Just when you thought every holy grail must have been unearthed by now, here come Basic Unit with their deep cover late 90s masterpiece Timeline, the dankest darkcore-electronica-tech step album you've likely never heard.

Ben England and Rick Dallaway formed Basic Unit and debuted on Moving Shadow in 1997. They also moved on Nocturnal, a cult label that reached beyond D&B to platform some more experimental sounds. It was a short-lived label with some ominous footnotes — 'Several people involved with Nocturnal have vanished or are dead' reads the label's Discogs description. But in 1998 Nocturnal put out Timeline, a CD-only album from Basic Unit that cut a sharp, scathing figure against most D&B of the era. England and Dallaway embraced the album format as a chance to go deep, inhaling their inspiration from early days Autechre as much as Source Direct and boiling down the results to a steely, minimalist framework.

The likes of 'Resolution' are desolate, stark workouts that feel fractured and raw enough to align with early grime, complete with the strings, but the rhythms move in mysterious formations designed to confound like the most bloody minded electronica artists of the late 90s. Blown out bass and scattered flurries of machine gun breaks, squashed tundra drones that sound like they were pulled from 10th generation VHS b-movies and bit-crushed animal grunts fit for a Mega Drive beat 'em up. The sonics are redolent of the times, but Basic Unit chisel them mercilessly into their spartan vision, deploying brain-frying beat science with a stern restraint.

It's the kind of record that gives so much while holding so much back — a deadly tease that has flown under the radar for too long. This is the sort of shock reissue material that gets us gassed at Sneaker, and we're proud to be giving it a re-boost and a first ever outing on wax, all the better to shock you out.