There are many many excellent preamps out there, but I won’t be able to audition all of them, so I narrowed down my choice to CH, Gryphon and MSB. I had MSB Reference in my room before Mephisto and Pacific after I got Mephisto, so no direct comparison yet. Based on my memory I could happily live with either dac.Look forward to seeing what you end up doing. Some very difficult and high quality choices where CH, Dartzeel are joined by the big Boulder (1000, 2100 and 3000 series preamps), Audionet and Constellation Altair 2. And of course, my personal choice coming from 20 years of CJ and Zanden...the Robert Koda K15EX. You will find quite a number of Mephisto owners here.
The quality of vinyl playback is probably more important in my case.