Doepfer

> I have the A190's midi thru jack wired internally to the 
> A191's midi in jack with two short lengths of wire. That's been 
> working fine for a couple of years.
> 
> So now I'm thinking that if I connect a cable from a rear-panel DIN 
> socket to the terminals on the A190's midi in jack, whatever opti-
iso 
> stuff is going on should be preserved. Do you think?

Yep. As long as you connect pin-for-pin (pins 4 and 5), like you have 
obviously had to for the 190-191 connection, you should be OK.

Tim