“This is your chance to own the sound that defined heavy metal”: Reverb and Ashdown are selling bass amps used by Geezer Butler during rehearsals for Black Sabbath’s final show

Geezer Butler performs on stage during day one of High Voltage Festival at Victoria Park on July 24, 2010 in London, England.

[Update 10.08 – An earlier version of this story stated these amps were played by Geezer Butler at Back to the Beginning, Black Sabbath's final show. Butler has since posted on social media to say these amps were used in rehearsals and not during the show. Butler also says he is not involved in the sale of the amps.]

Ashdown and Reverb are teaming up to sell a collection of amps that Black Sabbath's Geezer Butler played during rehearsals for the band's epic finale, Back to the Beginning.