Recommendations for speakers that sound great at lower volume levels.


I have a pair of Harbeth SHL5 Plus and they sound wonderful when I crank them up. But at moderate to low volume levels they sound disappointingly flat and unengaging - instruments are less palpable, bass has less bloom, and soundstage has less air and dimensionality. I drive my speakers with a tube integrated - a Line Magnetic 845 rated at 26 watts of power. My Harbeths are rated at 86db. Would a higher sensitivity speaker be helpful? Or how about a good quality small shoebox sized pair of speakers coupled with a subwoofer? Or not. What speakers are going to deliver music you can feel at low volume levels? What say all you wisened audiophiles?
128x128neptune123
Caintuck Open Baffle Lii 15 in coax. They are delicious and under a grand. Randy is the best!
As mentioned before, high efficiency speakers tend to keep a better tonal balance at lower volume levels (around 45~50  dBA  SPL). In my case, a friend who was visiting mentioned that the Tonian 12.1s I had installed in my living room sounded good at a very low levels. They are about 97db/W/m.
As mentioned before, high efficiency speakers tend to keep a better tonal balance at lower volume levels (around 45~50  dBA  SPL). 


Must be different for planar speakers, my apogee duetta 2's sound great at low SPL's. 
Devore Orangutan o/96 powered with 8 watts tubes are perfect for very low level listening. I tend to agree that high efficiency speakers is the way to reach your goal.