 Defeated Sanity is a German technical death metal band from Dachsbach , Bavaria , that was formed in 1994 , originally as a side project of guitarist Wolfgang Teske and his son , drummer Lille Gruber . Gruber is the only original remaining member left in the band , following the departure of Teske in July 2008 . The other members are Christian Kühn ( guitar ) , and Jacob Schmidt ( bass guitar ) . For almost a year the band was looking for a new vocalist , due to Jens Staschel leaving the band shortly before Teske ; Staschel 's replacement , A.J. Magana from Disgorge , was announced in June 2009 . 
