Boy, was I off. In my earlier post, I thought the argument was between coax and toslink cables.

I now realize that we are talking about USB cables. Since USB cables can be used in many different ways, depending on the protocols involved, there may be more justification for concern over quality and ability to recover from errors. However, this doesn't mean that a cable has a certain "sound quality" any more than one brand of CD laser pickup would "sound" different from another.

I also don't understand one thing, where is this USB cable coming from? If it is coming from a computer or component that is connecting to the DAC as a USB Audio interface class then, in my opinion, the cable is irrelevant. But, if it sounds better to you, nothing we can say in this forum will change that.