Integrated amp suggestions.

I Would listen to Audionet Humboldt

Vitus are a Danish high-end company who make three fabulous integrated amps. I have demoed all three and own two of them and all sound wonderful. Their latest, the SIA-030, has received numerous awards in Asia and Europe recently. Class A to 30W and AB to 200W, it is an extraordinary amp. The Vitus ’sound’ is  neutral although with a  slightly warm, analogue sound. Not the velvety smoothness of a Luxman, and more precise than a McIntosh, but not the dry Hi-Fi sound of a D’Agostino. Think a more valve sound In the mids and top end but with rigid tight and deep bass.
I demoed Sonas Faber speakers with the Vitus SIA-025 and the combination was wonderful, especially with Classical music where the instruments were precisely located in 3 dimensional space and the sound was almost ’live’.

@erik_squires

How do the Luxman and Ayre house sounds differ from each other? I am interested in both brands but have not had the opportunity to listen to either. How does a brand like Simaudio compare to both?

Ayre has a certain darkness, like it pulls noise out of the room.  It's kind of a funny effect.  Very smooth, touch warm in the sense of Parasound.

Luxman is closer to D'Agostino.  Extended on both ends, liquid midrange.

Have never heard Simaudio so I can't help you. 

The Luxman/D'Agostino/Ayre triad represent amps I'd be happy with for the rest of my life.

There's a great selection of integrated amps these days.  

McIntosh has both solid state and tube - if you are willing to consider them.  Not sure about your CD transport but most likely one remote could operate them both if that's important to you.

My experience with Simaudio is related to their DAC - I have the 280D.  I'd consider their other components and my McIntosh C2600 and MC 301 are relatively new and I'm extremely happy with them at this time.

If you like tubes, I've been impressed with a Rogue demo.  The store I frequent decided not to renew the AR contract because of the performance and customer reaction to Rogue.

Good luck and happy listening.