Hey all. Thought I would chime in with my experience with my new purchase. Am in Australia but bought 4 of the aura pros from parts express. I have back seating that is a 3 seater recliner lounge. I have connected one shaker to each of the outside seats and two to the middle main listening position. They are attached to the recliner seats. I had an old yammy avr so I am using that to power them. Signal is received from splitting off my denon x2000 to the yammy and svs pb 12 plus. After just a couple of weeks I have to say that I am in love with these little babies. As Owen said in the previous post, they are not up too loud so as to overpower and annoy but enough that you get a real kick in heavy bass scenes. A great example was from casino royale when the building in Venice is razed to the ground. It feels like u are right there. Combined with the svs it really gives a full visceral experience. The only time I have found them to be too much was in transformers 4. Soooo much lfe in that movie that the chair constantly shook. Kids loved it but I turned the volume down half way through to the shakers. Great little addition for the minimal dollar outlay in my opinion.