Long time polk owner here (but first time poster).
Still have (but do not currently use) my SDA 1-b's. Also stored away is a box of RM-6600's. (I may put them with my Monitor 10's below to run a 5.1 system in my basement)
My basement 2 channel system consists of Monitor 10 (series II's).
My bedroom system is a pair of RTi6's.
My home theater consists of:
LSi15 fronts
LSiC center
LSi7 rears
and 2 SVS subwoofers for LFE.
Michael