Originally Posted by LunarBear
So, how are you liking the upgrade? Are you feeling that it was absolutely worth it? A big step up compared to the HE-400? I've read your (excellent) review and it looks like it is but you didn't really compared it to the HE-400 so it's hard to know.
I actually sold off my HE-400 a few months ago and have been using my woodied Grado SR60i since then, so I can't say the memory of my HE-400 is as fresh as I would like it to be. I was very happy with the bass on my HE-400, but the slightly recessed vocals nagged me a little. I also realized after auditioning other headphones that the HE-400 sounded a little unnatural with its emphasized treble and bass. I am finding nothing lacking on my HE-560 right now, and that is perhaps the most noticeable improvement for me over the HE-400. This is actually a big deal for me, since I have always found something wanting in all the other headphones I have auditioned over the past few months (bass quantity for the Alpha Dogs, excitement for the HD800, treble sparkle and bass control for the LCD-2, soundstage for the Mad Dogs). I probably just found precisely the sound signature I was looking for with these, so take my satisfaction here with a pinch of salt.
If I was to be really nitpicky, the two things I wish were ever slightly better in the HE-560 are the mids (I would appreciate a slightly more forward, lush midrange) and the soundstage size (I wish it was even bigger). However, I imagine I might find improvements in both these departments after upgrading to a different, better amp. I would not sacrifice the tonal balance and the other good qualities of the HE-560 for either of these improvements. I am already very satisfied with running the HE-560 right out of my Aune T1, so I guess it can only get better from here.
I hope this helps! Also, it might not hurt to just order the HE-560 from HiFiMAN, try them out, and return them within the first 30 days under Head-Direct's refund policy if they aren't right for you. I'm not sure if Audeze itself or its dealers have a similar policy, but I don't think two way shipping is too much to pay to figure out if a headphone of this price is a good fit for you :)