I just picked up the 4001 in trade, and while the cable is ridiculously amazing and immensely innovative, I won't ever use it because it has the memory wire. This system negates ever having to buy another cable based on the device or output jack type. Balanced, singles ended adapters are all included. My ears are shaped oddlt and I have never been able to use cables with memory wire. You won'tfind a better cable, plus all the attachments, that's for sure. You wont even be able to buy this specific model (unless you as buy everthe 4001 of course) as a separate item. This is a better wire than the hulk system (better twist pattern, improved outer shell, and thicker gauge wire), that will be for sale as a set.