[oisteink]

You need a kernel with usb_audio support. There are one for the Nook, but I don't know about the tab. Ask on xda?

 

[Mauricio]

Forget USB, lose the wire.  I want the digital out via Bluetooth to the DAC.  Extremely few DACs with Bluetooth?  Well yeah, this is another area where Cambridge Audio is ahead of the game, and most others are still asleep.

 

[DanBa]

 
Quote:

trying to revive, anyone tried with the ICS Roms?

 
The first out-of-the-box (i.e. without modding) ICS Android device able to output USB audio is the Android 4.0 ICS powered Archos G9. 
http://www.engadget.com/2012/03/15/archos-80-g9-turbo-ics-tablet-now-shipping/
http://update.archos.com/9/gen9/changes_firmware_archos_android_gen9it4.htm
 
For the time being, the standard USB devices for USB host-capable Android devices are only USB hubs, USB mass storage devices and USB class for human interface devices (for example, mice and keyboards).
 
There is an ongoing lobby requesting Google to impose USB DAC as a standard Android USB device, like a standard USB device for every Mac or PC (i.e. we don’t have to request each individual PC manufacturer to add the USB audio capability).
http://code.google.com/p/android/issues/detail?id=24614&sort=-stars&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars
 
Vote: Click on the star (it appears after signing in)

 

[Gladzilla]

i haven't put ics on my tablet yet because none of the tablet Roms on ics support the camera