Modest system I've scraped together over the years. 

Currently running the Sonica DAC as a preamp straight to the Thors via balanced connections.  Sound is good, but can be a bit cool to the ears with certain recordings.  Sonica is fed 2TB of hi-res music via a hard drive that is directly plugged into the Sonica USB port.  Easy operation via Sonica App.

Two 13" SVS (I forget model number) subs were added to fill out the lower registers even though the ATCs do reach pretty low (40hz).  Subs fed via unbalanced connections from Sonica.

Looking to add a balanced preamp so I can put the vintage Sytemdek IIX turntable back into play.