Imperative upgrade imho. I recall the day a few years ago when I first introduced a decent power-bar (appr. $ 150) and 2 after-market cords (each appr. $ 100) in my system. The dealer had lent the gear to me over the weekend and I never returned it; it was like drinking a nice cool beer from an appropriate glass when you're really thirsty instead of the bottle-neck or a can.
Try and find someone who will lend you cords for auditioning before you open your wallet. I think you'll find it rewarding if you went for something in the price range I cited. VooDoo Cable's entry level could be one starting point. One of many, I'm sure, but I have found Bruce's recommendations very precise and valuable, surely an advantage as you may have to lend special attention to the sub.
Good luck.
Try and find someone who will lend you cords for auditioning before you open your wallet. I think you'll find it rewarding if you went for something in the price range I cited. VooDoo Cable's entry level could be one starting point. One of many, I'm sure, but I have found Bruce's recommendations very precise and valuable, surely an advantage as you may have to lend special attention to the sub.
Good luck.