linking two VS-1680's

[jal]

i was wondering if any of you folks have heard if you can link two VS-1680's together. Cause i tried and it works like every once in awhile i usually have to hit return to 0 on both the master and the slave. Did i hook it up wrong or is this what i have to deal with? thanks.

[reco]

well do you have it hooked up right?
Digital out from first 1680 to digital in on second 1680, then out from second to first in, then midi out from one to in on second...