Best Late Night Low Volume Speaker

Quads. IME, I disagree with the Harbeth recommendations.

I use my Merrill single drivers all day long as computer speakers. Great with low level listening. The other advantage of small single driver speakers is there really is a lack of bass to disturb others at night.

There is no such thing as magical late night, low level listening with speakers. All systems have a volume where they really start to shine and it is not at a low volume. Headphones may be what you need or for whoever you are inquiring for.

I see what you mean, Rrog, but you know, if the room is DEAD silent, the level needed for good sound decreases dramatically.
Late at night, when I can hear a single car pass on the main street 3 blocks away, that is when you can hear far into the music. And do so at a level that won't disturb a sleeping person in the next room.......

I think that in generally a speaker that is not laid back and perhaps even forward sound better at low volume. Not to much bass either. If the bass is tipped up or heavy then the highs can sound tipped down and lost at low volume. Also heavy bass tends to wake up neighbors. Mine tend to get angry and have NRA stickers on their car. That combo can ruin a good listening session.

Dealer disclaimer: I am a dealer for Sonist, deHavilland, Esoteric and Kubala-Sosna