@tubeguy76 - 2 x 16 gauge would make a good signal conductor for a speaker cable. But for the neutral I would recommend a 12 gauge wire.
Take a look at this thread - it’s very educational with lots of great DIY ideas for cables/conncetors that outperofrm most of the top brands available today
I use these cables at present and I am extremely happy with them
- superb clarity and details
- very fast dynamics
- excellent imaging
If you are going to the trouble of building your own cables then go for the Helix - the extra effort is well worth it.
BTW duelund it very good, but there is better wire available - just depends on your listening preferences
- Duelund is mellow wire
- UP-OCC wire is more dynamic and more detailed
- UP-OCC Silver is extremely detailed and provides superb clarity and imaging
It really depends on your listening preferences
Regards - Steve