Ashdown Geezer Butler Head of Doom, 600-watt bass amplifier head, USED

The Ashdown Geezer Butler Head of Doom is a 600-watt bass amplifier head designed in collaboration with Black Sabbath’s legendary bassist Geezer Butler. Known for his dark, heavy bass tones that helped define heavy metal, Butler’s signature amp delivers the power and tonal versatility needed to achieve everything from deep, thunderous lows to aggressive midrange punch. The Head of Doom combines modern amplification technology with classic tube-like warmth, making it an ideal amp head for metal, rock, and even more nuanced styles.

At its core, the Head of Doom features a robust 600-watt power section, providing plenty of headroom and low-end power for live performances in large venues or festivals. Its MOSFET preamp section emulates the warmth and responsiveness of a traditional tube amp, allowing bassists to dial in the growl and grit that Geezer Butler is known for. The amp's tonal controls include a 9-band graphic EQ, offering extensive control over shaping your sound, making it easy to tailor your tone to any stage, setup, or genre.

The amp also comes equipped with a passive/active input switch, catering to both passive and active basses. This flexibility ensures that players can plug in a variety of basses and still maintain optimal signal quality. Additionally, the Head of Doom includes a dedicated overdrive circuit, allowing players to blend in as much growl or distortion as needed, perfect for dialling in a heavier, more aggressive tone.

Built with rugged construction and designed for the rigours of touring, the Ashdown Geezer Butler Head of Doom features a sleek black design with Geezer’s iconic logo. This amp is not just about raw power; it also offers refined tonal control, making it a versatile option for bassists looking for a mix of modern functionality and classic, doom-laden tones. Whether you’re playing metal, rock, or any genre requiring a commanding low end, this amplifier head delivers powerful performance with Geezer Butler’s unmistakable sonic signature.