Thank you both! You are right, I found the amp was dead hot after 30-minutes' use, the heat can not escape from my rack, it is just a cheap ikea shelf. I need to re-range my rack space.... But besides the heat, paired with M1 and HD800s, to my ears, it is DAMN close to LIVE! You know...

Just got my GS-X mk2 today, I am surprised that it sounds sweet out of the box, my primitive impressions are: the imaging is top notch, well defined bass with a lot of energy, mid-range purity is great, and beauuuuuuuutiful highs, which is very natural, revealing and airy. This is an overall...

Hey guys, tears on my face now....   Finally I got my dream set up, MacbookPro -> Bricasti M1 -> LAu -> HD800s.   I am so glad that I pulled my trigger on LAu, even without any sort of burning in, it sounds amazing to me directly out of the box. I have not ever heard this kind of energetic...

Quote: I did not compare re600 favorably to 13s, I just said I heard more extended treble on re600 at that time.   Sure enough now, JH13s opened up a lot since then, very satisfy with the sound even before I changed the stock cable. They are absolutely the end-game IEMs I am looking for. 

the burn-in is HUGE on my JH13s. Almost 150 hours now, it sounds MUCH better than out of box. The sound stage was like 20 time smaller than hd800 in the beginning, mid was dry, and treble could not sparkle. Now it sounds like a completely different IEMs. oh man, can't believe this....

I think the grainy you guys talking about is actually resolution? They reveal more details in each notes especially balanced.

yeah, balanced 901 is impressive

add:   if I did not have re400s and did not hear re600s under the 901 balanced mode, my money would already belonged to HiFiMAN..... still surprised by how much improvement of re600s running in balanced 901.....   And if you are buying the re600s, just ignore the stock tips and get some...

Just back from the NYC event, finally heard the re600. I briefly compared them with my re400 and JH13 (well, I know, this was not fair...) anyway..... my impressions are by no mean comprehensive due to the event situation and short listening time, but I am doing my best.   re600 sounds...

I just called J&R, they do not demo in-ears... sigh...

Quote: WOW, thank you so much for your inputs! I do care about cleanliness of the sound, seems like w4r might be the right way to go. so can I say w4r sounds more balanced in your opinion? how will you rate the bass of 535 and w4r in terms of depth and tightness?

Greetings to everyone.   I am thinking of buying a set of IEMs and narrowed down to w4r and se535, but still can not decide which one to go.    Since I am living in NYC, I would love to find a local store where I can demo these 2 IEMs and pick one. I tried B&H on 34th but it seems the do...

what is the pre-order price for 901?

Quote:     you may like this

cable and tips are the weak points of RE400   hope RE-600 has somewhat improved or replaceable cable + proper tips since it costs 4 times as much as the amazing RE400