I have read the wisdom of the members here regarding large speaker wire, and I've been made aware of all of the controversies. I just got an Onkyo 660 HTIB (best sound for the price by far), and it comes with pretty skinny wire (18 or smaller I'd imagine). My question is: Am I ( a non-audiophile, but a guy who enjoys having a properly calibrated HT, has an SPL meter) going to notice a difference or not? If the difference is LARGE, I'd go to Home Depot and pick up some 12 gauge wire, but if it's something I'm going to have to convince myself of, I'd probably rather not spend the $$$. Can anyone help? Thanks.