I have a question for yall.
So my most favorite DAC is the ODAC(hopefully you guys are familiar with it). The problem is, the ODAC functions best if it gets sufficient current, and it sound great with my desktop computer. I tried it on my Samsung Galaxy S4 and it doesn't sound the same. I believe the phone is current limiting it, which makes sense as it would drain the battery in a short time if it didn't.
So my question is, is there rechargible usb hub that supply sufficient power to the ODAC and also accept data from the Galaxy S4? So the power connections from the usb go to the rechargeable usb hub(doesn't have to be a hub, but it has to supply sufficient power to the ODAC), and another separate cable that splits off that goes to the Galaxy S4 for DATA input to the ODAC.