Well, if you look deeply you would find things like that the 3xp outperforms the BHA1 in some cases, for example planars, specially HE6 and some hifimans, however, I could see that a1000z-(which according to me and a guy I know it is "meh" on the 3xp) could easily sound better on the BHA1, also some dynamics like the HD800 seem to synergize well on the BHA-1.
I truly believe that with your elites, the BHA-1 was better than the 3XP, but that is the thing, that happened with
that headphone, in fact, I think I remember you in the 3xp thread, you said the BHA1 was noticeably more detailed with your elites if i'm not wrong.
I personally think the 3XP is a synergy dependent amp, It is not always better than the cheaper ones, but when it does, it is pretty nice, it's very headphone and maybe dac dependant too.
If you look at this thread, you will not find only one person that says the 3XP was more detailed than the MJ3, I checked and I found 2, lol.
One of the reasons may be synergy... the other reason is something I have not revealed and I don't know if I should... lol.
I believe the MJ3 could be stellar for the price but I don't think it will always outperform every single -2000usd amp in every single headphone and situation, no matter if a trusted reviewer said it.
Currawong, Wavetheory and passion for sound are all good reviewers from my perspective, but I really learned the hard way how almost opposite synergies exists and a situation could exist in where some amp that you may think it is comparable to a 2000usd amp with some headphone, may be worse than for example a much cheaper amp with other headphone
, synergies hit hard sometimes.