psyprof1,

To be honest with you, I haven't put the 1.6QR's into service in my system yet. I purchased them used where I was able to audition them, but they've been stored since. I'm actually going to set them up tonight now that I have the 990. I've been using the sub with my SMGc's. I never turn it up beyond 3, so it just fills in the bottom end.

I listen mostly to jazz and classic rock, and I suspect the 1.6QR's will be better on their own when it comes to critical listening. I'll let you know once I've had a chance to listen to them for awhile. Not sure how things will compare with classical music.

The Magnepan link I provided has a comma attached. Those interested, try this one:
http://www.magnepan.com/