+1ghdprentice!
I used to have what I thought was a killer 5 channel surround system with also great 2 channel stereo. Fortunately my processor broke and led me to exploring 2 channel only. So much better AND it images so well it is (for me) perfect for the video we watch.
Also totally agree the pre amp adds a lot to a two channel set up. I am not a Macintosh fan and find them warm and dull sounding compared to my Audionet stuff and much other stuff as well. The Tambaqui I do have and it is amazing, but do not use its volume control as it strips bits and you lose resolution. I have tried several nice DACs without a Preamp and always found it better with a Preamp.
For me, if you want an integrated, get one without a DAC so you can find your way independently. Integrated + Streamer +DAC or Streamer + DAC + Preamp + amp(s).