So, I've been using my dragonfly with my powered PC speakers for months now and I've been thrilled with it, zero issues to speak of.
Tonight I tried running it to the new Asgard 2 headphone amp I just purchased (using it low gain mode with 24ohm, 107dB sensitivity headphones), and when I have no music playing, I notice that when the volume knob reaches the 10-11 o'clock position I start to hear a buzz/hum coming through the headphones. It increases as I turn the volume knob up more.
It's not a huge deal for most music, but for songs recorded at lower levels or for quiet passages the background noise can definitely be noticed. Just wondering what I can to do mitigate it, short of a 3 -> 2 prong ground lift adapter on the Asgard 2. Maybe I need something like this?? http://www.musicdirect.com/p-160962-...er-supply.aspx but honestly for the price of that, I should just get a DAC that supports an optical input.
Just surprised since I thought one of the dragonfly's selling points was that it was a higher quality output than a standard PC soundcard.