Passive preamp to a power amp?


I was reading reviews on the Schiit Saga and people were having a hard time differentiating between active and passive mode. In that case, why not just get the Schiit Sys passive and save 300 dollars? 

I'm sure I'm missing something fundamental here.

p.s. Sorry for the deluge of newbie questions. I hope others have the same questions at some point and benefit. 

stuff_jones
You should shoot Schiit an Email and ask them. I’m sure they will give you the scoop!
Done. Will keep the thread posted. I can’t imagine they’re going to say yes though and potential sell more Sys and fewer Sagas but lets see.
The Saga has a much better volume control design over the Sys. FWIW, in my opinion, a very audible improvement. Worth the $ difference if you want to extract more detail and information out of the system ( this is assuming going passive works for you ). There are many threads about this subject here on the "Gon, and elsewhere. Enjoy ! MrD.
The Saga has more inputs and two outputs. They mention you can use the two inputs on the Sys as outputs (connect in reverse) and leave the volume all the way up. I have a Sys and am going to pick up a Saga as the extra inputs and output would be helpful plus I may like playing around with the tube stage a bit. Hopefully I can find a black one on the used market.
From Schiit:

The saga is much more transparent and causes less potential impedance match issues and includes a remote. sys is really more of a switcher box, while saga is a proper preamp with a resistor stepped attenuator volume control while sys has a simple potentiometer. Saga also has multiple inputs.