I just got my subdude HT this afternoon and I shocked that for $63.00 this thing actually works. I used the opening scene in the movie James Bond Spectre and normally the glasses in my kitchen cabinet rattle and the pots and pans I have hung on the ceiling in the kitchen ring like Christmas bells, nothing nada. I am taking about the scene with March on the day of the dead and then the building blowing up and falling down. I then replayed the scene and went into my bedroom and the closet door typically rattles, with subdude HT it did not. I live in a 1300sqft condo with all cemented hardwood floors a cement slab on the 4th of the building. I also have high quality hardwood as well from mirage flooring typically not put in a condo due it’s price point. MY wife was even impressed with results of the subdude and she typically could care less about this stuff. All I can say great product at a great price.