Had the same problem.  Download works fine from their Japanese site:  http://www.iriver.jp/download.php?id=1197

After you pay for the Exclusive Offer upgrade in the HiFiMAN shopping cart, you will receive a payment received confirmation screen.  It's this screen you should print to include in your box when returning your HM-901.   Alternatively, you can log into your My Account on Head-direct and find the...

  I checked a couple times daily until the offer had the 901s back in stock.  They don't appear to put many up at a time, so you do need to keep watching.   While my 901 was returned within the U.S., the replacement 901s was fulfilled from China.      Haven't spent much time with the 901s...

Stock tubes, streaming DSD on Linux with HQPlayer, SR-009, and Vivaldi DAC and it's awesome.

Oops, I have both the Srs-005s (Sr-003 mk2, std plug) and the Srm-002 + S-002 (portable plug, uses same Sr-003 mk2 driver).  S-002 for the gym. I use both w. out the headband.

  I rotate using SR-002 and TrippleFi 10's in the gym with my AK120.  I wear the 002's without the headband and they are comfortable for my 60-90 minute workout.  I'm not a big fan of the gym and I suspect any potential discomfort from the 002's would be masked by the more acute pain I feel...

Thanks.  It's hard to see in the picture, but it's a Gen IV GTS Blue Viper.

We're going to be neighbors!   

Yeah baby, we now can have 512GB SD cards in our HM-901's!   http://www.anandtech.com/show/8522/sandisk-launches-extreme-pro-sd-cards-up-to-512gb

I have an AK120 with the dual SD card slot and the cards also don't latch/lock in place.  I was always curious about this, but it hasn't been a problem as the cards' tension against the sliding cover keeps it closed. 

Can someone shed some light on the ALPS RK50 used in the BHSE?     Does the RK50 use a ladder of SMD resisters vs. a conventional pot that drags contacts across a wire/membrane surface?  If the RK50 uses a resister ladder, is the adjustment perceived to be fully linear?  I can't tell from the...

Been enjoying my Electra w. 009's and a Debussy DAC and I can't wait to receive my Silver BHSE in this upcoming batch.  It's been a loooong wait, but I know it's going to be worth it!  Trading in my Debussy and will be pairing the BHSE w. a Vivaldi DAC.  I don't like treble too relaxed and...

I recently had my two batteries replaced under warranty as they were expanding when charging/discharging.  HIFIMAN's support is top notch! 

This was a generalization based on the Cirrus chip's DNA, but like others have previously noted, it's all in the implementation of the DAC. The new AK is not fatiguing, but people are indicating they are more revealing.  

I have been on the fence upgrading my AK120 to the AK240. While Cirrus Logic DACs have sometimes been considered fatiguing in contrast to the Wolfson's musical/comfortable to listen to for long periods, my personal preference is more in the Cirrus Logic camp (I also love the SR009 over the SR007...