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Ayre qb 9 Thesycon driver

Posted on June 26, 2012 at 16:23:26

I recently own a beautiful Ayre QB-9 DAC which had the 192 Hz upgrade.
I had to install the Thesycon driver. Apparantly my PC Windows 7 netbook Asus didn't like that driver. It went well the first day. After rebooting (starting up) the PC., it went wrong. I got a blue-screen and the Ayre DAC displaying 8.L.8 and the stand-by light. Nothing makes it disappear. I had to send it to the dealer... waiting. I hope somebody will deliver me a solution so I could handle the situation myself. I guess there must be a way to reset the dac myself ?
Can somebody give an advise ?

Thank you


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RE: Ayre qb 9 Thesycon driver, posted on June 27, 2012 at 07:28:53
Gordon Rankin

Posts: 2792
Joined: June 9, 2000

I use the QB9 with a ASUS netbook all the time. It has the Win 7 home premium on it and I never had a problem.

I also used their new QA9 as well and it worked fine.

I have one of these on my bench all the time as they are small and easy to use and I have respect for ASUS.

The QB9 does not have a 8.L.8. display that I know of. There are only the six sample rates, hardware error and off.

J. Gordon Rankin


RE: Ayre qb 9 Thesycon driver, posted on June 27, 2012 at 23:27:43

Posts: 11205
Joined: June 1, 2002
Have a look at W7 USB issues:

''6.1.7601 USB Driver Update Fix
This simple utility fixes a Windows 7 and 2008 R2 SP1 update bug originally reported by "Enigma256".

Update: It looks like Microsoft has finally issued an official fix for this problem: KB2529073

1.Download and run this file.
2.This utility will check to make sure that you have the correct Windows version and that the fix is necessary. It will apply the fix only if the fix is applicable and necessary, and it will let you know if your system does not require this fix. There is no harm in running this utility if you are unsure of whether you are affected by the bug.
If you are unsure of whether you trust this utility, you can check its source code and MD5 hashes.''

Look carefully into this before doing anything. Be very careful about MS update KB2529073 before applying it as it disables usb ports on boot on my Gigabyte MBs. Differents versions of W7 actually have different versions of various usb related drivers.

I have warned about 'driverless' and 3rd party driver USB audio devices to the wrath of inmates like Charles Hansen and Gordon. Give me a reliable hires usb audio driver for windows anytime. The M2Tech related and Musiland drivers are 100% rock solid with no issues like yours.


RE: Ayre qb 9 Thesycon driver, posted on July 2, 2012 at 15:10:34

Thank you for the answers.
Something bad must have happened to the QB9 as nowhere on the entire internet anybody seems to have experienced the same problem. I returned the QB9 to the Dutch dealer. Still no message after 2 weeks. Looks to me like trouble ... Hope it will be fixed soon, but most of all, that it won't happen again afterwards.


RE: Ayre qb 9 Thesycon driver, posted on July 3, 2012 at 10:57:11

Posts: 11205
Joined: June 1, 2002
You should post this in the Computer Forum Board and ask Charles Hensen


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