Kudos to Wyred! I'm fortunate enough to live in the same (small) town as their facilities. I'm running their SX 500 mono's and have met and spoke many times with EJ, head of product dev and owner. A stellar guy.
Wyred 4 sound has great customer service
I would just like to send a public kudos to a greta american made product. I bought a DAC2 form wyred several months ago but did not even open it for 4 months. I could not get it to work but I thought that I had set it up incorrectly. Two months later I tried again and realized it wasn't working. So six months after purchasing it I sent them an emali saying that they had sent me a defective unit. Sight unseen, no questions asked, no further tests the sent me a new one. They didn't even charge shipping. They didn't ask me if I had dropped it or hooked up incorrectly or used the wrong OS. They just trusted me, and sent me a brand new unit. Which by the way sounds great through the USB port. These guys are manufacturing in the US, selling at a great price, and provide unsurpassed customer service. Check them out