[shaya]

Ok, after I got one clear answer from SgtMattBaker here http://www.head-fi.org/t/691115/hd600-driven-by-denon-pma-920-class-a-stereo-amp-what-am-i-to-expect, I had to think it all over:
 
Which of the following should give me the  best results with my HD600:
- SHIIT Magni + Modi
- JDS Labs O2 + ODAC
- Xonar Essence STX or Sound Blaster ZxR  (with Magni, O2 or integrated headphone amp)
 
Thank you in advance for any help with this.

 

[PurpleAngel]

  Ok, after I got one clear answer from SgtMattBaker here http://www.head-fi.org/t/691115/hd600-driven-by-denon-pma-920-class-a-stereo-amp-what-am-i-to-expect, I had to think it all over:
 
Which of the following should give me the  best results with my HD600:
- SHIIT Magni + Modi
- JDS Labs O2 + ODAC
- Xonar Essence STX or Sound Blaster ZxR  (with Magni, O2 or integrated headphone amp)

If your will to spend $300 ($255+shipping)
Audio-GD NFB-15.32 DAC/Amp, comes with USB, optical & coaxial inputs.
Dual WM8741 DAC chips and an amplifier that easily drives my 600-Ohm headphones
http://www.audio-gd.com/Pro/Headphoneamp/NFB1532/NFB15.32EN.htm