The clock is more than just a clock, however. The biggest selling point in my opinion is that it unlocks music server functionality because it has a highly perfected asynchronous USB interface. This would allow any USB capable computer to serve as a transport. The asynchronous USB allows the computer to basically override whatever clock signal the computer would normally generate and use the Puccinni's vastly superior clock. What you then have is a music server TRANSPORT that is clocked by Puccinni--something a conventional Squeezebox device cannot do.
Not to mention, I believe, that asynchronous USB is supposed to be a better sounding interface than coax to begin with.
Not to mention, I believe, that asynchronous USB is supposed to be a better sounding interface than coax to begin with.