Knowing Manley quite a time I was nevertheless surprised how musically the small phonostage ChinoOK turns out to be. Even with the factory delivered Sovtek tubes you will not believe the results you may realize in a good environment. I do recommend going MM with excellent and matching SUTs for a 40 Ohm cart, like the SUTs Ortofon T1 or Kondo KSL. Okay these are expensive and make up more than the stage itself if you are able to find a good source. Going for the next level of improvement I followed the advices of some audiophiles using the Amperex 7308 tubes. And this makes again a difference.
I am working with lots of tubes but never have experienced such an enormous change to the warm side, more depth, a fully stable and powerful sound. Being for sure not the first one confronted with this outcome it seems to me that extensive dealing with this little lady does make sense…