Usher Audio Serial Numbers

How do I find manufacturing info from Usher Audio serial numbers
I have a pair of 8571’s that I would like to know about.
Thanks

orelayer12-29-2019 2:16am

audibleguy Details Discussions Posts This discussion Message User 147 posts 12-30-2019 at 07:03pm Copy Comment URL Report Comment Edit Delete I would suggest going on their website and writing to them in Taiwan, I did that for some question I had on mine and they responded in a few days.