The next project I am going to build, if I ever have money again, is going to be an unbalanced to balanced conversion box using THAT 1646 chips, specifically designed to do that job. This is for my home stereo. The Tube preamp I have is RCA out, but the power amp is XLR in. Right now I'm using an adapter cable and it's fine, but it results in signal loss. I have PCBs for the 1646 chips coming.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko