitar also weighs less than my B.C. Rich--honestly, more comfortable when I play for an hour or more. Overall, this bass is just what I was looking for. I'm an intermediate player, and I would recommend this bass for a beginner, or intermediate player. If you're a beginner, this is a great bass to start with. It'll take you a long way, and you won't have to buy 2 or 3 guitars as you progress and climb the experience ladder. If you're intermediate, this guitar will fill all your needs. This is truly a fantastic bass guitar, and the price is worth every penny for the quality, look, performance and sound.

    (5 of 5 customers found this review helpful)


    Right Start

    By Joe

    from Tempe, AZ

    Comments about Yamaha TRBX304 4-String Electric Bass:

    I went into my local GC to grab myself something inexpensive to get back into playing on a regular basis. Through talking with the reps, I got this pointed out to try on for size. I had been playing a jazz bass shape for 7 years prior to needing a new guitar. I really like the shape and style of the body. The neck is flat on the back and the action is fairly low out of the box. The tone selector is nice if you want to flip back and forth between styles without changing your bridge and manual EQ. Though some of the presets are not much different from each other, it is a feature that does get used quite a bit. I mostly use it for seeing some quick changes in a riff with running it through the different settings. Overall, I believe this is a great bass for players toward the intermediate level (or those like me who don't have the money for a 1k bass). This carries enough features to really build up your sound and know what you are looking in higher end purchases. TLDR; Pros: weight, shape, versatility, speed, easy intro to other basses, lot of bass for the buck. Cons: low-mid level pickups, mix wood neck, bridge seems a little cheap.

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