Sonic Defender
Headphoneus Supremus
@ImperialBlade, what is your top dollar you can invest in the DAC/amp? Sure I am biased, we are all biased toward our own gear, but if you manage to find a Yulong A18 used at a good price jump all over that opportunity for certain (assuming the condition is good of course). I got very luck buying mine used from a member here who treated it really well and sold it for an extremely fair price as he was going into top-tier tubes for his HD800. One of the best purchases I have made without a doubt. Compact footprint, well designed, good looking to me, and a solid performer. Yes it would be nice to have an extra watt output, but I feel the A18 powers the 560s extremely well and the synergy strikes me as top notch. Never heard the D18, but I really love the Gungnir and despite having the funds a few times to go a little higher-end, I never pull the trigger as the Gungnir is really very good and I feel I would have to spend at least double to get any noticeable gain so for now still happy to stay with it.