This is a final overview video of the muzishare X7 vs the R8 and some tube rolling advice. After some extensive listening tests, ended up with a set of KT88-Z black coated tubes, a gold lion 12AX7 and the gold pin version of the EH 12AU7 with the supplied Sovtek rectifier. This setup in the X7 sounds really nice and clean. The X7 also clearly outperforms the R8 with another carefully selected set of tubes and extensive mods.