No one actually knows how to lculate what speaker cable they need

Can someone provide a link for a reasonably priced crimping tool that can handle 1/0 - 3/0 AWG cable termination? Don’t want to spend hundreds.   

Granny ring,

If you use the terminal ring/spade linked above, you can crimp the terminal with 8” channel locks.  The medal is soft.  Alternatively, Amazon has $15 crimping tools, including one that has a cradle and piston you hit with a hammer.  I suggest you try the channel locks first, allowing one of the tabs on the terminal to overlap the other.  To keep the wire from coming out of the terminal, I bent over few of the strands before crimping.  I achieved a very tight and secure fit.

Good Luck

This is utterly fascinating.

I may split the cable into two equal portions then both crimp and solder. A good soldering iron would flow solder without too much difficulty and quickly.  I like the termination process of crimp and solder. I would simply stack the two spades at the binding post. Still thinking on this.

Good luck to all of you, building your new cables.

Hope you'll enjoy the process as well as the results.

Thanks for the sharing.