Brave man, McGowan...


https://www.psaudio.com/pauls-posts/seeds-of-change/#comments

Brave for sure. This will alienate a bunch of people. All cable haters and snake oilers. Very risky business for Paul to post this in public forum. 
128x128thyname
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I listened to a pair of Vandy VLR's powered by the Belles integrated using a Bluesound Node as source.
At first the VLR's were using a lower grade AQ cable (GO-4). When we switched to the William Tell. It was quite obvious that the Vandy's were performing at a significantly higher level.-And, this is without a subwoofer.
In fact, the new cables enabled the VLR's to reproduce bass almost equivalent to when they had the subs connected.
A truly mind boggling event.
Now, would I spend that much on speaker cables for a pair of bookshelf speakers?
Probably not, unless I heard the difference in performance.

Though it might be more rational to buy a higher quality amp and use an off the rack power cord, I think my audition shows that cabling even 2nd tier equipment with high quality power/interconnect/ speaker cables can make a huge difference.
Bob