Need copper speaker cable recommendations $300 ish

There's a company called HCM Audio in the US, they are currently offering closeout deals on Audioquest GBC and GLC speaker cable sets, a 8ft pair of the GBC is listed at less than $150 terminated. They are also listing "Extreme Silver" IC cables at about 1/4 of the original prices, just to give  some idea of what you might save. I believe the cables are stocks of cable types made redundant by upgrades in the Audioquest line, and bought up by the retailer but are still regarded as genuine Audioquest.If the GBC is the same cable that was superseded by the Gibraltar when Audioquest went over to the DBS system for their higher end cables then it's an excellent cable. I have no connection with either company but have been using Audioquest cables for many years. Not sure where you are (if) in the US so I can't comment on taxes and delivery costs. 

Isn't there a cable company in the US that allows you to try cables at home and return them if you're not happy? I seem to recall one many years ago and wishing that we, in the UK, had access to a supplier like that.
Good luck with the search

Visit VH Audio for both quality bulk cable and made-up cables. Another very good supplier like PartsConnexion but with different merchandise.

last time I researched, long time ago, I decided to believe in avoiding the ’skin effect’

read here

https://en.wikipedia.org/wiki/Litz_wire

so, no large diameter strands, each strand individually jacketed or coated to maintain individuality except at ends.

I made my own using Cat 5 cables, 8 wires per leg. My friend doubled his, 16 strands per leg. There is a reason to avoid long runs of Cat 5 I think, someone else here explained it.

you might make your own, buy some nice connectors, spend the rest of the $300. on content.

Try Blue Jeans Cable. Good copper stuff and very affordable.

http://www.bluejeanscable.com/