How do you add remote control to a preamp, here's how.

I don't think the Schiit Saga passive can be beat for transparency...looks like they ditched the tube with the latest model.

With the relay stepped ladder volume control, you get perfect channel matching and no noise or distortion. It's as transparent as an RCA cable :-)  

The points above are well taken to get a better passive but I wanted to try this route to make sure this will basically work for me and with the excellent recommendations above I'm going to look into a better passive. But I will need at least three inputs and of course a remote.

Another feature of the Schiit Kara is the output impedance is the same in active and passive modes. 

I don't like the idea of multiple preamps.  You can only harm the sound here. If you have to have remote volume control, I suggest it is better to get a preamp that has it.  

I have a Luminous Audio axiom. Don't use it a lot but Tim Stinson's little boxes are great examples of "less is more".  Available with a remote. However, the base unit like mine is pretty much invisible when it's in the signal path. When you pop the cover, there's nothing there and Tim claims it totally different from 90% of the passives on the market. Something about "volume is adjusted by shunting your amp's input to ground via our volume control to ground and allowing the signal to flow into the amp by a "valve like" circuit". I got no clue what that means but it does work nice.