are we talking 'studio' or .. capable of making a noise ?
I used to run the below into a fostex via some really shit radio shack effects and use tons of bounces. that was about 1986
I used to sequence the casio using the 505, I assigned midi notes to the drums and that was my sequencer AND drum machine!!!
the greengate DS3 and Apple IIe is a whole other story
I did gigs with that setup !

apart from the apple - that was going nowhere.
the 505 and casio were some hot high tech shit to me then. took me 2 years to pay off that drum machine
just looking at the picture now still makes me feel sick. god I
hate those drum samples. The casio still rocks