Love the Heresey's mounted up top. I have all Klipsch, as well.
{ ...a Pair KHorns with LaScala center, as you do, but mine are all Black. }
Also, have a Klipsch Home Theater system with the 4 RF7ii's and the RF64ii center.
You can't beat the LaScala for a center, though.
Thinking of moving the LaScala to my center in the home theater, and just use the RF64ii for the Back Surround.
My KHorn setup does NOT need the LaScala for 2-channel listening. The 'phantom center' is always there with the Heritage KHorns !
*I am using the Carver ZR1600's for powering my Theater setup, ...and have some tubes from Craig Otsby, from the Klipsch Forum, for my 2channel setup !
~Rock on ...