Just to back up the original poster on this - I also had a bad experience purchasing the Dual Core 2.0 from Simplifi Audio. Company states on its website that you can return the Dual Core within 20 days and get a 90% refund IIRC, and that they will refund your money within three weeks. I sent my Dual Core back as per the instructions and had to wait five months for the refund. Numerous calls went unanswered. When I did reach Mr. Ryan he would promise to refund the money within a few days, but it never happened. This occurred so many times I lost count. I often got the same excuses - he was attending a trade show, had to pay the fees, didn't have phone coverage, etc. etc. My friends told me I would never see the money. Finally I contacted a lawyer, and on that very day, by chance, I got my refund. Needless to say I will be avoiding Simplifi Audio.
btw, the reason I sent it back: I didn't like the sound of the Dual Core. It was too stereotypically "digital" and edgy. Mr. Ryan's suggestion was to purchase a separate power supply from him. I declined.
