I have an NBS cord that I purchased for about $100. It was defiitely a step up from the stock cords and well worth the money. I also made some cords using some Tara speaker cable and Hubbell plugs, They were also an improvement, and actually, on par with the NBS. Unfortunately, I also made the mistake of listening to the Shunyata cords, which are hideously expensive ($695 list for the Black Mambo), but absolutely AMAZING. The improvement was easily on par with any power conditioner I've heard (of course, I haven't heard the well-reviewed Accuphase, but I am currently using the Bybee). All in all an amazing product. I will also say that I have found cords to be VERY system dependent, and would definitely try before you buy, or get a money back guarantee.
