This isn't really a "mod" but I am (finally) burning in Kevin's newest creation. I have one of the beta versions of his Sonas Veritas phono stage and it is a dreadnaut, over 37 pounds! Three stage fully differential series feed, transformer coupled design. LL1931 inputs, LL1660 interstage and LL1689 outputs. It uses a LL1650 PS trannie that could power a Dyna ST-70! All current source tails on the cathodes and current source feeds on the B+ of each stage. Will start to listen to it in a couple of days (I'm also in the process of burning in new cabling on my tone arm). Will report on improvement to SE parafeed phono stage if anyone is interested.