I bet many readers have seen plenty of speaker cables made with CAT5, but in my approach I only had CAT3 available to me and I didn't want to make a huge effort of it. The difference between CAT5 and CAT3 is not much, CAT3 is isn't used for LAN networks anymore, but for voice networks (PBX/PABX) instead. CAT3 consists of an X amount of pairs of PSTN cable strands, in my case I had 8 pairs giving me 16 strands of copper.
It's so easy to make, I hardly needed any tools. With some effort, the jacket and individual wires can be skimmed by hand and twisted together by hand. It only need to be tinned (soldered) a bit to keep the twisted wires together when putting on banana plugs. Everything was a perfect fit except for tightening the screws on the plugs needed a little effort.
I took a multimeter and did a continuity test, all four cables passed first time. Switched over to resistance test. To make the test easier, I added the very same banana plugs to the probes of the multimeter. The probes alone tested 1.0 ohms. Each cable, at 1.8m each, tested 1.1 ohms within margin of error. I would say, moving to the CAT3 cable (from Kirlin SM-18 OFC Cable) made a difference to the sound. I really wish I had better instruments to measure these cables properly, but I am happy with the results. I must say, them cables really looks boss on my NAD C300.
Probe test.
Cable #1 resistance test.
Cable #2 resistance test
First completed pair.
Connected to NAD C300