decibel scales. Therefore, the decibels on the following list are not necessarily comparable to each other. 1972 Deep Purple was recognised by The Guinness Book of World Records as the "globe's loudest band" for a concert at the London Rainbow Theatre, during which the sound reached 117 dB and three members of the audience fell unconscious. 1976 The Who were next to be listed as the "record holder" at 126 dB, having been measured 32 metres (105 feet) from the speakers during a concert in London at The Valley on 31 May 1976. 1984 and 1994 The Guinness Book of World Records listed Manowar as the loudest band for a performance in 1984. The band claimed a louder measurement of 129.5 dB in 1994 at Hanover, but Guinness did not recognise it, having discontinued the category by that time for fear of encouraging hearing damage. 1986 An article by Scott Cohen appeared in February 1986 issue of Spin entitled "Motörhead is the Loudest Band on Earth". In it, Cohen alluded to an undated concert during which Cleveland's Variety Theater actually sustained damage from Motörhead reaching a decibel level of 130. This he reported was 10 decibels louder than the record set by The Who. 1990 The 1990 edition of the Guinness World Records contained the following entry: Largest PA system: On August 20, 1988, at the Castle Donington "Monsters of Rock" Festival a total of 360 Turbosound cabinets offering a potential 523kW of programme power, formed the largest front-of-house PA. The average Sound Pressure Level at the mixing tower was 118dB, peaking at a maximum of 124 dB during Iron Maiden's set. It took five days to set up the system." 1996 The English House/Electronica band Leftfield, while on tour to support their debut album Leftism, gained notoriety for the sheer volume of their live shows. In June 1996, while the group was playing at Brixton Academy, the sound system caused dust and plaster to fall from the roof, with the sound volume reaching 135 dB. 2007 British punk band Gallows allegedly broke Manowar's penultimate record, claiming to have reached 132.5 dB; however, this record claim was made in an isolated studio as opposed to a live environment. 2008 Manowar registered an SPL of 139 dB during the sound check (not the actual performance) at the Magic Circle Fest in 2008. 2009 On July 15, at a Canadian concert in