Wow Arny, thanks for that nice response.
One other question. The bottom half of these Polk RT3000 speakers is a subwoofer. Like I said, I don't remember why I chose the MIT Terminator4 interconnects ten years ago. But, I'm pretty sure they're not RG6-type subwoofer cables that many people say are "the way to go". I even talked to Polk and they said, "use a subwoofer cable". Would it be alright for my 6 to 10 feet of extra interconnect to be RG6-type "subwoofer" cable? Connected to a regular analog RCA interconnect? Or should I extend my Terminator4 cable with something similar to itself?