Will do comparison for these 3... Got a loaner unit from my friend.
xDuoo TA-01, Aune T1, and Yulong U100
Above are considered budget amp. And comparison just for fun.
The Jack Daniels upgrade will give you the biggest SQ improvement
For Xduoo T-01 vs Aune T1, I think T-01 win except for the lack of energy in fast song. T-01 more to relax songs. T1 more energetic but might become too thin. And T-01 resolve the sharp cymbal sound but have to sacrifice the music energy in metal, rock, and symphonic metal. Too bad no RCA cable to combine these both... Yulong U100, ouch... Sound worst among those 3. Haha...
Are you asking me? If so its not placebo, the changes are noticeable going from one to the other and I'm actually using the speaker amp to drive them now rather than the headphone amp previously. Different amps have a different sound. I had noticeable differences (even more so) as well going from headphone amp to speaker amp with the HE500s.
Just received my HD600s last night; I upgraded from the HD-555s, which I have had for seven years.
I spent all of last night doing side-by-side tests between the 600 and 555s, and it was incredible how "unclear" the 555s sounded next to the 600s, even when they seemed to sound great to me for so long. Right now I am running them out of my X-Fi Xtreme Music sound card on my PC; I plan to get the Schiit entry stack (Vali/Modi) in the near future.
One thing that really stood out to me was the bass frequency response. During my research, I have heard a lot of people talk about how the 600s have a very flat bass frequency response, but I feel as though they do quite well, even on songs with heavy electronic bass. Perhaps the HD-555s are also considered to have a weak bass response, and since that is what I am used to, the response on the 600s feels comfortable.
Either way, my only complaint at this time is that my 600s are not perfectly molded to the shape of my head as my 555s are :)
stick your head with the hd600 into the oven n set at HIGH for 15mins....should work.
i had that "unclear" feeling when i A/B hd600 with stock vs HD650cable....
then HD650cable vs aftermkt cable..then vs cardas...it goes on n on. :P
Enjoy your new toy bro..great BUY !!
Has anyone here had experience with HD600 + Bifrost and Modi? I assume Modi and ODAC have little if any difference and I'm wondering if the $420 difference is justified or not. Not on a heavy budget but I don't want to spend as much as possible. Plan to go with HD600 + Bottlehead Crack + DAC of choice.
Suggestions? I'm open to more than the two/three I've listed.
Also, there's no accounting for listener-preference. I remember when a fellow Head-fier demoed my HD600's at a meet he said that they were "very-bassy" and "good for hip-hop".