My QA360 has been in my hand over 100 days/ 500 Hrs. Hold Hifiman HM901 and IBASSO DX100 at the same time, QA360 has been the most played(almost the only) played portable source in the past three months. I am a careless user and QA360 endured at least half dozen drop from hand hold position and...

by my guess, DSD is process by DAC, Hi Res FLAC will need some CPU power to de-compress

I haven't got chance to compare to AK, just speculate from what I heard--QA360 should easily win over AK when driving big headphones

Just talked to Clark(founder designer QLS) in ERJI.NET he told me because of CPU limitation Hi Res FLAC is not supported.

Tested my QA360 battery life. Started playing a 32GB SD card with mix of FLAC, WAV, APE files, mx365 pluged in , volume 60. Started playing 6am Battery drained at around 4:30 Battery life=10.5 hrs

QLS  boosts it's  Single Threaded Software Framework , it has it's advantage but also with limitations. I think at the moment there is no hope for a quick fix of firmware. QLS is very good at past product support, you can ask them if they have plan to improve  360 on FLAC support.

I am listening A Book Like This by Angus & Julia Stone with HD650 plug in QA360. Sound pretty nice, volume at 102, HD650 sounds well driven. I can feel the change of BASS department in past three days of burn in . Bass was in decline first day of burn in, but came back now with better depth and...

Flac does not support 24/96, 24/192, no problem with WAV hires files

Yes I think so.In setup menu gap can set as 0, 500,1500, 2000. Guess 0 means gapless

The playing of DSD files is done perfectly. DSD ISO files and DSF DFF files in my card can be played instantly with no drama or any pause/waiting.

To my like, HM901 with balance amp card still is the best sounding DAP among these three. I am not sure was it due to the limitation of AMP section of QLS QA360 or MR Chen's preference, 360's base is not as fast and punchy as HM901's. Over all QA360 is roughly at the same level compare with...

Got my unit on Monday. Run it in for 2 days, don't have any DAC in hand, can't have any say about it's digital out ,sorry.

three bricks: size and wight belong to the same league

I have both DX100 and HM901. To my own ear, hm901 worth the price difference sound wise. DX100 sounds good enough with plenty of detail, but HM901 has better sound stage and more engaging vocal and more energetic instrumental.

I have HM700 and HM601 Slim 4GB. HM700 sounds way above HM601. The sound of 700 is much more balanced and transparent than that of 601. Battery life of 700 is 2X more than 601 and size halved.

DX100> Hifiman re400

Hifiman HM601>Fisher Audio RPM 33 1/3: QLS QA350>FIIO E12>Ultrasone PRO 750:

I bought IE80 from this seller-It was 100% fake.......don't buy from them

Got my delivery today. I just can't believe how small the box and phones are. Sound good and balanced with with a little spike on highs.

The exploding charger was a bit misleading. I read the original post- the owner mistakenly short the output plug while charger was on and damaged the output bit of wire. But the charger was still working all right after the short. 

HM901 and Re600 is on shelf in head-direct now.

Quote: Congratulation on your new toys!! Which city in OZ? I am in Sydney.

D 50-So far just a dummy model appeared in a meeting. From the photo the three keys looks pretty ugly. People bears high hope on it's sound- but no one has any idea yet.

My hm601 4GB slim doesn't seem to have any noise issue. With line-out to amp and speakers still sound descent.