Fender Adam Clayton ACB 50 review – Fender’s first-ever signature bass amp is a greatest hits of all-tube tones

Designed in conjunction with U2’s Adam Clayton, the ACB 50 is Fender’s first all-tube bass combo amp for over four decades – we put it through its paces

Fender ACB 50
(Image: © Fender)

Guitar World Verdict

One for tube tone purists, this high-end combo conjures up some of Fender’s most sought-after bass tones.


  • +

    Classic Fender tube sounds.

  • +

    Simple yet sensibly designed controls.

  • +

    Super-cool looks.


  • -

    Not much clean headroom.

  • -

    Pricey (but it is tube).

You can trust Guitar World Our expert reviewers spend hours testing and comparing guitar products so you can choose the best for you. Find out more about how we test.

Earlier this year, Fender launched its Adam Clayton signature bass amp, marking nine years since the company first got involved with U2’s stadium-rocking bassist with the Adam Clayton Jazz Bass.

The ACB 50 is the first all-tube bass combo amp Fender has produced in over four decades. “I know the fashion nowadays is to move away from valve amps, but I’ve always liked them,” said Clayton. “So I went to the team at Fender and asked if we could approach things a little differently.”

  • PRICE: $2,199
  • MADE IN: Mexico
  • TYPE: All-valve combo
  • OUTPUT: 50 watts into 8 ohms
  • VALVES: 2x 6L6 power tubes, 3x 12AX7 & 1x 12AT7 preamp tubes
  • CHANNELS: Two, classic Fender sound & flatter frequency sound, each with high & low inputs.
  • FEATURES: Channel one with volume, treble, bass, middle & mid frequency controls, channel two with volume, treble & bass controls. Balanced direct out, ground lift switch, balanced line out & external speaker out.
  • SPEAKER: 1x 15-inch Eminence Special Design
  • WEIGHT: 25 kg (55lbs)
  • DIMENSIONS: 61.5 (w) x 58.4 (h) x 35.6 (d) cm
  • CONTACT: Fender 

Thank you for reading 5 articles this month**

Join now for unlimited access

US pricing $3.99 per month or $39.00 per year

UK pricing £2.99 per month or £29.00 per year 

Europe pricing €3.49 per month or €34.00 per year

*Read 5 free articles per month without a subscription

Join now for unlimited access

Prices from £2.99/$3.99/€3.49

Nick Wells

Nick Wells was the Editor of Bass Guitar magazine from 2009 to 2011, before making strides into the world of Artist Relations with Sheldon Dingwall and Dingwall Guitars. He's also the producer of bass-centric documentaries, Walking the Changes and Beneath the Bassline, as well as Production Manager and Artist Liaison for ScottsBassLessons. In his free time, you'll find him jumping around his bedroom to Kool & The Gang while hammering the life out of his P-Bass.