Squeak,
will do.

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Leon,
I own an R 8 (including 12 rom cards)since it came out (1985). There's no problem connecting hardware/hardware, but the R 8 is very tricky hooked with more as one device and even more with a PC.
The R 8 was one of the reasons I bought a midipatchbay to have better control.
(which I still consider the best buy I did ever anyway.)
And the R8 can send sysx (amazing for a 1985 machine) on any channel
But to do this you have to select the channel and press a button. It won't send automatic.
One of the main problems are the not so clear manuals , which I would say need a lot of knowledge of midi first before you understand what they are talkin' about.

Fortunately the two button factory reset usually works flawlessly..