I have used the DLNA compatibility to wirelessly stream music off of a Sony HAP-Z1ES server, but I found that I greatly preferred the sound quality of something directly connected to the unit (like a CD player or music directly off a USB drive). However, the Sony is not known for having a really clean digital output, so my results are certainly not conclusive. I do like the built-in internet radio feature.
I have hooked up a Holo May dac and Marantz SA-10 CD player to the Technics, and IMHO the sound is improved over feeding it a digital signal, but only slightly. With my regular amp and preamp, the Holo May will make some digital recordings sound as good as reel to reel tape or an excellent vinyl system. When played through the Technics, the sound of the Holo May is changed into something resembling a delta-sigma dac type of sound.
I have hooked up a Holo May dac and Marantz SA-10 CD player to the Technics, and IMHO the sound is improved over feeding it a digital signal, but only slightly. With my regular amp and preamp, the Holo May will make some digital recordings sound as good as reel to reel tape or an excellent vinyl system. When played through the Technics, the sound of the Holo May is changed into something resembling a delta-sigma dac type of sound.