Upgraded from FF400 to a glorious UFX so I could have more I/O , so I'm now using the FF400 and an Ad8000 as Adat slaves.
Everything is pretty much working Ok but one thing is driving me crazy !

I wanted the extra I/O so that I could integrate more hardware synths and effects but i'm having problems in this department. Everything works as expected in the UFX , I can use ReaInsert in Reaper to send and recieve through hardware effects plugged directly into the analog and AES I/O but I can't seem to get a similar system going with the FF400 Adat I/O. For instance I have my Moog Voyager outs plugged into inputs 7/8 on the FF400 and these come up as adat 7/8 on the UFX firemix, all works as expected .  i also have the outs of FF400 7/8 connected to the audio input of the Voyager so I can use its filters occasionally. Problem is that when i try and use ReaInsert in the same way I would with the UFX analog I/O I can't get it to work properly at all and its driving me bonkers.

So the question is , is this a limition of adat slaving ( ie the signal can't pass straight through ).....or am I just really stoopid and have failed to set it up properly.
I would however add on a side note that the FF400 tends not to always retain its mix settings after I set them up with the firewire connected, but I've also tried a similar set up with an old Motu 828 mk2 with a similar lack of success ( havn't tried the Ad800 yet because it only has xlr outs and i don't have the appropriate cables handy )

I'd appreciate any suggestions.

cheers
Pendle