The 5i does not have digital outputs. I looked at this DAC previously and while I think it sounded fine in an all Naim (save speakers) system, in my system it sounded too dark.
I have not done a comparison to the Naim, but the Cary 308 is a nice player, the 308T even better, but a few hundred dollars more if I recall.
I have not done a comparison to the Naim, but the Cary 308 is a nice player, the 308T even better, but a few hundred dollars more if I recall.