Do I detect an anti tube bias?
I used to hear hiss when I was much younger, and MC was new, all the pre-preamps, as some called them i.e. signal booster by any name, hissed, every one I heard, in all the NYC audio stores I visited. Not for me, pay all that money for noise?
I finally tried my 1st MC in 2019, age 71, no hiss. I thought, damn, they have gotten rid of the hiss! Got a nice SUT, no noise, even near my TT's motor, out to my Vintage MM Phono stage in Mcintosh mx110z tube tuner/preamp, hot damn, no noise.
I have some young eared audio friends, nobody hears any noise.
You must be going by some old memories, or poor designs.

