HI thanx for the fast replay, awesome.
Ok There're three TDIF ports on the DM, from factory , they correspond 24 ins and outs, the x48 has six TDIFS ports corresponding the 48 tracks, so if I want to use all the tracks on the x48 I would need thee extra cards right ?
Ah - now I understand. Yes, you would another device to handle the rest of those channels. Look for Tascam DA8 for outputs, and Tascam MA-AD8 for inputs - they are a very economical choice, but you would need three of each device. Thats a bit space consuming hardware. I have two DA8, one MA-DA8, and a Motu 2408mkIII.
You could look for other options, but TDIF isn't used very much - I think it is completely unsupported by new gear, but may be wrong on this.
The FW card, I was thinking, hook it to my Audiofire 12 cards ,I have three of them making 32 analog ins and outs and use them as ,,,soft inserts,,,when mixing down, you know for all the outboard gear I have,,,should be possible right ?
Rod
By Audiofire you mean Echo Audiofire 12?
So let's see:
Your DM's firewire-card has 32 channels I/O (mkII, otherwise 24).
You also have three TDIFs with 8 channels each.
So, to begin with, you can only get 24 channels to your DM via TDIF, no matter what. You COULD however route physical outputs from your Audiofire to your DM (and use the TDIFs intermittingly between Audiofire and X48), resulting in 24 physical inputs plus 24 inputs via TDIF. In this scenario only your outputs would be a problem, though you could solve this with three units of the Tascam Da8, giving you 24 physical outputs.
However, if you want to rout 48 signals to the DM and work within the console, you should be fine. But: if you want to route them to the DM AND pass them on to a PC (your DAW of choice), you would be limited to 32 channels I/O, where the IF-FW/DM would be the bottle neck, setting you a limit.
TDIF-ports and FIrewire card are seperate units that are not in touch with each other unless you want to pass TDIF signals to another digital device like your PC. Then you cannot ommit the restrictions of the card, and your down to 32 channels.