Uriah Heep (band) recording of the album, drummer Alex Napier was replaced by Nigel Olsson, recommended to Byron by Elton John. The debut was not popular with rock critics (especially in the USA where "Rolling Stone" reviewer Melissa Mills infamously promised to commit suicide "if this band makes it") but in retrospect the attitude towards it changed. "Those unfamiliar with Uriah Heep may want to try out "Demons and Wizards" or a compilation first, but anyone with a serious interest in Uriah Heep or the roots of heavy metal will find plenty to like on ..."Very 'eavy ...Very 'umble"," advised critic Donald A.
Heavy metal bass large drum kits used in metal, metal bassists typically use large bass speaker cabinets stacked on top of each other–"bass stacks"–powered by high-wattage amplifiers. Traditional heavy metal bands were early users of "bass stacks". Bassist Alex Webster from the death metal band Cannibal Corpse plays with two 8x10 speaker cabinets (each cabinet contains eight 10" speakers). One early bass stack was the 300-watt Super Vacuum Tube (SVT) amplifier head, which was intended for large performance venues. The SVT was intended for use with one or two speaker cabinets containing eight 10" speakers. Some metal bassists use vacuum tube amplifiers, which