By far, my most significant system upgrade!

I have always known how important speaker cables are.
So much so that I had spent $5K on my former cable.
But moved by slam dunk rave reviews and the knowledge of the integrity of designer, Jeff Silver, I bought his new masterpiece.
Amazingly, I spent a mere $1K and $275 on the bi wire and discovered a speaker cable that made my former cable sound like junk. Silversmith Fidelium!