Warp is to re-release its first ever albums to celebrate 20 years since they were first released.

LFO's Frequency and RetroActivity from Sweet Exorcist will drop (once again) on November 4 in extended form.

The Sweet Exorcist album was originally called C.C.C.D., but will be re-released as RetroActivity with an extra disc of tracks thrown in.

Meanwhile, Frequenies – also renamed – will feature all the original tracks, alongside an 'extra loud' vinyl release with two additional tracks.

For details, check out www.warp.net