Actually what Sam wanted was to stream through the USB player so that we can use the tab connected via wireless to the has and through the USB otg cable for connecting to the DAC. Well I am also interested in the same thing. Let's see what happens.
xbmc for android supports both NFS and SAMBA and am using it to fetch data from my NAS with multiple devices. I am not sure if USB audio device is supported though. Do check both Frodo and Gotham versions for USB audio support if you give it a try.
With latest android 4.4 (kitkat) USB audio devices are supported system wide, means once you plug them default android media player can playback through DAC. I recently upgraded to kitkat and now I can use my Fiio E17 with Play music, mxplayer and other apps, even system clicks are routed through DAC.
With latest android 4.4 (kitkat) USB audio devices are supported system wide, means once you plug them default android media player can playback through DAC. I recently upgraded to kitkat and now I can use my Fiio E17 with Play music, mxplayer and other apps, even system clicks are routed through DAC.
I have Motorola Atrix HD, running AOKP rom, With stock rom (4.1) when i connected fiio e17 it was identified as dac, means all sound output was sent to dac but dac didnt play it, means there was some software problem, after this upgrade sound output is fixed. Though you are right it depends on device, but most of the devices which supports usb host mode can support usb audio. Though android had added support for USB audio from 4.1, i feel implementations are not perfect, try different custom roms, see which works for you.This is not true for all devices. Not yet. And for those devices which support native USB streaming (like Galaxy S2), kit-kat is not necessary, it worked even with Jelly bean.
Which android device you have? I had upgraded to Kitkat on my nexus 7 (2012) tab but it wouldn't work on default music player.