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Hifiman 801 Appreciation thread - Page 32

post #466 of 534
I had V0.19 but went back to 0.23 as to be honest though initially I thought 19 better sounding doing some back to backs I think it was more me thinking it rather than it being it! Plus with the latest version I have had no problems with a wide variety of cards.

Mike, yours being a factory refurb will probably come with the latest. I am really looking forward to your thoughts on it!
post #467 of 534
I use .19. Haven't had any problems.
post #468 of 534

Hi,

 

I received a factory-refurbished HM-801 two days ago, already loaded with the latest v.0.23 firmware, and I am exceedingly pleased with the sound quality of both the headphone out and the line out into an external amp. Without question, this is the best source I, personally, have ever heard.  But there are issues which are encouraging me to return the HM-801 under their 30-day return policy.   I sent an e-mail to customerservice@head-direct.com, but it has only been about 30 hours thus far, with no response.  Please feel free to chime in if you have anything to contribute that might be of help.  Thank you!

 

 

Problems:

 

1) My HM-801 can play 96/24 FLAC, but it can't play 96/24 WAV.  Is this to be expected?  This happens even with 96/24 WAV files copied to the internal memory, and thus, has nothing to do with SD card incompatiblity.

 

2) I hear a loud pop and sometimes a double-pop between every track.  I know it's not supposed to do gap-less playback, but is it supposed to pop loudly between every track?  This happens whether I am using the headphone out or the line out, and whether I'm using the AC-to-DC power adapter or the internal battery pack.  On occasion, it does not pop between tracks, but I've not identified any pattern - it's random, but mostly it pops.

 

3) On Windows 7 and Windows XP machines, when I connect the HM-801 to a the machine via the USB Data Exchange port, I am able to see the on-board memory, but I am not able to see any SD card previously loaded into the HM-801 card reader.  The only way I can add or remove files from an SD card is to remove it from the HM-801 and mount it in the PC's card reader.   Is this to be expected - working as designed?

 

------

 

Questions (not problems):

 

My primary purpose is to use the HM-801 as a card-reader to Line Out, portably, without reliance on AC power and I'd rather not be limited to the capacity of the HM-801's internal battery pack. I have almost no interest in using the headphone out.  

 

1) Is there any way to supply power to the HM-801 for card-reader to Line Out use, with the battery pack removed and without using the supplied PSU, which has a proprietary double-barreled connector?  (Is it possible to power the HM-801 on 5V USB power from a laptop USB port (or external 5V power bank) to the Data Exchange port with the battery pack removed?  Can I use a single power connector (instead of two) from an external 9V power bank to one of the two 9V power ports?  Which one?  Or must I supply power to both of them when using only the card reader to line out, with no need for the headphone amp?)

 

2) I've noticed that the headphone amp board gets hot (Class A?) even when I 'm using Line Out, with nothing connected to the headphone out jack.  Is it possible to operate the HM-801 as a card reader to Line Out, with the amplifier board removed entirely (to save battery power and reduce heat output?)

 

3) Is there a way to delete files using the HM-801 UI?

 

4) Is there a way to copy files from SD to memory or from memory to SD using the HM-801 UI?

 

Thanks,

 

Mike


Edited by zilch0md - 9/6/13 at 12:25pm
post #469 of 534

My answers are in RED :wink_face:

 

Quote:

Originally Posted by zilch0md View Post
 

Hi,

 

I received a factory-refurbished HM-801 two days ago, already loaded with the latest v.0.23 firmware, and I am exceedingly pleased with the sound quality of both the headphone out and the line out into an external amp. Without question, this is the best source I, personally, have ever heard.  But there are issues which are encouraging me to return the HM-801 under their 30-day return policy.   I sent an e-mail to customerservice@head-direct.com, but it has only been about 30 hours thus far, with no response.  Please feel free to chime in if you have anything to contribute that might be of help.  Thank you!

 

 

Problems:

 

1) My HM-801 can play 96/24 FLAC, but it can't play 96/24 WAV.  Is this to be expected?  This happens even with 96/24 WAV files copied to the internal memory, and thus, has nothing to do with SD card incompatiblity.

 

YES - it doesn't play 96/24 wav, only FLAC 96/24

 

2) I hear a loud pop and sometimes a double-pop between every track.  I know it's not supposed to do gap-less playback, but is it supposed to pop loudly between every track?  This happens whether I am using the headphone out or the line out, and whether I'm using the AC-to-DC power adapter or the internal battery pack.  On occasion, it does not pop between tracks, but I've not identified any pattern - it's random, but mostly it pops.

 

Pops or clicks between tracks is (unfortunately) normal, however not very loud, but it does make sounds quite often between tracks.

 

3) On Windows 7 and Windows XP machines, when I connect the HM-801 to a the machine via the USB Data Exchange port, I am able to see the on-board memory, but I am not able to see any SD card previously loaded into the HM-801 card reader.  The only way I can add or remove files from an SD card is to remove it from the HM-801 and mount it in the PC's card reader.   Is this to be expected - working as designed?

 

If the card is a SDHC card formatted correctly to FAT32, it is seen, but NOT if you put a SDXC in the player, because it doesn't support exFAT - and it wont help formatting a SDXC card to FAT32 either.

 

------

 

Questions (not problems):

 

My primary purpose is to use the HM-801 as a card-reader to Line Out, portably, without reliance on AC power and I'd rather not be limited to the capacity of the HM-801's internal battery pack. I have almost no interest in using the headphone out.  

 

1) Is there any way to supply power to the HM-801 for card-reader to Line Out use, with the battery pack removed and without using the supplied PSU, which has a proprietary double-barreled connector?

Don't know. Ask customer service before trying.

 (Is it possible to power the HM-801 on 5V USB power from a laptop USB port (or external 5V power bank) to the Data Exchange port with the battery pack removed?  Can I use a single power connector (instead of two) from an external 9V power bank to one of the two 9V power ports?  Which one?  Or must I supply power to both of them when using only the card reader to line out, with no need for the headphone amp?)

It needs +9 and -9 Volts for charging, so USB charging is a no-go.

 

2) I've noticed that the headphone amp board gets hot (Class A?) even when I 'm using Line Out, with nothing connected to the headphone out jack.  Is it possible to operate the HM-801 as a card reader to Line Out, with the amplifier board removed entirely (to save battery power and reduce heat output?)

 

Don't know. Ask customer service before trying.

 

3) Is there a way to delete files using the HM-801 UI?

 

NO

 

4) Is there a way to copy files from SD to memory or from memory to SD using the HM-801 UI?

 

NO

 

Thanks,

 

Mike

post #470 of 534

Lars!   Thank you x100!

I've been frustrated, not hearing anything from HiFiMan, so I was exceedingly pleased to get any reply to my post, this quickly, and your answers are so solid!   I really appreciate your effort.  :beerchug:

 

I will certainly check with customer service / technical support before experimenting, where noted, above.

 

By the way, it's at least consoling to know that everyone's HM-801 pops between tracks - oh well - and that SDXC cards, once formatted to FAT32, still can't be displayed via Windows Explorer, as described above.  

 

In other words, all of my problems are actually "working-as-designed limitations."

 

Battery life is horrible, by the way.  Again, oh well... the sound is sublime!

 

Thanks again!

 

Mike

post #471 of 534
If you do find out any information regarding an alternate way to power the HM-801, please do post it here.

Thanks!
post #472 of 534
 

Battery life is horrible, by the way.  Again, oh well... the sound is sublime!

x100

 

At least it's on par with most other hi-end daps battery wise.

post #473 of 534
Quote:
Originally Posted by R Scott Ireland View Post

If you do find out any information regarding an alternate way to power the HM-801, please do post it here.

Thanks!
 

 

I certainly will!  

 

I'm concerned about the battery going bad and the possibility of replacements becoming unobtainable.  It's one thing to throw away a Shuffle when its battery refuses to take a charge - quite another to toss an HM-801 in the trash.


Edited by zilch0md - 9/6/13 at 5:32pm
post #474 of 534
Quote:
Originally Posted by zilch0md View Post

I certainly will!  

I'm concerned about the battery going bad and the possibility of replacements becoming unobtainable.  It's one thing to throw away a Shuffle when its battery refuses to take a charge - quite another to toss an HM-801 in the trash.

I have a spare battery for that reason, and I think I'll order another one as well.
post #475 of 534

I contemplated on ordering a spare battery or two for the same reason.  Price isn't too bad at $80 a pop.  Still, I even thought about getting the extra year warranty (mine still has about 8 months warranty left).  

 

Anyhow, I'm curious if anybody investigated on build of the battery.  I wouldn't be surprised if it uses dual smartphone batteries.

post #476 of 534

Regarding the pop between tracks, I don't hear it, but I'm running the latest firmware.

post #477 of 534
Me too (v.0.23), but I hear pops. I know another 801 owner who hears pops, too. I wonder what the stats are for this seemingly "normal" behavior.

Mike
post #478 of 534

I stand corrected.  I hear them.  I lowered the volume to a level that I normally don't listen at and sure enough - pop!  Often times I will skip tracks before the previous one finishes and that's when I don't hear the pops, but when the next track is played after the previous is over, sure enough - pop!  At least the pop isn't as loud like when you first turn on the HM-801.  That's a pop with authority.

post #479 of 534

I have to admit, i have never heard the "pops".  Running .19 as stated above.

post #480 of 534
And I have not heard pops or any other noise other than when I have inserted or removed and reinserted SD cards with the player on. Then I get a wide range of noises, pops, weird electronic noises and such.
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