Paulq said:
My previous post aside (when I thought the OP was dead set on a streamer), this is very good advice. The gains you will hear will be so miniscule that it's simply not worth it and you can get lost in striving for perfection without realising what you have is already very good.
Make yourself a brew, stick a CD on and enjoy what you have. You have a setup that many would be envious of and already have a streamer to go down the NAS route if you decide to. That's the most I'd change. Honestly, save your money.
I have always believed that people need to find their own path, through listening for themselves.
There are those who think DACs and Streamers make little difference - and certainly not worth spending much money on....and there are those who, after listening to a variety of stuff, feel that spending a bit more brings worthwhile benefits.
At the end of the day, either approach is fine by me - and imo, a decision shouldn't happen as a result of what someone (anyone) on a forum says....but as a result of trying different alternatives.