Вот вам и "дорогой" кабель:

<a href="http://www.home-entertainment.co.uk/archive/reviews/394_printrev.html" title="http://www.home-entertainment.co.uk/archive/reviews/394_printrev.html" target="_blank">http://www.home-entertainment.co.uk/archive/reviews/394_printrev.html</a>

По сути, это какой-то тип коаксиала с низким сопротивлением.

Также цены на другие хорошие кабели:

<a href="http://www.home-entertainment.co.uk/archive/reviews/18_printrev_inter.html" title="http://www.home-entertainment.co.uk/archive/reviews/18_printrev_inter.html" target="_blank">http://www.home-entertainment.co.uk/archive/reviews/18_printrev_inter.html</a>
<a href="http://buy.audiogon.com/cgia/fsb.pl?cabl&1&ctg&st1" title="http://buy.audiogon.com/cgia/fsb.pl?cabl&1&ctg&st1" target="_blank">http://buy.audiogon.com/cgia/fsb.pl?cabl&1&ctg&st1</a>
<a href="http://www.fatwyre.com/speaker9_02.html" title="http://www.fatwyre.com/speaker9_02.html" target="_blank">http://www.fatwyre.com/speaker9_02.html</a>