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Music servers and other computer based digital audio technologies.

question is:

'In many boxes the first order effects are much greater than the second order ones, almost completely swamping them.'

Are you comparing usb, firewire and others boxes with what you call 1st order effects largely eliminated?

And; are usb cable effects 1st or 2nd order when they have such an influence on the sound quality of triple isolated async usb devices?

There is an interesting article with measurements by Paul Miller in the June issue of HiFi News on the Musical Fidelity CLic in which first order effects appear constant. Comaparing usb, spdif and wired interfaces, usb has the higher distortion and jitter plots over the others (academic since we are looking at very low levels).

Frankly, for less than really serious listening, a box such as the £1250 MF CLiC would seem the much easier and better solution than countless software and hardware mods on a computer replay system.

This would not be my personal choice but for some it seems sensible.

Mercman, have a look at your new 'opto coupled ground?' here:

http://www.inalp.com/technotes/about_optical_isolation.pdf




Edits: 06/16/11

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