Radial Engineering Radial JD6 6-ch passive DI for keyboards, 1RU 19" rackmount, 1/4" & RCA inputs. Part of our AV Components range (audio processing & control), supplied through AV Distribution, an authorised South African distributor for professional audio, video and staging equipment. Available to order -- contact us for lead time. Contact our team if you need help confirming compatibility with your existing setup.