BEST INTERCONNECT FOR $25 EACH?

Morrow or Signal Cable.

The Duelund will surpass the other cables mentioned. Yes go for them.  I build and sell cables including Duelund.  Feel free to contact me or the Ebay seller if you cannot make your own.  I prefer the 16 gauge Duelund over the 20 gauge as it offers more weight and meat on the bones. 

I'm curious, why no BJC?

I think I studied the strands of the BJC in the past for speaker wire and they didn’t compare to what I normally buy, Phantom Speaker Cable, and figured I would just stick with Phantom rather than go to BJC. Plus it sounds weird but I can’t stand the look of the connectors. They look like lug nuts for electrical wiring. Lol 

After reading the very very interesting article by Jeff Day, it looks like I need shielded wire. 

https://positive-feedback.com/audio-discourse/duelund-coherent-audio-dca16ga-premium-tinned-copper-v...

Since shielded Duelund’s make the price jump quite a bit and they are hard to find, it looks like the Belden 8402 Shielded served Jeff Day quite well before he ran into the Duelund Shielded. For this reason, I may need to turn toward searching for a good price on the 8402 Shielded.