Just an extra note - If you want a refund / return / exchange, you need to contact the seller, not FiiO. The way their business is setup is that the seller is taking the responsibility to handle everything except warranty repair. So if something is wrong when you first received your device, you ask the seller for help. That's also why it is better not to save a couple of bucks to buy FiiO from oversea seller, especially if they are not authorized dealer and tend to ignore the buyer if anything goes wrong. FiiO has no control over third party seller and the best thing FiiO can do is offering an warranty repair where you have to send the item all the way back to China.
Also note that FiiO sale figure on amps is >10K a month, so there will be quite a few lemon even if the defective rate is very low.
Edited by ClieOS - 12/6/13 at 7:18pm