Could you want to sell it? I want to do some mods?

I use vioelctric V281 to drive he1k v2 and he6se v2. Yes, overall sound signature are fun, bright but the He6se's high is more sparkle, grainier and He 1k is smoother. Both need warm sounding amp.

I have a chance to grab an HE1k v2 fo $900. So maybe I pass Nan7 and go ahead for He1k. The He1k V2 is a bit boring compared to well-driven He6se. The He1k is smoother and more open not sparkle as much as He6se. But in term of resolution, the distance of them is very tiny.

At the price $399 for he6se v2 on adorama, its value is hard to be beaten by any headphone.

A normal single-ended 300b amp delivers 8w at 4/8ohm. So it equals to swing 8Vrms or 1.28Wrms at 50ohm. Dr. Fang Bian recommended amp for HE6 at least 2Wrms at 50ohm. So your amp must swing at least 10Vrms or more. I use 12W el84 push-pull amp to drive HE6SE V2, volume up at 12h-2h. It sound...

I prefer Hifiman's roundshape to eggshape. The eggshapes seems more airy and open but the roundshapes seems more accurate in image, soundstage and more balanced.

If you have a right amp like speaker amp or headphone amp with tons of power, it's a good choice. He6(se) is a "love it" or "hate it" can. I know many people prefer he6 to he1000 (like me).

I see there's very similar driver design between susvara and nan-7. Can anyone compare the sounds from two cans?

My friend has used M2C for 6 month. And now, the cable is hard and easy to broken. I think TM7's cable is much better than M2C's. So I won't buy the ANV3 if it has M2C cable although it may be the best bang for the buck

Quote: You can buy an aluminum (or wooden ) air charmber. Them install your X drivers onto the 325is

I think the Symphones X Turbulent Driver is Magnum V5. You can see symbols "5.0" in this picture:       Can't wait anymore 

I had a pair of M2C, but I sold it away when I knew that TM7 was coming. Maybe it's a wrong decision. But I believe TM7 will be outstanding because its brother - TM5 is very famous with earbuds-lovers.:X Waiting & waiting :D

Quote: Me too,...

Could you compare the new Tm7 to the Tm5? I haven't listen to Tm5 yet, but it's more expensive than Tm7 and very rare.

Yuin G1a. It's the best clip-on I've ever heard