Synology NAS is compatible to certain Denon/Onkyo networked avr however you still need a PC to manage or control your playlist and files. http://www.synology.com/support/faq_show.p...id=298&lang=enu

I'm streaming lossless music file to an Int. Amp in WIFI connection using Synology NAS.
I'd suggest to add Squeezebox [or costly Sonos] if SQ is matter to you since you have dedicated HIFI gear rather than streaming music to an avr.
Synology NAS has built-in squeezebox server so you don't need a PC to manage your playlist anymore. There're plenty more advantages & flexibilities using Squeezebox.
http://www.synology.com/apps/packages.php?lang=enu

I also have a Dune HD Max but never tried to stream video using Synology NAS coz it's only a 2-bay model. Like other said, it's costly to me for video storage using NAS.

Sonos er.. ..

Streaming from NAS direct into yr 4311 using DLNA is the simplest way to go but it leaves no room for DAC. Agreed with ADJ, you end up need a music server if DAC is in your plan. That comes NAS > MUSIC SERVER > DAC > PRE/POWER. Finding a powerful yet user-friendly music server is the most essential part out of the others by considering your requirements. Once you've determined your music server, just find a compatible NAS to work with it at ease becasue eventually you don't work with the NAS but mainly the music server thingy for music playback. Since you have a Sonos and I'm sure it's 100 times better than Dune to act as a music server so why not give it a try with a compatible NAS such as Buffalo?

Wah, simultaneous multitasking not only bandwidth dependent but also depends on the NAS's processor. Look for a higher spec processor otherwise your NAS get high blood pressure..

Hi Owen, I'd suggest to upgrade the firmware to the latest and try all again. Personally I also agreed with u tat the image sharpness is inferior when I'm comparing it with Dvico. I use PS Audio power cord and it does improve the image sharpness significantly over a 92" white screen. Hope it helps..