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Old 25th February 2013, 12:58 AM   #201
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Default CM6631A firmware and issues...

Hi all.

Got the CM6631 unit. Opened up case and it's the CM6631A. Works with the Emotiva XDA-2 drivers in Windows 8.

I tried it with the MacBook Pro running OS X 1.8.2 and it's recognized as standard USB Audio, not HD Audio - only up to 48kHz.

Any tips for this? I thought it was supposed to run in OS X plug-and-play?

Here's what the USB2 Audio FW Tool shows - VID 0D8C / PID 0314. I assume no firmware upgrade for this?
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Old 25th February 2013, 01:01 AM   #202
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Hi all.

Got the CM6631 unit. Opened up case and it's the CM6631A. Works with the Emotiva XDA-2 drivers in Windows 8.

I tried it with the MacBook Pro running OS X 1.8.2 and it's recognized as standard USB Audio, not HD Audio - only up to 48kHz.

Any tips for this? I thought it was supposed to run in OS X plug-and-play?

USB2 Audio FW shows VID: 0D8C / PID: 0314 / FW: 0108. Any alternative firmwares for this unit?
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Old 25th February 2013, 01:11 AM   #203
wklie is offline wklie  Hong Kong
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Quote:
Originally Posted by Archimago View Post
Hi all.
I tried it with the MacBook Pro running OS X 1.8.2 and it's recognized as standard USB Audio, not HD Audio - only up to 48kHz.

Here's what the USB2 Audio FW Tool shows - VID 0D8C / PID 0314. I assume no firmware upgrade for this?
Did you power up the CM6631A unit _before_ connecting it to the Mac? Or after?

According to this document, try unplugging and reconnecting the unit to your Mac:
http://emotiva.com/resources/media/x...le_Drivers.pdf

You have the same firmware as mine.

Last edited by wklie; 25th February 2013 at 01:17 AM.
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Old 25th February 2013, 02:33 AM   #204
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Quote:
Originally Posted by wklie View Post
Did you power up the CM6631A unit _before_ connecting it to the Mac? Or after?

According to this document, try unplugging and reconnecting the unit to your Mac:
http://emotiva.com/resources/media/x...le_Drivers.pdf

You have the same firmware as mine.
Thanks for the tip wklie.

Unfortunately still cannot get the MacBooks to run in high-res with the CM6631A device. Strange since "MIDI Studio" does call it "USB2.0 High-Speed True HD Audio" but when I look at the "Audio Devices", I still cannot go beyond 48kHz.

The interesting thing is that I have the ASUS Essence One also and it works fine on the laptop all the way to 192kHz, so I have the driver in there!

Is there any way to flash this with the Essence One firmware?! Maybe that will work...
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Old 25th February 2013, 04:19 AM   #205
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BTW: I did try the unplugging/reconnecting, with and without external AC adaptor, even tried 4 USB cables... No luck!
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Old 25th February 2013, 06:09 AM   #206
wklie is offline wklie  Hong Kong
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Quote:
Originally Posted by Archimago View Post
Is there any way to flash this with the Essence One firmware?! Maybe that will work...
Since CM6631 firmware cannot be used on CM6631A, flashing the Essence Once CM6631 firmware to your CM6631A sounds really risky.

What type of product did you get? DAC, headphone amp or USB-to-SPDIF converter?
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Old 25th February 2013, 01:23 PM   #207
wklie is offline wklie  Hong Kong
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In case anyone is interested, here's a summary of my experience of purchasing a completed kit of Weiliang's CM6631A USB-to-SPDIF converter with sealed transformer plus TCXO upgrade.

- This product is available in configurations of: 1. completed board, 2. completed board + transformer, 3. completed kit with case, 4. completed kit + TCXO upgrade, in order of price (the eBay shop does not show these many configurations though)
- They did not update their product descriptions, but I believe all of the new orders are shipped with the new CM6631A instead of CM6631
- It toke 7 days for the product to be shipped. (Note: I'm located in Hong Kong, so I can use taobao instead of eBay, and there is a price difference.)
- The solder paste left on the board is not cleaned. This is not a concern for me because a coworker taught me how to clean it. I read a competitor attack them for not cleaning the boards before shipping to customers.
- It shows that it is a DIY product by having different screws for the back of the case. Three screws are short, one is long. Again this is not a concern for me - I know I'm not buying a Panasonic-class device.
- Only after I got the product did I read some bad comments for the included BingZi transformer about its durability, even though it is fairly popular with DIY audio products from different sellers. My unit is still working well and I hope it remains this way for several years...

About my issues with ASIO:
- My unit came with firmware 0108 PID 0x0314.
- Native CMedia ASIO output has no sound, although DirectSound and WASAPI (push), and ASIO4ALL all work fine.
- I sent PM to Weiliang but he has not logged on to this forum for many weeks. So I could only talk to their staff via another means of messaging.
- They believed it is an error with my PC configuration, sent me drivers and offered to diagnose my PC via remote assistance, which I did not go through.
- tdtsai explained that the ASIO drivers are designed to output to speakers and headphones only, not SPDIF, if the PID is 0x0314. For ASIO output to SPDIF using current drivers, PID needs to be 0x0319.
- Then I asked them whether they have firmware with PID 0x0319. They said they only have firmware 0101 and 0108.
- I asked them to send firmware 0101 and 0108 to me anyway. Then I found their 0101 has PID 0x0319, the 0108 has PID 0x0314.
- Using Windows XP I was able to switch between these two firmwares, and with significant help with tdsai, found that:
- Firmware 0101 PID 0x0319 can output to SPDIF via CMedia ASIO, but it will never passthrough DTS and AC3 because the unit shows up only as Speakers instead of SPDIF on Windows 7 x64.
- Firmware 0108 PID 0x0314, using current drivers, will not output to SPDIF via ASIO, but it can passthrough DTS and AC3 correctly. With this firmware, SPDIF, Speakers and Heaphones show up on Windows 7 x64 even though my unit does not have Speakers or Headphone output. DTS passthrough using both DirectSound in MPC-HC x64 or WASAPI in MPC-HC x32 + ReClock are tested to be working normally.
- Because I do need the DTS/AC3 passthrough, I'll stick to the PID 0x0314 firmware and hope that future drivers may enable ASIO output to SPDIF.

Thanks to tdtsai and everyone who helped.
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Old 25th February 2013, 10:03 PM   #208
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Quote:
Originally Posted by wklie View Post
Since CM6631 firmware cannot be used on CM6631A, flashing the Essence Once CM6631 firmware to your CM6631A sounds really risky.

What type of product did you get? DAC, headphone amp or USB-to-SPDIF converter?
It's just a USB --> SPDIF converter I have.
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Old 26th February 2013, 04:45 AM   #209
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wklie, great that you've been able to solve all your issues since you helped everyone here that had problems but did not manage to solve your own until now;
you could/should upload on a hosting page those 2 firmwares for the CM6631A so that people who come here looking for solutions to their problems could find all possible solutions/combinations including the 2 firmware links that I posted a while ago for plain CM6631 and now also for CM6631A
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Old 26th February 2013, 06:54 AM   #210
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Quote:
Originally Posted by luxury54 View Post
wklie, great that you've been able to solve all your issues since you helped everyone here that had problems but did not manage to solve your own until now;
you could/should upload on a hosting page those 2 firmwares for the CM6631A so that people who come here looking for solutions to their problems could find all possible solutions/combinations including the 2 firmware links that I posted a while ago for plain CM6631 and now also for CM6631A
Yes! Please post the CM6631A firmware...
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