If you want a well known make/brand then Clearer-Audio would be my choice, they have had good feedback on this forum, and there products are of the highest Qaulity, a freind of mine uses these adapters for Figure of-8 and woks very well.Here is a link, i do not have this make in my set up but can say they are a very good product. http://www.cleareraudio.com/onlinestore/Accessories.html