I owned a pair of SDA SRS for a few years. They had the widest sound stage I'd ever heard. I drove them with a pair of Acurus A-150s. I now have a pair of Hales Rev 3s and am using a Llano 100S amp. The polks also had the ability to be played louder than anything I have ever heard. I do wish I could have heard them with my present electronics.
POLK SDA series
Just curious if anyone has owned or heard these older Polk models......