Hi, I need to run a cable for my sub.
Down through the floor, across the floor joist in the basement, up through the floor in the back of the room into a closet where the equipment stack will sit.

My measurement estimate (conserative) is 40 feet. Here are my questions:

What kind of cable should I run ?
What gauge ?
Where can I get it ?

What's the difference between your answer to the above and a pre-made cable (shall I dare say it) monster ?

What other brand can I find pre-made to run from the sub out across this 40 feet ? And where can I find it ?

Thanks !!!

Mikey