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HIFIMAN EXPRESS Brand and HM-101 Portable USB DAC

post #1 of 8
Thread Starter 

hifiman-express-logo (1).jpg

 

Why don't you build some consumer grade products with Hi-Fi elements?  One of my friend asked me last year. He was right, we do have the ability to build consumer grade products, such as headphones, sound card, players, as cheap as those sold in walmart, and sound a lot better. So we registered HIFIMAN EXPRESS trademark, and designed several new products under this brand. HM-101 portable USB DAC is the first one. Several new products such as RE-242 iphone compatible IEM will coming soon. We will keep use HIFIMAN trademark for Hi-Fi market in the future. 

 

HM-101 USB DAC

Order Link: http://www.head-direct.com/Products/?act=detail&id=113#

Price: 39 USD

 

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Why we build HM-101 USB DAC

 

Most modern computers have on-board sound cards, which provide relatively lean and cold sound. People call it "digital sound". Sometimes on-board soundcard have bad signal to noise issue so that customer can hear noise from sound card headphone output. Hifiman express HM-101 is a very small USB sound card ( as small as a matchbox) with headphone amp output and line output. We use one of the best sound quality USB D/A convertor chip Burr-brown PCM2702 as the key component in HM-101. We designed the headphone amplifer with the famous headphone amplifier chip TDA1308, with about 50 to 70 mw headphone output. HM-101 USB DAC can be used on both Windows and Mac. 

 

Spec

Frequency Response: 20 to 20k Hz
THD: 0.07%
S/N: 96 dB
Stereo Crosstalk: 78 dB
Headphone Amplifier Output:
62 mw at 36 Ohm
26 mw at 150 Ohm
Dimension: 36 * 60.5 * 13.8 mm

 

 

Reply
post #2 of 8

looks great, everyone should get one with this price

post #3 of 8

How big is the built-in memory? Support microSD?

 

Does it sound better than the Sansa Clip+???

post #4 of 8

It is a USB DAC, not a DAP.

post #5 of 8

 

I think umvue was joking........ but he does write stupid posts like that a fair bit.

 

 

I'll post my impressions as soon as I receive the HM-101, I have high hopes for the chips it's using along with the price, but we'll see.

post #6 of 8
Quote:
Originally Posted by kiteki View Post

 

I think umvue was joking........ but he does write stupid posts like that a fair bit.

 

 

I'll post my impressions as soon as I receive the HM-101, I have high hopes for the chips it's using along with the price, but we'll see.



Actually, I wasn't joking. I thought the HM line means DAP, so I didn't read the thread title fully in the first glance. I think it is a mistake not to make this a DAP because "consumers" don't have the concept of DAC/amp. I think I will pass this time...

post #7 of 8

 

but piggy... it's a thirty-nine dollar DAC/Amp!

 

If they want to sell it to conumers, they should really call this an external soundcard though.

 

 

post #8 of 8

Hi Fang, going on the specs of the chip ( http://www.datasheetcatalog.org/datasheet/texasinstruments/pcm2702.pdf ) please confirm is this is a 16 bit capable of 32/44.1/48. Thanks.

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