ADAT INs = Distortion (solved!)

[Rockum]

I have 3 MOTU 2408's connected to a DM4800. Tracks coming into the DM4800 via TDIF sound great, but when I send tracks via ADAT, I get nearly total distortion. When the track is played with the master send at 0 db, I can make the track out although it is pretty distorted. If I turn the track up a bit it goes to total, clip-busting static. The digital trim on the inputs are set at 0 db. I might be wrong, but I don't think clocking is the problem. Everything is clocked off word clock at 41.1.

More details: __________________________
All three MOTU 2408 units are setup as follows.

Bank A
TDIF IN/OUT <-> 4800 TDIF IN/OUT

Bank B
ADAT IN from external gear
ANALOG Out

Bank C
ADAT IN <- 4800 ADAT OUT
ADAT OUT -> 4800 ADAT IN

 

[Layer-Status]

Re: ADAT INs = Distortion

Hi

I have a similiar setup. I have the same problem with a ADAT card.

My solution was to sync the MOTU via ADAT from DM 3200.

Best regards

 

[Rockum]

Re: ADAT INs = Distortion

That direction didn't work with me, but clocking the DM4800 from a 2408's ADAT did. Thanks for the help.

 

[B2RPW]

Can I ask a silly question? Why do you need the 2408s in front of the dm 4800? Is it just better A/D converters?

 

[Layer-Status]

Hi

I use it only for additional I/O (+ 8 Analog I/O or you can switch between different I/O of ADAT or TDIF, that means you can connect 6 different gear and then you can switch them. This is comfortable when you don't have good acces to the connections)

Best regards

 

[Will Miho]

Not, as you have it set up, for 40 channels of recording and playback?