Frank Marheineke alias Mainframe, producer and engineer of drum and bass acts like Megashira, Makai, MK2 and Kabuki, is founder of the labels [l134], [l4554], [l9019], [l48341] and the agency Broken Beatz Entertainment. 2001 he established the [l309450] audio mastering facility in the city of Frankfurt, Germany. 2016 his company became part of the b9 Studio complex and is working there as professional recording, mix and mastering engineer as well as music producer. Initially 2019 he founded the musiclabel and digital distribution company Origin69 featuring Hiphop Music and rap artists from the area of Frankfurt that were essentially recorded and produced in his studio.