Definitely concurr w/jaminlogic re:th rca cables-if ur creative, u can make ur own using 2different diameter coax cables-they'll outperform anything u can buy, and u'll save$$$. If ur considering Monster Cables, I think they're overrated junk. Try not to laugh, but the thick 12 foot Radio Shack cables sound pretty decent compared to some others. As for the 2v vs 5v pre-amp outputs, with all due respect, I disagree regarding the signal clarity-the main advantage is better resistance to EMI noise, which can usually be tamed anyway. Go with the better sounding pre-amp whether its 2v or 5v. If its a toss-up, then yeah, go with th 5. Just remember, the standard used to be 1/2 a volt pre-amp output, and some of those units(alpine 7123) sounded better than anything today!