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Updated: HifiMAN HM-801 Portable Music Player Preorder - Page 18

post #256 of 1465
7/30/09 at 12:29am
Ah, reminds me a little of the cowon GUIs. Love those.
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post #257 of 1465
7/30/09 at 5:17am
Quote:
Originally Posted by Nankai View Post
Real Photos. (Taking photo from LCD is extremely difficult)
Thanks again for your effort. I'm glad the screen visualisation is clorer to present days standard, not old "DOS" times. Not that it matters more that music reproduction.... Just it wouldn't hurt if UI will please our eyes as well. Is there any chance UI or performance will be upgraded though future firmware updates? I believe there is.

Thank again.

Quote:
Originally Posted by KONAKONA View Post
Ah, reminds me a little of the cowon GUIs. Love those.
Exacly. I still use X5L and I was rather happy with that UI. Until I installed Rockbox and got even more information on my screen...
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post #258 of 1465
7/30/09 at 6:41am
Quote:
Originally Posted by Piejesu View Post
I think, the difference between SDHC and SDXC is only file format, so it depends on the firmware/OS, not Hardware itself.
SDHC is FAT32, but SDXC is exFAT.
If the firmware of HM-801 is programable, SDXC will be able to be supported, but I don't know whether it will be easy or not.
Direct from the FAQ of sdcard.org

Is SDXC compatible with existing SD hosts?

Existing SD and SDHC host devices will not be compatible with new SDXC cards, but existing SD and SDHC cards will still continue to be offered by card manufacturers for the foreseeable future. Existing SD and SDHC cards will work in SDXC host devices.

So while it won't use SDXC, least SDHC cards are cheap Still debating if I should order one or not
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post #259 of 1465
7/30/09 at 6:56am
Quote:
Originally Posted by Ricey20 View Post
Direct from the FAQ of sdcard.org

Is SDXC compatible with existing SD hosts?

Existing SD and SDHC host devices will not be compatible with new SDXC cards, but existing SD and SDHC cards will still continue to be offered by card manufacturers for the foreseeable future. Existing SD and SDHC cards will work in SDXC host devices.

So while it won't use SDXC, least SDHC cards are cheap Still debating if I should order one or not
Note the word "existing". Hopefully they're just pointing out that already existing devices won't support it, but it's possible to upgrade firmware to support it.

If not, no big deal. SDHC is much cheaper anyways.
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post #260 of 1465
7/30/09 at 10:18am
Yay! Colour screen!

I was expecting something like a 2G iPod
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post #261 of 1465
7/30/09 at 6:10pm
Yeah, the prototypes at CanJam had color LCD's.

Not really that important to me, but it's a nice bonus. Not like we'll be playing video with them.
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post #262 of 1465
7/30/09 at 6:20pm
Hehe, it really isn't to me either. But I like candy
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post #263 of 1465
7/30/09 at 10:10pm
Thread Starter 

Headphone Amplifier Module Spec

Update 07/30/2009 Headphone Amplifier Module Spec

Opamp: OPA275
Input Voltage: +/-7.5v
quiescent current 6-7ma
Input Impedance: 20k
closed loop voltage gain: 6dB
Distortion: 0.002%
S/N: 102dB
Frequency: 10Hz - 60KHz (-1dB)
Maximium Undistorted Power Output (RMS)
32 Ohm 1.5v 70mw
150 Ohm 3.4v 77mw
320 Ohm 3.8v 45mw
Maximium Current
32 Ohm +24ma -30ma
150 Ohm +15ma -16ma
320 Ohm +10ma -11ma
head-direct: The Web Store of HiFiMAN
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post #264 of 1465
7/30/09 at 11:48pm
Why does it changed from OPA627, or what is advantage?
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post #265 of 1465
7/30/09 at 11:53pm
Thread Starter 
Quote:
Originally Posted by Piejesu View Post
Why does it changed from OPA627, or what is advantage?
OPA627 opamps use at filter part, not amp part. We did not change anything. OPA275 is in the Ampilifer Module part, not filter part.
head-direct: The Web Store of HiFiMAN
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post #266 of 1465
7/31/09 at 4:23am
Thank you for your explanation in detail.
As you have disclose the specification of amp section, I expect that the "Day1" is coming very soon!
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post #267 of 1465
8/1/09 at 1:32pm
ordered, looks sweet fang. see how it improves upon my amp3, cant wait!
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post #268 of 1465
8/3/09 at 1:31am
ordered~ may I ask, what's in the box with the hm801? thanx
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post #269 of 1465
8/3/09 at 3:53am
Yes, I'm interested in this as well. Will any size of an SD-card be included?
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post #270 of 1465
8/3/09 at 4:38am
Hi Fang,

Any hint when will the actual shipment be?

Regards
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