Funny you guys mention the Promithues Reference tvc. I actually ordered one a week ago. I'm supposed to get it 2-3 weeks, or something like that. I was super on the fence about ordering it because I read on forums the guy is super sketchy, and people waited for over a year for their orders.... If I end up getting it anytime soon I'll post some impressions here. I actually didn't even buy it for the preamp capabilities, I wanted a good XLR balanced to RCA unbalanced converter haha. The volume control is def a plus tho. It is one of the cheaper TVC out there, why I bought it. Guy has an extensive background in transformer design so I assumed it might be good. Who knows.