There's a correctness with the P-75 that I haven't heard with any other phono stage at or near its price range. I'm not saying there aren't better phono stages...obviously, with more money, or perhaps a different cartridge. But if you have a 10x5 already that would be my instant go to....plus, if you were to ever go up in the Dynavector line, it will work extremely well with everything up to the XX2, and you can change the modes inside to max out the sound. Above the XX2 I would use a different phono stage.
just be careful....or you'll end up like some of the above posters...lost in the weeds...
no experience with the Lehmann....
Good luck!