The Roland Alpha Juno 1 is an analog polyphonic synthesizer manufactured between 1985 and 1986. It features one Alpha Dial that controls multiple parameters, as well as MIDI In, Out, and Thru functionality. It is well know for its use of digitally controlled oscillators in conjunction with analog filters. The Alpha Juno 1 is famous for the "hoover" sound used in early 90's techno. It is a very distinctive sound and hard to reproduce on other synths.
Watch some old Prodigy videos and you might see this synth on stage.
Future Music - 1st February 1993 Prodigious talent
Sound On Sound - 1st October 1996 Liam Howlett • The Prodigy & Firestarter
Power On - 1st January 1999 Catching Up With The Prodigy
Future Music - 1st December 2000 DIY Prodigy
Sound On Sound - 1st October 2004 Liam Howlett: Recording Always Outnumbered, Never Outgunned
Korg magazine - 29th November 2004 Never Outgunned: Liam Howlett
Keyboard Magazine - 1st February 2005 Trim the Fat
Sound On Sound - 1st October 2010 Jon Burton: Mixing & Recording The Prodigy Live
MusicTech magazine - 18th May 2015 Landmark Productions: The Prodigy – The Fat of the Land
MusicTech magazine - 30th July 2019 Prodigy engineer/co-producer Neil Mclellan remembers the Jilted Generation sessions