I have spoken to a Gordon at Schiit, and told me it will work fine with my passive unit and have plenty of available power and grunt for my 104 db Lascalas. Supposedly, within it's power range, better in all areas over the Vidar, except maybe the nether bass region.
The new Schiit Aegir Amplifier now shipping
Looks like mono configuration will not work with rca-XLR cables. Requires a true balanced connection. 20 watts a little low (for me anyway) for SE connection. I'm looking forward to reviews on this one
https://www.schiit.com/products/aegir
https://www.schiit.com/products/aegir