Could you tell me that the cable included in HE-6 phones is one of the Toxic cables?
What is the quality of it.
I intend to use it for my He-400.
No, it's just a Copper OCC cable with 4 pin XLR male + female Yongsheng, and a furutech Fp-704 1/4" TRS . Most Copper OCC cable looks like that. Toxic's copper cable use Neutrik 4pin/Viablue/oyaide 1/4 TRS (depends on what you ask for).
Quality is good I guess, a bit long and the XLR plug is a bit heavy.
It seems Fang still frequents Head-fi quite regularly on his personal account (http://www.head-fi.org/u/43701/nankai), last online 4 days ago. So there is a good chance he lurks a lot of the Hifiman product related threads.
Do you listen to a lot of female vocals? How are their voices on the tubes, if you do? Tubes vs. solid state is just an opinion. Others have used the Aune, too. RMac comes to mind. He tried the Schiit Magni / Modi combination, but felt that signature was a bit bright at the top end, and the Aune solved the issue for him. In the end, all that matters is that you enjoy what you hear.
Well, I listen to plenty of female vocals, they sound warm and vibrant, yet still crisp, something I do enjoy. Before that I used Xonar Essence STX, which combined with HE-400 ended up with a really bright and cold sound, somewhat fatiguing and unpleasant.
It should be. IME, HiFiMan has been great about repairs (I've owned quite a few HiFiMan phones and only my RE262 ever needed to be replaced) on second hand units. They usually just require you to show a proof of purchase/receipt.. so if you're buying from someone else, have them forward you their proof of purchase/receipt (from an authorized reseller).
Sounds good. Will be looking forward to doing the mod sometime today.