Can I Use Phone Wire To Wire Speakers?

Phone wires are not large enough to get a good reception out of your speakers,
unless, of course, they are miniature speakers. I have known of technicians who
used #10 stranded wire to wire stereo
speakers when they used 12" woofer
speakers. Ope this will be of help to you.

Yes, you can! In fact you can use just about any kind of wire. I have used telephone wire and it works perfectly fine.