Best Headphone DAC/Pre-Amp?


Hello,

I just purchased a pair of Audioquest Nighthawk Headphones and I will primarily connecting it to my iPad for movies/music. I am looking to go above and beyond for quality of sound and am looking to get suggestions of the best DAC/Pre-Amp that matches up well to the specs of the Nighthawk. Thanks!
brooklyn1207
I am looking for an all in one unit. Hoping to find one that would support the very low impedance of the nighthawks and bring out the best performance.
What is your budget?Are you looking for the crystal clear SS sound or do you want a bit of tube glow?
@freediver 
 "What is your budget?Are you looking for the crystal clear SS sound or do you want a bit of tube glow?"

Thanks for the response! Looking for a crystal clear SS. No budget, looking for portable. Right now, I am looking at the Oppo HA-2.



I'm a HUGE fan of Oppo's DACS,truly world class IMO.At the price point of the HA-2 I don't think you can do better.Great choice.