2wice now I have returned spendy cables because I could hear no audible improvement. Make sure you know a return policy before you buy and then do some comparisons.

I have also ditched 2 pair of DIY cables because they sounded terrible. It goes both ways IME.
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J.Mimna Photography
Live Concert Recordist

Outlaw 970>
Emotiva XPA-2>
Martin Logan Preface

Some Of My Live Recordings: http://www.archive.org/bookmarks/J.Mimna

My Concert Photographs: http://www.flickr.com/photos/jimna/collections/72157613267633153/