Do I really need a DMP-A6 ME or A8 or will an A6 work

Hi,

Is the bump from A6 to A6 Master Edition mostly about internal DAC enhancement and more with A8 plus additional connections on the back? If all I want is the music streaming services (Ethernet Connection), CD playback/RIP/Storage and external audio out for external DAC, will the A6 do everything the same as the A6 ME and the A8?

Thanks