ASHDOWN UK ABM 300 EVO IV | ABM Head 300W Made In UK Bass Amplifier

The ABM is Ashdown's flagship line — the amps the world's most famous bassists actually tour with — and this 300-watt head is built in England to prove it.

The EVO IV generation pairs a warm valve-driven preamp stage with 300 watts of muscular output, shaped by Ashdown's legendary 9-band EQ, footswitchable Sub-Harmonic Generator, one-knob compression and variable valve drive. It is the tone heard behind Geezer Butler, Guy Pratt and Adam Clayton, hand-assembled in the UK workshop and backed by a five-year warranty — professional bass amplification with nothing to prove and everything to offer.

Key specifications

• Model reference: UK-ABM-300-EVO-IV
• Category: Bass Amplifier
• Boxed dimensions & weight: 50 × 43 × 21 cm; 10.44 kg gross
• Made in: the United Kingdom

About Ashdown

Ashdown is British bass amplification at its best. Founded by Mark Gooday in 1997 after his years running Trace Elliot, the company builds everything from lightweight gigging heads to hand-wired UK flagships, and its artist roster reads like a who's who of bass: Geezer Butler, Shavo Odadjian, John Myung, Rex Brown, Guy Pratt and Adam Clayton among them. If it has a VU meter and it makes the room shake, it's probably an Ashdown.