The next step to a better system

I like the idea of the cambridge 851D and the similar Sony, but I feel constrained by such a unit.  I like the idea of a separate DAC and a separate streamer or small computer.  For now I use a mac mini and external HD to stream to my PS Audio DAC.  I am using Tidal hifi as well as my own ripped CD collection all controlled by Roon, which I adore.  Who knows, in the future, I may opt for a streamer such as an auralic or a blue sound instead of the mac mini.  I think that the ability to change the streaming style and software is nice to keep independent from the DAC.  In my case, I may want to change the streaming part and keep the same DAC or vice versa, and at different times.  All that said, that seems like a killer deal on the 851D that you found!  Almost too good to pass up, and just try on for size.  It will be challenging to find a quality DAC and decent streamer that cheap. (though possible I guess with a used Bluesound Node version 1 and a used, reasonably priced DAC).

Seems like a great deal on the 851D! Upgrading your CD player and allowing for computer access in one box. Minimizes cable needs also. Does this unit have USB input? 

It does have a USB. But now another decision... The Cambridge 851D or the Oppo 105?

The 851D is a DAC and preamp… no cd.

The 851C is a Dac and cd player.

I currently use a Play Station-3 for dvd / blueray and am very happy with the results. I'm more interest in the DAC for my 2 channel system.

I believe the Oppo can run DSD but the Cambridge does not. Don't actually know what that is or if I would use it.

I suspect running my Onkyo cdp through the Cambridge would significantly upgrade the sound qualities coming from it.  

Sorry,i was confused with the 851C.  I also believe using the 851D as DAC with your Onkyo would be an improvement. Use a quality 1.5 meter coax cable. 

In as much as I believe the 850D represents good value at your quoted price, if you are not interested in having preamp function, there are many DAC options available for ~$800.

My limited attempt at describing DSD. DSD is direct stream digital with bits delivered 1 at a time at very fast rates, as apposed to PCM which is Pulse Code Modulation where bits (1s vs. 0s) are served in bytes (8, 16, 24 32) at different sample rates (44.1, 48, and multiples thereof). PCM serves redbook CD and internet streaming, DSD serves SACD and other forms of hi-rez file formats. There are several other on this forum who could provide a better explanation.