Current setup:

Micro Seiki DD-40 Grace 704 Tonearm Grace F9e and Grace F9 Ruby OCL stylus in route from soundsmith Radial J33 DI preamp Swan/Hivi M3a powered speakers Drop THX AAA 789 headphone amp Hifiman Arya Stealth

So I’m pretty new to HiFi and want to upgrade my preamp to get the most out of my current setup until I’m able to switch from powered speakers to a passive setup.

After getting advice on a new preamp I’ve landed on Schiit as the brand to go with and this is where I’m confused…

Being new to HiFi, I was under the impression that the Mani and Freya are both Preamps but I’ve seen a few threads where some setups use both of them? What exactly does this achieve? Is in needed?

Also any other upgrades or setup suggestions are welcome!