yes they are, esp on high-quality amps such as yours. the how/why's are perhaps too big a topic right now (do a search for many other prior discussions), but take my word for it, it's not snake oil as some would like to believe.
My suggestion: go to your local audioshop, borrow some and try them against whatever stock chord you now have.
here's a link that might be helpful for you:
http://forum.audiogon.com/cgi-bin/fr.pl?fcabl&1126482002
My suggestion: go to your local audioshop, borrow some and try them against whatever stock chord you now have.
here's a link that might be helpful for you:
http://forum.audiogon.com/cgi-bin/fr.pl?fcabl&1126482002