DJ Critikal is the founder of A-Rühm
He also owns a record label called Mindnote. Discography:
"Beat Physics", CD - 1998
"Check 101" With S.I.N. CD - 2000
"Hip Hop Ambulance", mixtape MC - 2001
"For The Listeners" mixtape MC - 2002
"Chapter One ehk Teine Maitse" CD - 2005
"Iizinotemix" CD 2006
"Mixtape (esimene eestikeelne)" (the first estonian mixtape) - 2006
http://myspace.com/djcritikalestonia

Read more about DJ Critikal on Last.fm.