Allen & Heath SQ MADI 64x64 MADI Interface CardSQ MADI provides any SQ mixer with a 6464 MADI interface running at either 48kHz or 96kHz. Two BNC inputs pair with two BNC outputs to allow for split or redundant setups while a dual function (in out) BNC Wordclock connection enables the console to sync with other equipment. SQ MADI enables connection and synchronisation with broadcast or recording systems, OB vans, and third party consoles for high channel count feeds over coaxial cables.