Rekordbox DVS & DJM-750m2 not Working

 Hi There,

I have just recently purchased a DJM-750M2 and have downloaded the rekordbox DVS system and used the bundle keys to access DVS and play on my Stantons ST-150's. 

I have downloaded all the drivers to my macbook air (mac Os Sierra - version 10.13). I've also downloaded the driver for the DJM-750 but it's still not recognising the audio.

I have accessed preferences / audio to change to the DJM-750 but it's not recognising the mixeer and stating "Built In Output". 

Pretty Frustrating - I have the relevant products (softwae / hardware), will look to move back to serato if not recitified soon.

Cheers,

Pete