Why have one if you can have two?

In an effort to reduce equipment in the new house I’m building, and reduce clutter, I purchased the Luxman 505uxII for my Klipsch Fortr IVs. Turned out to be a marvelous pairing. The music is just alive, dimensional, and effortless. 
 

The thing is, I like the Luxman so much I figured I wanted to pair it with the Thiel CS2.4’s I have.  But the current requirements for those speakers require a bit more umph!  So now I also have the 507z.  Currently my Thiels are boxed up ready for the move in about two weeks or so, but I’m breaking in the Z on the Forte’s in the mean time. 
 

I noticed it took a couple weeks for the 505 to really shine so I’m expecting the same on the 507! But right out the box it equals the 505.  Not a huge difference between the 505 and 507 yet, but I also suspect that the Fortes have generally plateaued on amplification.  The 507 is a bit smoother, if not just noticeably so, and there seems a just a bit more spaciousness as well. Again, right out of the box.
 

I will be intrigued to see how this amp breaks in, and how much further the envelope of sound can be increased from the already capable 505.