Passive preamp

As you have more than one source and are forced to use a preamp, you need something better than that piece of Schiit preamp. With that Schiit in front of Bricasti dac you pretty much wasted your money. You’ll know what I mean when you run M3 direct. 

How does the Freya sound when using in different modes? Passive, buffered , tubes. I use mine in a second system 90+% of the time in passive mode. I actually went as far as selling a Freya+ a while back as a substitute was found and said to be superior. Used the superior unit for a couple of months, then bought another Freya+. Sold the superior unit as it was inferior to the Freya+. The Freya+ is tough to beat unless one spends sizable piles of cash. Your mileage may vary. 

One of the finest passive preamps that I've found is Khozmo Acoustics. The shunt-zfoil volume control is superb. Only limitation is 3 inputs only (which is one more than I use, so not a limitation in my case).

Very reasonably priced as well!

Ive owned quite a lot of kit over the decades. I really loved the Khozmo dual mono preamp. Sadly, I had to sell it to fund another purchase

I run systems with both active and passive preamps. What works best depends on synergy with the amp, as other posters have emphasized. Categorical statements about which is better don’t really apply. If your amp is friendly enough to passives (and as others have pointed out, a search of these pages would educate you on how to determine this), then you have choices of topology. The three main ones are resistor, transformer, and autoformer. I’ve played with excellent examples of all three and the autoformer-based passive from Bent Audio is my personal favorite. YMMV. The only way to know is dig in, research, and experiment. Bent is no longer in business, btw, but used ones do come up.