I used Sonic Frontiers Phono 1 as my main stage for a while. Sweet sound, spec'd at 64dB but apparently measures around 60dB. There was a very clear line where cartridges ~ 0.45 - 0.5mV would sing with that stage. - full dynamics, good bass, balanced, sweet. Cartridges below that level would sound a bit lean, lacking dynamics, and slightly anemic in bass. Very unengaging. Those same cartridges did fantastic on other phono stages with more gain.
Of course I had plenty of preamp gain to compensate - it didn't help. You need to get the cartridge to phono stage match right first.