I am a new owner of three Sierra 1s and am building a system in my family room. A wall cabinet will house all electrical components, the three front speakers using Q Plugs, and a Rythmik sealed L12 in a lower cabinet firing through a door with grill cloth panel. This cabinet space is bottomless so the sub sits on the tile floor. I am concerned about vibrations from the sub through the cabinet affecting the Sierras and everything else.

Has anybody noticed an audible benefit by using Isonode vibration damping feet or similar pads under main speakers in a cabinet with a closely associated sub? I've heard people say pads cut bass output from floor standers, which these are not. Some think their speakers sound better with pads. It seems like isolating the Sierras from sub vibrations through the cabinet might make the tweeters happier. And isolating the Sierras might mean less vibration to the receiver and BR player, which will get Isonodes too.