As for the Sky, it is a great cable at a great (high) price. Niagara will save you 40% to 50% on the used market, and the sound quality is not much less. See this review:
http://www.polkaudio.com/forums/archive/index.php/t-61655.html
Again, when dealing with the lower line AQ cables, put the money for the dbs upgrade toward the next higher AQ cable.
http://www.polkaudio.com/forums/archive/index.php/t-61655.html
Again, when dealing with the lower line AQ cables, put the money for the dbs upgrade toward the next higher AQ cable.