Man, I don't know. It's possible, but hard to imagine. These cans aren't hand-made so it is odd that they would sound so different.
As I've mentioned previously, my EL-8 responded better when fed from my Pono or my Geek Out 1000. The soundstage was narrower on the Pono and the SQ was characteristically smooth. The soundstage, attack and bite were all improved by the GO 1000, understandably, considering it has a much better DAC and ballsier amp. My Bifrost Uber and Lyr 2 exhibited a much larger soundstage, but the added air and power seemed to never translate to the bass response of the EL-8. The mids and treble certainly shined, although the treble occasionally had some grain; not a lot, but audible every now and then.
Bottom line, probably like some folks, I was hoping to get the famous Audeze bass at a fraction of the flagship prices, but it was not to be. I believe Audeze designed this HP to compete with like-priced cans, and to sound good to great with portable devices. I have no doubt it can sound good with other systems, but I couldn't justify keeping the EL-8 given how it sounded on mine. To me, it came down to a matter of sonic priorities and wise investment of limited money and time.
Thanks for the reply,
Yea, with my Lyr2 and bifrost the EL8 didn't really get better than from S5 or Fiio X3. The sound stage does get better with the Teac UD-301 and project ember but like you said the added "air and power" doesn't translate to better performance from the EL8.