It might be heresy to mention my cables - a 5 minute walk to my local 'Dollar Store' where they sell fat 'Heavy Duty' RCA Cables for about 6 bucks max.
Gold(?) plated, tight fitting, noise free, flexible & sound just fine. I use them in both my HT & Audio Systems. They aren't the prettiest but they are not visible as I run them through automotive wire looms to try to keep the clutter to a minimum.
Great bang for the buck...