Connecting 2 8pres to an 896mk3

[mn0001]

I have successfully had an 8pre connected to my 896mk3 via adat lightpipe providing me total 16 inputs. I recently got another 8pre and connected up via adat to the adat b connection on the 896 and noe I hear a pusing sound coming from my speakers. I think it is a synchronization issue but I cant seem to figure it out. They all are operating at 44. How can I get all 3 of these to play nicely together so I get 24 inputs, 8 via firewire and 16 via adat lightpipe, without the hissing pulsating noise??

[HCMarkus]

Clock both 8pres from the 896 by using an ADAT litpipe from the 896 to each 8pre and slaving the 8pres to the 896 clock.

[mn0001]

Sounds great, thanks you for the reply! Now how do I do that? I would imagine I need to conenct each 8pre via firewire and make some changes in the settings but I am unsure which changes need to be made so that they will be slaved to the 896 clock.

[mandobilly64]

I think you would find this in the Motu Audio Setup program, set clock to internal on the 896 tab.

[tristep]

Also in the Motu Audio Setup program, set clock to optical on the 2 pre's tab.
and connect via optical 896's out to both 8 pre's in.

[linu]

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