I wanted a bluetooth adaptor which outputs USB output so that I could connect it to my Cambridge Audio Amplifier CA651A which has a USB input.
Had a raspberry pi lying around, used it with a IO-Gear BT GBU-521 dongle and followed the instructions at the link below:
Turn your Raspberry Pi into a Wireless Portable Bluetooth Audio System A2DP
[see also readers comments at the bottom of the link for instructions on how to route the audio to USB]
Was able to transmit a BT audio stream from my iPhone 6 with no issues.
Should also work with other USB DACs.
Had a raspberry pi lying around, used it with a IO-Gear BT GBU-521 dongle and followed the instructions at the link below:
Turn your Raspberry Pi into a Wireless Portable Bluetooth Audio System A2DP
[see also readers comments at the bottom of the link for instructions on how to route the audio to USB]
Was able to transmit a BT audio stream from my iPhone 6 with no issues.
Should also work with other USB DACs.