Elektron Musical Instruments

Hi guys

I am having trouble syncing machinedrum to logic using logics midi clock, so i decided to 
use machinedrum as the master as it advises in the manual. I just cant work out how to do it. 
I have an mt4 midi interface using a mac g5 and a mackie onyx soundcard. Can anyone help 
who has had this problem before.

Thanks Matt