Ewww Monster is horrible and I’m not putting anything Monster in my theater walls. They are horrible. I’m sure they use stranded core wires, as in plural wires at that.
Actually, a lot of audiophiles use RG59 for subwoofer cable, and R6 solid copper is an improvement over that. Blue Jeans cable makes them using the method I intend to use.
This is a powered subwoofer mind you, so the signal going to the subwoofer is DIGITAL Line Out, for which RG is perfect for long runs and maintains constant 75 ohm impedance. Now, if you were talking about a passive sub receiving an analog signal, I would agree with you.
I found that Canare makes connectors like I am searching for. Not sure if there is anything better. If anybody knows please let me know.