Yamaha TRBX504 4-String Bass Guitar Brick Burst

Yamaha TRBX504 4-String Bass Guitar Brick Burst

Yamaha TRBX504 4-String Bass Guitar Brick Burst

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Introducing the Yamaha TRBX504 4-String Bass finished in Brick Burst. Those clever experts at Yamaha have brought you an extremely playable and versatile bass guitar. With one ultimate goal. Tone.

Superior and Versatile

Offering a modern comfortable body shape, with a superior neck. Exclusive Yamaha electronics, delivering a multitude of tonal response and delivery. A superior and versatile bass guitar!

This Yamaha TRBX504 4-String Bass is perfect for the home player, studio crafter and the live performer.

The basses comfortable body and neck make playing this bass joyful and expressive. It offers a huge range of performance-related features.

Yamaha TRBX504 4-String Bass in Brick Burst Features:

  • Modern looks and comfortable feel
  • Solid mahogany body construction
  • Maple / Mahogany 5-Piece Neck
  • Slim 38mm nut width
  • 3-Band Active EQ with active/passive preamp
  • Battery Alert LED

Comfortable Body, Comfortable Neck

The Yamaha TRBX504 4-String Bass features an expertly designed Mahogany body. That balances perfectly between tone, comfort and ideal weight distribution.

Attached to the body is a 5-pc maple/mahogany laminated neck. With a precision fitted bolt-on neck joint. This refined neck design delivers fast playing and superior comfort.

With the addition of strength, balance and fantastic fret play. The neck also comes with a Rosewood fingerboard atop. Allowing amazing upper neck access and quick neck navigation.

The nut is a slim 38mm width. You'll find this neck perfect for the fretting hand.

High-Quality Electronics

In the bowels of Yamaha HQ, they produced these extremely versatile pickups. And installed them into the Yamaha TRBX504 4-String Bass.

With a crisp and clean bass tone. Matched with the flexibility of the active/passive preamp technology. With a quad-pole piece design and alnico magnets. Gifting power to the active circuit and tonal subtleness to the passive circuit.

The advanced design offers a level-matched output. Whether you're in passive or active mode. The tone-switching circuit moves the treble control to master passive tone.

A battery alert LED installed on the back panel gives an instant indication of low power to reduce power loss when you're performing.

Durable Hardware

Yamaha TRBX504 4-String Bass comes with a solid high-mass die-cast bridge. Which transfers string vibration effortlessly for a full and rich sound. This bridge is easily adjustable, perfect for refining your playing position.

With Black Nickel Die-cast tuners, the string stability is amazing. And a metal plate-mounted standard jack socket offering superior durability and easy maintenance.

Yamaha TRBX504 4-String Bass in Brick Burst Specs:


  • Construction: Bolt-on
  • Scale Length: 34" (863.6 mm)


  • Body Materials: Mahogany
  • Body Finish: Satin Polyurethane
  • Body Colour: Brick Burst


  • Neck Materials: Maple/Mahogany 5-Piece
  • Neck Finish: Satin Polyurethane
  • Fingerboard Materials: Rosewood
  • Fingerboard Radius: 10" (250 mm)
  • Fret wire: Medium
  • Number of frets: 24
  • Nut materials: Urea
  • Width @ 0 Fret / 12th Fret: 38mm / 56.4mm
  • Thickness @ 1st Fret / 12th Fret: 19.5mm / 21.5 mm


  • Neck Pickup: Double Coil / Alnico V
  • Bridge Pickup: Double Coil / Alnico V
  • Controls: Master Volume, Pickup Balancer, 3-Band EQ(Bass, Middle, Treble), Active/Pssive Switch
  • Pickup Switch: N/A


  • Bridge: Die-cast
  • String spacing: 19mm
  • Tailpiece: N/A
  • Tuning Machines: Covered / Die-cast


  • String gauge: D'Addario EXL170SL / 45-100
More Information
Manufacturer Yamaha
SKU 308881
Shipping Weight (kg) 8.000000
Colour sunburst
Warranty 2 Years
Series TRBX Series
Scale Length 34''
Nut Width 38mm
Neck Wood 5-Piece Maple / Mahogany
Pickup Config 2 x humbucker
Number Of Strings 4 string
Body Material mahogany body
Body Size full size
Right / Left-Handed right handed
Fingerboard rosewood fingerboard
Guitar Style TRB Style


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.

Click here for more about our local Click & Collect Service.


If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note: We cannot accept returns of microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have removed the hygienic packaging.

Click here for more information on Returns at PMT.

Online Orders

If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.

Store Orders

If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.