Erica Dunham, better known by her stage name Unter Null, founded the solo aggrotech music project in 1998 at the age of 17, while living in Seattle, United States.

[5] Unter Null (German for 'below zero') initially began as a powernoise project influenced by a number of similar prominent artists, including Noisex, Converter and P.A.L.

[10] In early 2008, Dunham launched her side project Stray[11] with the release of the self-titled a 2-CD album in cooperation with a number other bands including Mothboy, Detritus and Testube.

On December 25, 2008, Dunham's studio, containing her musical, recording and electronic equipment as well as other belongings, was destroyed in a fire.

It was feared at first that her newest album, Moving On,[12] had been lost in the fire, although tracks were able to be recovered from a damaged hard drive.