Originally Posted by micksaddress
im pretty sure the sansa clip cable is a USB 'B' cable... could that be the issue?
I am not sure to understand what type of cable you use.
A standard USB DAC like the iBasso D2 operates only as a USB peripheral. It only interworks with a USB host.
The Nexus 7 is a USB On-The-Go device.
A USB OTG device can act as a USB host or as a USB peripheral.
Simply put, a USB OTG device, like the Nexus 7, acts as
. a USB peripheral when a Micro-B plug is inserted [regular cable]
. a USB host when a Micro-A plug is inserted ["OTG cable"]
Nexus 7 as USB peripheral:
. Nexus 7 – regular cable – PC / Mac as USB host
. Nexus 7 – regular cable – upcoming specific Android Jelly Bean-compliant USB DAC as USB host
Nexus 7 as USB host:
. Nexus 7 – "OTG cable" – USB mouse as USB peripheral
. Nexus 7 – "OTG cable" – standard USB DAC as USB peripheral
An Android device is often connected to a USB DAC by a combination of two cables:
. OTG cable: Micro-A male to Type-A female USB cable
. regular cable provided by the USB DAC manufacturer: Type-A male to Mini-B male USB cable