Sub Heavy Audio is a drum and bass label that began in 2015, and its records have been picked up by channels such as Drum&BassArena, UKF Drum & Bass and Skankandbass. Conrad Subs is one of its regular names, starting with the 2019 single Smash / Sayonara.
The Recycled series has run to at least seven volumes; the seventh, from 2025, brought together Conrad Subs, Damageman and Flat T. MC Boogieman, Trauma DBC, Joanna Marshall and GGrossy have also released on the label, which mixes singles with EPs such as Mission E.P and Brain food E.P.
