Hi there fellows.
Good news for audio-gd DAC or DI - users with a Squeezebox Touch! They can now be connected over Asynchronous USB.
It might work for other TE8802L - Based DACs, too. In particular for instance, TEAC UD-H01. Here is a list of some of them:
PLEASE REPORT ON THIS FORUM, IF IT WORKS:
Now comes the most important part. Say thank you to Triode. He is british and worked on that many hours, even during the GB against Italy - game yesterday evening! Even the numerous tryouts and log file creations, that I did to assist Triode, took me hours, so developping must have been a big work.
This current version is still in Development Stage. I am able to play up to 24 bit / 192 khz - files with it, and they sound great. But nobody can guarantee, that this will work for all users and any setups!
All the modifications in this guide are at your own risk. They are not supported by any vendor, nor by myslef, nor by the developper Triode, nor by anybody else. They are in particular not supported by Logitech, audio-gd or Tenor (gfec). Any damage will be on your own risk! If you go further in this guide, you accept this condition!
However... For me, I can tell you, that it works. I have a Squeezebox Touch and a audio-gd DI-DSP with external power supply DI-PSU. This is then connected to a Audio-gd Reference 9 DAC over I2S.SBT has never sounded better before! In my opinion, it sounds much better than connected over SPDIF (even with all software modifications, TT3.0, linear power supply, etc.).
It should work at least with all audio-gd DACs that have a TE8802L - based - USB-input (or that are upgraded with a TE8802L - module)
Here is the guide:
- I recommend, you use a DAC, that is externally powered, NOT USB-powered. The DAC may work over USB power, but I can not tell for sure. If your DAC has no separate power input, this usb - linear power - interface may help, and it will by the way enhance your sound quality: http://www.aqvox.de/usb-power_en.html ).
- Everything on the SBT and on the Logitech Media Server is updated to the latest versions and runs with default settings. - Logitech Media Server must run on an external computer (or NAT), and Squeezebox Touch must be connected with this external server via Network. Wired ethernet LAN is best, if possible. Provide a robust connection, in particular if streaming bit-hungry high-res files.
- connect the TE8802 - based - DAC to the Squeezebox Touch (SBT) over a good USB cable.
- Access the configuration screen of the Logitech Media Server over a web browser.
- Go to the plugins - tab and add http://triodeapplets.googlecode.com/svn/trunk/usbtestrepo.xml as additional repository.
- Go to the SBT, go to the applet installer (in settings, extended settings)
- Uncheck the tab that limits the choice to recommended apps
- Choose "Enhanced Digital Output" and install it. It will reboot, download a Kernel and reboot again.
- Play a song, it will not sound, but this is to make sure, your SBT is connected to the server
- Go again to the applet instller and install "Kernel Updater". SBT will reboot.
- Go to Kernel Updater (in settings, extended settings). Install Kernel #11. Wait until SBT reboots completely.
- Disconnect the power connection of the SBT and disconnect power from the DAC. Wait 10 seconds.
- Power on DAC and wait 10 seconds
- Power on the SBT and wait until it boots
- Go to the Audio-Settings and choose Digital Output. Choose your DAC!
- Listen to the music
"Audiophile" recommendations: Choose "Screen disabled" screensaver while playing. If you attach a volume regulated preamp to your DAC, consider setting the SBT to 100% volume lock. Additional mods to the SBT, like TT3.0, will most probably not work with default settings. They may work, but you will have to manually adjust priority settings, you find lots of discussions about that on the http://forums.slimdevices.com . However, these settings may make the SBT not respond anymore. This can usually be resolved with a factory reset, but again, there is no guarantee.
To revert everything back to the original stage and factory defaults:
- Power on the SBT
- Hold down the little reset button on the back of the SBT just above the DC power plug for 10 seconds. This does the factory reset of the settings, but NOT of the installed Kernel !
- Let the SBT boot up to "Factory Settings".
- Go to the Software Updating Menu (in settings, extended settings)
- Force to "update" the Logitech Firmware
- Let the SBT boot up completely.
- Do another factory reset
Edited by ursdiego - 6/25/12 at 5:30am