Audio Advisor is clearing out these terrific floorstanders . Originally $450 pr. now $199 free shipping . These babies weigh 34 lbs each. I just ordered a pair for my bedroom . I have RTS-3's in my office and R-515's ,THC-2 center channel and THR-BP1 bipolar surrounds in my living room. Sound Dynamics is a division of Audio Products International. The same Canadian company that makes Energy, Mirage and Athena speakers . They make their speakers totally in house from cabinets to drivers to crossovers Etc. I heard the rumour is the Sound Dynamics brand is to be phased out and replaced by the newer Athena line . Too bad if true, they have made some terrific value speakers over the years.