You should be able to find Venus Audio on the US version of eBay, too. You're welcome! Can't say for sure. The only cable I've made and used with the HD 650 is an extension made of Mogami W2549, which was completely transparent to my ear. Unfortunately, it's only two conductors plus shield so it won't work as a replacement cable. I'd imagine any well designed cable from a major company will offer a similar transparency, but I can't confirm that from experience.