Long ago I tried solid core wire under the floor in the crawl space for the rear surround and sub, figuring, long runs, ... Waste of time, didn’t sound that good, and who cares for rear surround and sub perfection anyway.
The wire is very stiff, and tightening a loop of two pieces of 14 awg solid will be difficult, and you can break the post if trying for a very tight connection. I suggest you hammer the ends together ’flat’ to get good contact and snug connections without too much stress on the binding post.
You could buy short run from Home Depot (they sell by the foot), try making the connection.
There is the issue of ’skin effect’ whereby frequencies on the outside of solid core are not perfectly time aligned with frequencies on the inner part of the solid core. Eh, at our lengths, a real issue?
https://www.powerstream.com/Wire_Size.htm
Multi-Strand, many small gauge, individually insulated is the ’concept’ I chose to ’believe. 1st try was 8 conductor telephone wire.
I now use cat 5 or cat six, oxygen free copper, each pair foil wrapped, SFTP. Here is Cat 8, OFC, SFTP, 24 awg. The other day I found 23 awg. 8 x 23 awg is equal to 14 awg
https://www.wirebarn.com/Combined-Wire-Gauge-Calculator_ep_42.html
cut the connectors off, and use WBT type bananas or spades
I twisted about 4 feet, taped, twisted other direction 4 feet, tape ... keeps you from having to flip the wire over for each twist.
I used two colors, red and black, so + and - were obvious at both ends.
wire stripper and crimper
