What Integrated Amp do You use

In the days of my youth, I made my girlfriend buy a McIntosh MA6100 for her apartment. 
30+ years later, and now hitched to her (Chief and Brains Of The Outfit,) that Mac is still in my second system, still pleasing me with its sound and classically handsome looks. 

Rogue Sphinx.

Linear Tube Audio Ultralinear. 
For my sensitive 95db Spatial Audio M3 Triode Master open baffle, they won’t need a lot of watts but the pairing is awesome. Compared to my previous Primaluna Dialogue Premium Integrated, the LTA sounds like it had a gigantic heavy curtain lifted off the sound. More and higher quality bass, textural midrange, and crystal clear and open treble. For smaller rooms, it’ll handle speakers down to 85 db sensitivity.  The 20 watts it puts out are something else. Highly recommended to trial it at home. 

I use an accuphase integrated because of the clarity of sound it provides on a good vintage speaker especially an electrovoice.