New Posts  All Forums:Forum Nav:

HM-901 - Page 75

post #1111 of 3194
Quote:
Originally Posted by kkcc View Post




Em... Don't ever had much heat issue with my Note 2. Probably not high-end enough!

The 901 is hot enough just on standard amp board with 45mins of play time (not charging) that I don't feel comfortable with it in my pants, and I haven't really felt why the AK120 is facing an "uphill battle" based on what I'm hearing now. ow. Of course we all hear differently. Care to share your impressions?


so wat's ur general comparison btw ak120 and hm901 kkcc?

post #1112 of 3194
Quote:
Originally Posted by superjohny View Post


so wat's ur general comparison btw ak120 and hm901 kkcc?

Need to spend more time with the 901 as I just received it and have an hour or so with it on standard amp board. But generally from earlier extended demo (also with standard amp board) I felt it was good enough and different enough to the AK120 for me to get and most likely keeping both. Will post more later'
post #1113 of 3194
Quote:
Originally Posted by kkcc View Post



Em... Don't ever had much heat issue with my Note 2. Probably not high-end enough!

The 901 is hot enough just on standard amp board with 45mins of play time (not charging) that I don't feel comfortable with it in my pants, and I haven't really felt why the AK120 is facing an "uphill battle" based on what I'm hearing now. ow. Of course we all hear differently. Care to share your impressions?
I know you really love your new Dap, but putting it in your pants is going too fast...this is just the first night smily_headphones1.gif
post #1114 of 3194
Quote:
Originally Posted by Mimouille View Post


I know you really love your new Dap, but putting it in your pants is going too fast...this is just the first night smily_headphones1.gif

 

haha Mimouille!  well afterall I've waited for almost a year....!  wink.gif

 

Spent the night with it and happy to report that the current firmware 1.074 (Stable version) is, em, stable.  Only issues thus far are not playback related: 1) the database scanning - it don't like VA albums and for some reason keep putting them in random one or two tracks albums. 2) FLAC embedded album art not (yet?) supported. Need a folder.jpg  3) it really get even warmer with the balanced amp board that you want to place it on top of the bedside cabinet instead of say the mattress else it gets really really hot  

post #1115 of 3194
That's quite annoying - various artists albums sorted by every single artist instead of as one album. This also happens on my WP8 phone, Nokia Lumia 920, unfortunately. Hopefully they get this fixed in the next firmware update.
The good thing with this is of course that all albums titled Greatest Hits, The Essential Collection etc. by different artists will be sorted correctly. However, I prefer calling these albums f.i. Greatest Hits (Artist Name). Then they are sorted as different albums.
post #1116 of 3194
Quote:
Originally Posted by LarsHP View Post

That's quite annoying - various artists albums sorted by every single artist instead of as one album. This also happens on my WP8 phone, Nokia Lumia 920, unfortunately. Hopefully they get this fixed in the next firmware update.
The good thing with this is of course that all albums titled Greatest Hits, The Essential Collection etc. by different artists will be sorted correctly. However, I prefer calling these albums f.i. Greatest Hits (Artist Name). Then they are sorted as different albums.

 

Was the 801 doing this as well?  It surely is annoying and I'm sticking to folder browsing for now.  FWIW, the SD card is the same one used for the AK120 which pick up the tags/albums perfectly.

 

Another piece of more encouraging finding is that the unit I received seems generally better built than the unit I demo'ed from the early production runs.  The edge of the casing seems more smoothed and snug tightly in a way that inspire much better confidence.  I can almost say it feels built like a tank.  All push buttons and toggle buttons sits solidly and aligned properly in their sockets.  It does seems Fang has really been addressing built/QC issues.  Either that, or I'm lucky to get a good one.  ksc75smile.gif

post #1117 of 3194
No, the 801 sorts various artists albums correctly. However, if you have two albums from two different artists and select the album title by reading tags, the two albums are mixed as one album. This I have fixed as described in the previous post.
post #1118 of 3194
Quote:
Originally Posted by kkcc View Post

 

haha Mimouille!  well afterall I've waited for almost a year....!  wink.gif

 

Spent the night with it and happy to report that the current firmware 1.074 (Stable version) is, em, stable.  Only issues thus far are not playback related: 1) the database scanning - it don't like VA albums and for some reason keep putting them in random one or two tracks albums. 2) FLAC embedded album art not (yet?) supported. Need a folder.jpg  3) it really get even warmer with the balanced amp board that you want to place it on top of the bedside cabinet instead of say the mattress else it gets really really hot  

 

 

I think folder SD card / folder selection for music is the best way of using the 901...

 

Same same for me on VA albums

post #1119 of 3194
Quote:
Originally Posted by kkcc View Post




Em... Don't ever had much heat issue with my Note 2. Probably not high-end enough!

The 901 is hot enough just on standard amp board with 45mins of play time (not charging) that I don't feel comfortable with it in my pants, and I haven't really felt why the AK120 is facing an "uphill battle" based on what I'm hearing now. ow. Of course we all hear differently. Care to share your impressions?

 

The Note 2 is a ridiculously enormous phablet, of course it can dissipate heat much easier with more surface area.  It has a huge battery that can run cooler because it has less stressful power drain, and more surface area to dissipate heat.    Just as the HM-901 gets hotter quicker than the larger HM-801.  Seems the heat is primarily from the battery as far as I can tell, as the back panel is the hottest. 

 

Everyone bitched about the HM-801 being too big.  Now the smaller HM-901 has to do more in less space.  Maybe someone can make a large aluminum heat sink case for the HM-901 and make it larger than the HM-801 in the end.

 

I have not heard the AK120, but will have a chance very soon.  (In about a week).  The AK120 is facing an uphill battle because it's using a low powered DAC meant for portable use, and is a very common chipset in use in many products already, and is honestly not on the same level as the ESS Sabre 9018 DAC chipset.  The AK120 is a nice evolutionary upgrade from the AK100, so I'm not expecting it to be night and day difference in sound quality, but rather a refinement and subtle upgrade.

 

The HM-901 is completely different from the HM-801, pretty much from the ground up.  Totally different DAC chips, volume control and amp structure, and the OS / UI is completely different as well.  The only feature the HM-901 shares in common with the HM-801 is using over the top, non-portable designed components in as small a battery powered package as possible.  No one else if accomplishing this feat.

 

I appreciate the slick and compact industrial design of the iRiver AK100 and AK120.  But, in the end, at it's core, it's based on a lower quality DAC that makes compromises for battery life, and compactness.

The HM-801 and HM-901 made no compromises for sound quality, but that came at the expense of battery life, more heat, and larger size.  Don't get me wrong, a lot of people would love to have a high end DAC shoehorned into a box as small as the AK120.  Sure.  But who would want to deal with a DAP that you can only use for 20 minutes, because it would overheat or run out of batteries first?

post #1120 of 3194
Quote:
Originally Posted by Edwood View Post

The Note 2 is a ridiculously enormous phablet, of course it can dissipate heat much easier with more surface area.  It has a huge battery that can run cooler because it has less stressful power drain, and more surface area to dissipate heat.    Just as the HM-901 gets hotter quicker than the larger HM-801.  Seems the heat is primarily from the battery as far as I can tell, as the back panel is the hottest. 

Everyone bitched about the HM-801 being too big.  Now the smaller HM-901 has to do more in less space.  Maybe someone can make a large aluminum heat sink case for the HM-901 and make it larger than the HM-801 in the end.

I have not heard the AK120, but will have a chance very soon.  (In about a week).  The AK120 is facing an uphill battle because it's using a low powered DAC meant for portable use, and is a very common chipset in use in many products already, and is honestly not on the same level as the ESS Sabre 9018 DAC chipset.  The AK120 is a nice evolutionary upgrade from the AK100, so I'm not expecting it to be night and day difference in sound quality, but rather a refinement and subtle upgrade.

The HM-901 is completely different from the HM-801, pretty much from the ground up.  Totally different DAC chips, volume control and amp structure, and the OS / UI is completely different as well.  The only feature the HM-901 shares in common with the HM-801 is using over the top, non-portable designed components in as small a battery powered package as possible.  No one else if accomplishing this feat.

I appreciate the slick and compact industrial design of the iRiver AK100 and AK120.  But, in the end, at it's core, it's based on a lower quality DAC that makes compromises for battery life, and compactness.
The HM-801 and HM-901 made no compromises for sound quality, but that came at the expense of battery life, more heat, and larger size.  Don't get me wrong, a lot of people would love to have a high end DAC shoehorned into a box as small as the AK120.  Sure.  But who would want to deal with a DAP that you can only use for 20 minutes, because it would overheat or run out of batteries first?

LOL...Don't really need to really justify your speculations. Totally agree HM901 dac chips totally uBer pWnEd the AK120 chips!And we all know DAC totally rules everything:P else why I would be getting the 901?!

Cheers
post #1121 of 3194
One idea to improve the heat dissipation in HM-901 is to replace the plastic casing with aluminum black anodized casing.
post #1122 of 3194
Quote:
Originally Posted by cyberalpha11 View Post

One idea to improve the heat dissipation in HM-901 is to replace the plastic casing with aluminum black anodized casing.

 

The heat really isn't that bad.  The unit is warm that cause discomfort in the pants pocket, but not to the point it would be harmful to the internals like an overclocked PC.  

 

I think the material chosen serve it purpose.  It feels high grade and feel very durable - can definitely take more punishment that the AK casing.  It feels nice to hold and is not a fingerprint/dust magnet.  In fact it would feel not as hot as aluminum to touch.  I can appreciate they choose a material over stylish/photogenic ones that compromise practicality. 

post #1123 of 3194
I rather have a AK120 who runs cooler and sound good 80%for longer then the HM901 with 100% sq warm or hot for shorter.
Had the DX100 so been there.
And please don't tell me their sounds are night and day versus AK120 lol.
post #1124 of 3194
Quote:
Originally Posted by musicday View Post

I rather have a AK120 who runs cooler and sound good 80%for longer then the HM901 with 100% sq warm or hot for shorter.
Had the DX100 so been there.
And please don't tell me their sounds are night and day versus AK120 lol.

I don't have the DX100 anymore but the 901 actually runs cooler than the DX100 if memory served me right. I wouldn't have forgone the sound quality of DX100 for stock AK100 had it runs similarly as the HM901.

The 901 with balanced card does sound good. Good enough for me to have it alongside the AK120.

post #1125 of 3194

Speaking of heat, I just tried some 24/176.4 materials for the first time today and my Hm901 was HOT after an hour or so.

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Source Gear