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Old 20th September 2012, 09:52 AM   #21
anbello is offline anbello  Italy
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Location: Italy
I bought one and arrived yesterday. it's well done and good looking.
I tried it with Linux (Ubuntu 12.04) and it see the board as "Asus Xonar Essence One" and only works in 44.1, 48KHz - 16bit.
Then I tried it with Winodows 7 and Asus driver and it works well at all sample frequencies and bit depth as stated.
On this thread (post #17) I read that exist more option for the firmware (OEM firmware). I would like to know if with the other firmware I can use the board with Linux at 192KHz/24bit and if I can flash the firmware myself.

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Old 21st September 2012, 03:19 AM   #22
john57 is offline john57  United States
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I was able to get WASAPI to work for bit perfect playback on J.River but not ASIO or the WASAPI event style will work on my Win7 64Bit platform besides Direct Sound.
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Old 11th October 2012, 06:14 AM   #23
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Are there any reply from this seller ?
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Old 13th November 2012, 01:41 PM   #24
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I have bought this item from the seller (Weiliang) in of China, the build quality is great. It does sound very smooth and musical, but I have experienced the same problem in J.River Media Center 17, I can use "WASAPI" but I cannot use "ASIO" or "WASAPI-Event Style" which is my preferred output.

My guess is the driver from C-Media CM6631 has problem with "WASAPI-Event Style".
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Old 16th March 2013, 02:59 PM   #25
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Anyone tried this on Mac? Any driver needed? Does all sample rates work?
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Old 15th April 2013, 12:45 PM   #26
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I bought one of your " CM6631 24bit/192khz USB to Coaxial and Optical fiber" v1.4.
Everything works ok on either pc or mac except no output at 176.4khz and 192khz.
Player (foobar2000,amarra,audirvana) show songs are being played, but no output either at optical, coaxial or i2s. 44.1khz,88.2khz and 96khz are playing beautifully. Any idea what's wrong with product ?
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Old 26th June 2013, 09:45 AM   #27
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Join Date: Jun 2013
Hi Mr. Weiliang.
I have bought 2 DAC7 with CM6631 USB modules fom minishow seller (user RAZOR2000SHOP). These units work fine but I have a problem with CM6631 when I try to play wave file in 192khz 24 bits resolution. The sound is good but I have also several scratches noise (non periodic). I'm using a TOSHIBA TECRA pc with WINDOWS7 64bits but the problem is existing also with other computers.
Someone told me that is necessary a new firmware. If this is true could you send me the firmware, the installation tool (for WIN7) and the instructions how to do it?
My emai is:
Thank you in advance.
R. Marin.
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Old 31st December 2013, 07:39 PM   #28
sDieter is offline sDieter  Germany
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Default Macintosh Driver

what makes a Macintosh Driver , Weiliang ?
or consumption of any Mac :-)

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Old 31st December 2013, 07:47 PM   #29
sDieter is offline sDieter  Germany
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Mr. Weiliang,
I have a DAC7 with CM6631 USB modules fom minishow seller.
but my Mac can not find a USB device on the bus.
Normal consumption of the Mac no driver that is there any different?

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Old 3rd January 2014, 06:09 PM   #30
sDieter is offline sDieter  Germany
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Join Date: Sep 2012
Default I myself have found a solution

I myself have found a solution.
Please read on:

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