I connect my speakers straight from the wire....I do however use spades on the AVR side (Easier disconnects and stronger attachments - I am always fiddling with the AV componets....LOL)
And Home Depot 14 gauge should be fine in most applications. No in wall - (need rated wire for that) and not to long of a run.
And Home Depot 14 gauge should be fine in most applications. No in wall - (need rated wire for that) and not to long of a run.