DIY Speaker wire

"The is cheap copper full of impurities.. cheap insulation tooo."

The same cheap wire that is used from your wall outlet to your electrical panel box, that many have their very expensive audio A/C cables connected to.

Just something to think about.

I say try it, you never know. I tried this a while back (12/2, not 12/3 though) and didn't make much difference with my Klipschorns that I had then. Some speakers are more cable sensitive than others.

I need to run 4 sets of speaker wire 24' over a stone floor. There is a fireplace between my speaker (best placement in my 1,100 sq' room) giving me that space behind the main sofa the best placement for my rack of gear. I have removed the passive crossover from an old pair of Speakercraft (4)ribbon/6.5" cone combos and are bi-amping with a pair of vintage McIntosh M60s and Audio Research Classic 120s (4 mono blocks.) I do have a Von Scheikert Tower sub as well. 100 feet of spendy cable could be a fortune. Ideas?

I have used connecting wire as speaker cable which was simgle stranded heavy guage copper that I used 3 to makes a braid. They worked really well,- impurities and all. I eventually only used them as jumpers, then they got replaced by expensive Cardas. Honestly I heard no meaningful differences.