[JoshK]

Why is that?  Is it because it converts from another format prior to conversion to I2S?  

No, it's because the bandwidth of WIFI is insufficient to handle upsampled data streams.

Steve N.

I see, but a number of us, like myself use the wired version, which I believe isn't so limiting on bandwidth.

[audioengr]

Yes, but aren't the bandwidth restrictions eliminated when using a wired Squeezebox?  Of course for upsampled audio the limiting factor becomes the capabilities of the SB (website says it will pass a maximum 24bit/48khz digitial signal).

I would think that if you are just passing non-upsampled audio in the original CD bit/sample rate, there should be no difference between USB>I2S and SB>I2S.

From there, if you wanted to upsample, you could go into a Perpetual P-1A or some upsampling DAC ... thou ...

In theory, there should be no difference between USB to I2S and SB to I2S, but the S/W drivers and associated circuitry may make a difference.
I expect the SB with I2S to be excellent though.

Steve N.

[krikor]

According to this thread at audioasylum, it appears someone has succeeded in going from Squeezebox>I2S>DAC.

So at least we know it is possible.

http://www.audioasylum.com/scripts/t.pl?f=pcaudio&m=12871

[audioengr]

According to this thread at audioasylum, it appears someone has succeeded in going from Squeezebox>I2S>DAC.

So at least we know it is possible.

http://www.audioasylum.com/scripts/t.pl?f=pcaudio&m=12871

Not quite I2S, and not quite ready for prime-time either.

If someone sends me a SB3, I'll put a high-performance I2S on it that can be used with my DAC's.

Steve N.