Before you buy the cables,look up the price of silver per ounce. Please mthat "pure silver" may be used as an idiom.
In my opinion,
For high efficiency speakers, you don't need a large gauge of wire. Anything larger than 12 gauge for 8 ft pair is overkill. Lizwire speaker cable like bogdan and interconnects are good choice for the money. I would at least make my own speaker cable if you don't know how to terminate properly.
Pure silver is a bit pricy.
"Pure silver is a bit pricy"
Do not know where you are looking ,but there are a few places it is really inexpensive and you can save $$ rather than buy from Bogdan and the like. 100' 26AWG for around $25 and get yourself some Eichmanns and your all set. You ill need teflon,Heatshrink and some serious Burn-in time.