Hi, Charles, yes, I heard the first generation of it in my system, however, the later version to my ears, using the DR version of the 6H30 tube is substantially better.
I am unclear whether the OP was looking for a line stage or a full-on preamp that included phono. In another discussion, the point was made that given the cost of the separates plus the level of interconnect required to connect the two components, one could buy a pretty stratospherically priced full (with phono) preamp. Buying used, of course has its advantages too.
Regards,