I'm writing here in order to find someone that has come to the same problem as me. Last week I bought an Audioquest Dragonfly and it worked great with various sources and bitrates. But yesterday when trying my new HD650 headphones with the Dragonfly, it stopped working with audio files and stream radios with a bit rate greater than 44.1Khz.
Have tried with direct Windows drivers, with ASIO, in a Windows 8 and an XP, and still nothing. Even tried with a Macbook Pro and same results.
I am almost convinced it is some kind of hardware failure, so next week I will go to the shop for an exchange. But what worries me most is if I have done something wrong while using the Dragonfly. For example, removing the USB device with the computer on, or plugging my new HD650 headphones in it.
Has anyone experienced something similar?