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Squeezebox Touch simple 24/192 output mod

A call to all owners of the Squeezebox Touch. You can now install a simple third party app ("Enhanced Digital Output") developed by Triode that allows your Touch to output true 24/192 to your DAC via USB or Coax SPDIF. You need the latest updated Media Server 7.2 installed first. It installs a linux kernal that enables the high res digital output and disables the analog outputs (which you don't need if using a DAC anyway). I installed in a few minutes and can attest that it does improve the overall sound quality. My Bel Canto DAC3 is an earlier model that is capable up to 24/176.4 input and I successfully passed a file of that size and it sounds great. Many others who have 24/192 capability have successfully passed files of that quality as well as long as their processors can handle that input. Logitech is not officially supporting this app, but it really lets your Touch shine and handle the high res files. Apparently the Touch has had this capability all along but has not been unleashed yet. Please share your experiences and get the word out. The Touch will be an even better value than it is now. Enjoy!

For more info go to http://forums.slimdevices.com/showthread.php?94512-Announce-Enhanced-Digital-Output-app-USB-Dac-and-192k-Digital-Ouput
swanny76109

Showing 1 response by kijanki

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kijanki
4,451 posts
 
Bondmap - Read my previous comment from the other thread:

"Mofimadness - What John Siau is talking about is update rate of D/A IC. This IC (AD1853) is updated in Benchmark DAC1 from asynchronous rate converter (AD1896) at about 110kHz independently of input rate. The reason for that is not only 20dB better filtering but also lower THD of the DAC at 110kHz compare to THD at max update rate of AD1853=192kHz. Penalty for that is bandwidth of 55kHz vs possible 96kHz but there is very little harmonic info above 55kHz. It all has nothing to do with input rate. He is also talking about oversampling rates in general terms since DAC1 is not oversampling but upsampling meaning that rate is not even multiple anyway. In case of Benchmark DAC1 it is in order of million times upsample then downsample to 110kHz thanks to mathematical manipulations.

In general 192kHz carries more info than 96kHz but I doubt you can hear any improvement."
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