First things first--have you even been to this auditorium (left)?? I don't have the best ear for acoustics--I notice when they are bad, but above a certain level in a modern concert space I can't really distinguish the good from the great. That said, the acoustics in this auditorium in the main NAS building off the mall are freaking phenomenal. There's a detailed explanation of the technique used here. We were about 100 feet back from the stage, and the sound of the string instruments was absurdly present and warm, as though you were sitting next to the instrument, and yet it was coming from all around you. Really, the acoustics were entertainment enough--it's honestly the best room I've ever been in for chamber music. Unfortunately, looks like they only do three public shows a year.
Anyhow, I won't dwell on the program too much. The interesting Brucker quartet on the program, only discovered in 1949 from the program notes, had some really lovely moments despite my general (though largely unjustified) indifference to Bruckner. The Schumann Op. 41 No. 1 which made up the second half of the program was very beautiful, particularly the adagio with its aching viola line played movingly by the Quartet's newest member. The encore was an invigorating rendition of the last movement of Shostakovich's 1st string quartet, which kind of left one hungry for what the group can do with 20th century fare.
PS, here's that priddy Adagio from the Schumann: