now I'm curious if Monster doesn't recommend longer than 30 foot runs because they don't sell em OR they don't sell em because more than 30 foot runs really does have signal loss.
re: audioholics article, there's no recommendation on the max length of unbalanced interconnect wire. hmm
I haven't read this, but I found this one:
http://www.empiricalaudio.com/frAudio_FAQ's.html
after scanning through it, I think it's some sort of audiophile site, hmmm