The Spektrum arose in October 2005 in Leiria, Portugal, when a group of friends with similar musical influences formed the band. The original members of the band were Dyrion - Vocals, Engraved - Guitars, Abigor - Guitars, Zouzahammen - Bass, and Lulu - Drums. The band started to play Thrash Metal, but later, in January 2006, unsatisfied with their music, the band decided to change their style. Samnu joined in as the keyboarder and the band started composing new stuff, a more melodic metal. Beginning 2009 the band signed a two years record deal with metal label NoiseHead Records from Austria.