Does anybody have any feedback on Aura Bass Shakers. Smarthome had them for sale at a rediculous price.

I am reconstructing my HT in a dedicated room and thought it would be a good idea to add them under the chairs in addition to my NHT powered sub. I had experienced the Clark Synthesis transducers and was impressed.

How are these connected to the recv'r if I already have a sub? How much power do they need? Amplifier recommendations?

Thanks in advance!