What type of copper is best for power cable?

I haven't tried buying Marinco connectors yet. There is a local representative I can call on Monday. Will see then.
The odd things is I've been going all over town to find a decent female plug but can't seem to find any store that carry them. The only thing they have is the male plugs.

If you are looking for IEC connectors, you probably won't find them anywhere locally unless you get lucky. Pretty much a mail order item for decent quality plugs.

Solid copper is ALWAYS superior to stranded copper in every way other than in flexibility and sheer physical strength. Once the solid conductor becomes damaged due to stress or fatigue, the multi-conductor stranded design may have a few advantages. Sean
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You will have a very difficult time finding female re-wireable IEC connectors. Most of the mainstream manufacturers such as HUBBELL, Pass & Seymore etc, do not manufacture them. Several are available though. They are manufactured by Schurter, Marinco/Wattgate, Furotech and also NEOTECH. The least expensive of these is the Schurter, however it does not lend itselt to large gauge cables, so most manufacturers use the much more pricy
Marinco/Wattgate. in order to simplify assembly.I supply some of these connectors to a number of manufacturers
in the industry. If any audiogon members have questions about IEC or need a source for these and other connectors thay can contact me directly via e-mail at audioparts@bellsouth.net. Hope the information helps.

Stu

I recently looked into this issue and determined that solid copper is the way to go by asking questions to a local cabel manufacturer

Solid core copper, 11 ga or lower, teflon insulated & cryogenically treated.