Phono Preamp. With transformer or fully active

What is the difference in sound between a fully active phono stage and one that uses a transformer for part of gain 

I read  discussions in External SUT’s being used and phono stages with built in transformers ?

I noticed that CJ Tea2 has two inputs one is with transformer & one is fully active ?

l also read discussions on fully active 
What is better?   Lol

is the sound softer, more detail , more soundstaging? Quieter?

jeff