Thiel 3.6 to Eggleston Andras II

Yes, the Dunlavy's are "OB", but the parts are readibly available. They are bigger, have sealed boxes, and are more sensitive/efficent. They do share many design attributes with the Thiels.

Thanks guys, interesting Unsound. Bill, you know my system what would you change? More music is easy, but I already have 2 dozen albums I haven't washed yet because I don't enjoy that! Thanks...

Since your musical interests are mostly R&R it is difficult to recommend (or not)
speakers that are designed to be accurate in timbre on acoustic piano, strings,
and other acoustic instruments. the Andra's CAN be played very loud however-
each cabinet has TWO woofers and TWO midrange drivers- so dynamics is also assured. the Thiels and Egglestons are definitely different sounding speakers.
the only other thing that comes to mind are the incredible "reference" CS5i's that Thiel came out with that was a VERY powerful speaker- not everyone's taste but highly respected.

Thanks French fries, I am definitely a rocker, mostly new and classic - no metal.

Those CS5i's are a great recommendation, and would be my first choice in your circumstances. I would think it safe to guess that you've tailored the rest of your system around the Thiel house sound. IMHO, changing speakers, more so than other components, can cause a domino effect of system changes. Be warned the CS5i's are especially demanding of amplification, especially in a room as large as yours. That room, while really conducive to Thiels, might be stretching the dynamic limitations of the 3.6's. That won't be the case with the CS5i's (perhaps Thiels all time best product) with the right amplification.