Thanks for you help and input. I am using two pair of large advents, but would like to switch to a single pair. (By the way, one pair is of original vintage and the other is of nla vintage. They seem to work pretty well together. I think I prefer the older speakers to the newer versions, but on balance, either pair sound pretty good.)
I believe the baffle loss you have so aptly described is one of the major gains derived from using these speakers in pairs; it doubles the baffle area. And the smoothing of the midrange is described in the absolute sound dual advent test.
I have utility models and have been watching for a pair of the prettier veneers. My thinking is that a single pair with the compensation module should be just the trick.
I am using a very basic NAD 320 integrated amp which is more than adequate given the modest size of our living room. I must say that the speakers make the music very enjoyable.
Your thinking makes a lot of sense, people do seem to like
the BSC even with stacked Advents but I would agree that
singles probably need it more. Seems you should be next
for the loaner if you'd like to try it first. Feel free to PM your
mailing address to me if you're interested.