Bookshelf speakers for small room


I have a small room and listen rather closely.  I'm using a Uniti Atom and some older Martin Logan 4s and looking to upgrade the whole system with a great turntable, tube amp and a different DAC.  A local dealer demo'd me on the Harbeth P3 XD's and the vocals came through with crystal clarity- loved the sound!  But he played it loud and I'm playing at very low volumes (kids, wife, small house).  

What are some good bookshelf options for a small room and streamed music (and vinyl) played at lower volumes?   A good tube amp/DAC to match??
labelman
I recently purchased a used pair of Sonus Faber Concerto bookshelf speakers and I'm very happy with them.  I agree, it's always a good idea to listen before buying.  Good luck.  
I think Harbeth is a good choice.  When you mentioned near field, a coaxial speaker also came to mind.  And last, I have the Fritz Carrera BE’s and they sound really good at low volumes.  I have them paired to a Belles Aria and Schiit Gungir.  I do quite a bit of listening late at night at very low volumes and the Carreras sound great. Very well balanced with regards to freq response from top to bottom.  
I’ve heard a ton of speakers and for what you are describing, I’d say Harbeth or Fritz are 2 really good choices.
Oh, and the NAD M33 seems to be well received.  The agon member that I bought my Belles from moved on to a luxman then the nad m33.

I can also recommend Monitor Audio Golds.  I’d have to agree with “Another Bob”.  He’s got a nice little rig too!

Seems like Audio Mirro Tubadour, and Denafrips are 2 companies to look into for dacs.  Maybe check out the Raven tube amps as well.

If you do go tubes, any of the speakers that Fritz builds will work great as the have incredibly benign impedance curves.
Another vote for Fritz speakers.  He makes a compact (7.5" x 13" x 11.5"d) series that sound great - I couldn't be happier!