Oklahoma eBay seller "mediaworks-okc" Bryston DAC


I was just checking eBay for any used Bryston BDA-2 dacs & found a service for $649 by media works-okc for the BDA1 & BDA2 that is supposed to take these units up several notches higher with all kinds of claimed sonic improvements. I thought my BDA1 was pretty decent already. Has anyone heard of or used this company?
The details about which specific parts are upgraded is a bit sketchy but they did have a photo showing a bunch of what are presumed upgrade parts. They do say that the work will DEFINITELY void your warranty.
masi61
Call Bryston about them. If they are for real, Bryston may agree they do good work (even if the warranty is voided). If Bryston waves you off, be cautious.
They don't seem to explain in the add exactly what they do. Something to do with the power supply is all I get out of it. Compare this to what Modwright lists for their Oppo and Sony mods.

I would stay away.
Trying to get or getting "Money For Nothing" is the best way to make living. Take it from there first.