is there any way to record channel 0 on 721?

[daliceman]

i have an external signal i would like to send to the dvr... is it possible?

[BobMurdoch]

No.

It is only a passthrough. You cannot process the information.

[Mark Lamutt]

The same holds true for the 921.

[Kagato]

And even as a passthrough the inputs are subpar. The audio is really prone to clipping.