Small-ish Speakers That Come Alive At Low Volume

x3 Rega RS1

wow, lots of great suggestions here... thanks, all. i've got some research to do! i should have mentioned - budget is up to $2500 used.

Disclaimer
I am a representative of a speaker line called "Role Audio"
One of the best small effective loudspeakers in the World. I highly recommend Role Audio FTL monitors. You will not be dissapointed, excellent in low vol.level listening with detail and the price is great - email for more info.

If you can find the old Red Rose Ribbon Monitor (version where the ribbon tweeter extends upward above the front baffle and cabinet), it's a good choice. Small, with great dynamics and real bass punch, although true bass extension is (understandably) limited and they're not entirely neutral in tonal balance. Overall, very convincing for a shoebox sized speaker.

Marty

I also love the Triangle speakers for top to bottom coherence and low level listening. I have the Celius ES in the livingroom and the Comete ES in the bedroom. The Cometes sound great at any sound level but are wonderful speakers to fall asleep listening to at low volumes without worrying about hearing loss. I have not heard the 3A De Capos.
John