I have had a Lyra Delos, moving coil cart for the last 10~12 years which puts out ~.0.5mV of signal. Boron cantilever, line contact diamond stylus. It replaced a Benz Micro Glider MC around the same price point. (a shade under $2K). I have always felt that the C-J EF1 was the weak link in my system. C-J Premier 17LS preamp. C-J LP66S amp. All vacuum tube set up. My ear likes tubes over solid state. Kef Reference 3~2 speakers, SVS unported subwoofers (2). (The SVS have ~600 Watt class D powered amps built into them....they do a good job of digging into the very bottom end) Very good audioquest king cobra interconnects along with audioquest speaker cable to all 4 speakers. All the same length with pure silver connectors.
I originally had the loading set to 200 Ohms resistance in the EF-1. I got some bug to change it, most likely from reading some posts here in regards to loading.....47K (basically unloaded) was not the way to go with a moving coil.... We all live and learn. Its a fun hobby!