Phasechange was founded in 1999 by Amanda Wilson and Justin Gagen to facilitate releases by their music project, Redzone.

After a dozen albums, a DVD, and a number of E.Ps and singles, the final Redzone album (`cracked') was released in 2016, after which the label was placed on hiatus.

Wilson released two solo albums (as Kassia Flux) on the Linear Obsessional label in 2018 and 2019. Shortly after completing recording for her third solo album, Wilson passed away in 2020; the album will be released in the near future.

Phasechange is being relaunched in order to ensure that Wilson's body of work, both solo and collaborative, remains available. A number of other releases are also in the pipeline for 2021 and 2022.