Dear friends,   I need a bit of advice. I have HM901 with balanced amp. card paired with JH13Pro iems. Recently I tried to connect the HM901 to my old Onkyo Integra amplifier via the headphone output and listened to the music from my old Jamo Concert 11 loudspeakers. Although I do think that...

That's the reason I never slip the 901 in my trouser pockets without suspensor.

Right approach. BTW, when I put the HM901 into pocket it gets quickly hot (covered ventilation on both sides ?).

HM 901 is my choice No 1 due to the sound, too. But without charger there is no sound. 12V charger is a must for every digital device which cannot be charged over USB. Mr. Fang, my audio genius, do you hear me??? :(

After a few days of listening I just want to confirm my previous feeling that the last FW plays dff (converted ISOs) files much, much  better. Thank you, Hifiman. What about a 12V car charger?

I listen mostly to ISOs rips conv.to dff and I feel the 1.085 final V3 plays them better. I also hear a difference between gain modes. I have felt the low gain too low and the high to high (with balanced amp., trrs Jh13 with silver moon cable). Now the low gain - seems to me - went little bit...

Yeah I looked at H-D, ebay and anywhere. I asked because I saw somewhere in this thread an experience with the dock. Maybe I should start to learn chinese...

Where you guys bought the dock? I try to find an info via Google and have no success. Could someone post me a link? Thank you in advance!

I think the 24/88 or 24/96 properly converted flac files are the most optimal for listening with HM901. As for the dff noise: I tried about 30 isos, some are more noisy, some less ...

@CosmicHolyGhost   Yes. Example bellow (info printed from ISO with -P parameter). Plays flawlessly. Converted  with sacd_extract  OSX version on Mavericks, syntax: --2ch-tracks --output-dsdiff --convert-dst --input"/path/...../any.iso"   #################################################...

--2ch-tracks --output-dsdiff --convert-dst --input"/path/...../any.iso" first parameter is said to be default but better be sure :)   There is a similar utility dsf2flac for further dff to flac conversion.   there is also a java gui for both conversion utilities.   I use osx Maverics's...

Yes, my wheel is much looser with the replaced unit. And I came to the same conclusion :).   Today I got all the dff files playing, I just added a -c parameter to the sacd_extract.   If there was a way how to recharge it in the car without an 12->110V inverter it would be perfect. Well, one...

I don't know why but the replaced HM901 doesn't play all dff files (extracted from ISO file with sacd_extract). From certain ISOs it is OK, from certain ISOs not. I extract with  --2ch-tracks --output-dsdiff parameters.   And the second strange thing is the main wheel which seems to be...

My unit has the same problem as the bartsimpson6994's one. It shuts not down properly.   @pekingduck I did the update 1.084 from the file listed on the Hifiman website:   "Here the new firmware V1.084 is updated. To download the firmware, please click...

@jamato8 You think they delivered it with a dead battery? Well, I will try my second one tomorrow (I bought a replacement battery together with the charging frame). Thanks for the tip. ~bs