Hi. Yes this is a legitimate notice and offer. There has been problems with several AK8133 recently so we decided to send out this notice. If yours doesn't have any problem, then you can continue to use the dac and we will continue to support it for 3 years, you don't have to decide now. The updated version will also have black headphone connector.
about 5 years ago
Hi, I have a U2 Async which I purchased from ebay a few wks ago and is working fine. I just received a msg from the seller on ebay (eastern_technology) regarding an issue with Sabre U2 Async DAC that has black connector which apparently has failing AK8133 PLL chip and seller is willing to accept return for new unit (with green connector I presume). He says I can continue to use it but I can return it immediately or if it fails within 3 years. Is this a legitimate notice? There is no longer any U2 Async available on ebay and the HifimeDIY is also out of stock. What should I do?:p