Ashdown Geezer Butler Combo Of Doom - bass amplifier

The Ashdown Geezer Butler Combo Of Doom is far more than a powerful bass amplifier – it is a tribute to one of the most influential bassists in rock history. Inspired by Black Sabbath's legendary farewell concert in Birmingham in July 2025, this Signature bass combo was manufactured in the UK in close collaboration with Geezer Butler. Its distinctive purple finish with black Black Weave grille cloth recalls the stage cabinets specially developed for the occasion, making the combo a genuine collector's item for fans and bassists alike.

With an output power of 200 watts and a high-quality 12" Sica speaker, the combo delivers a powerful, dynamic bass sound with rich lows, punchy mids and clear highs. Whether in the rehearsal room, on stage or in the studio, the Combo Of Doom provides a powerful tonal foundation that can be flexibly adapted to a wide range of musical styles.

For quick and effective tone shaping, the amplifier features a 5-band EQ, Pre-Shape switch and Pre-Gain control. The integrated tube-emulated drive section also provides warm overdrive sounds with the characteristic growl that Geezer Butler has been known for throughout his career. An Active/Passive switch allows the amplifier to be optimally matched to different bass guitars.

The combo is also professionally equipped when it comes to connectivity. A balanced XLR DI output allows direct connection to a mixing console or audio interface, while the serial FX loop integrates external effects. A Line In is ideal for practising with backing tracks, and the headphone output with automatic speaker muting allows for silent practice at any time of day.

The Ashdown Geezer Butler Combo Of Doom combines British craftsmanship, a distinctive Signature sound and exceptional design in an amplifier that stands out from the crowd both sonically and visually. With a worldwide production run of just 70 units, it is also an exceptional collector's item for fans of Geezer Butler and Black Sabbath.

Product Details

• Limited to only 70 units worldwide, Made in UK
• Geezer Butler Signature bass combo
• Made in the UK
• Output power: 200 watts
• 1 × 12" Sica speaker
• Purple finish
• Black Black Weave grille cloth
• Tube-emulated drive/overdrive circuit
• Pre-Shape switch
• 5-band EQ
• Pre-Gain control
• Active/Passive input switch
• Balanced XLR DI output
• FX loop (TRS)
• Line In
• Headphone output with speaker mute
• Suitable for stage, studio and rehearsal room use
• Weight: 17.14 kg