If you can afford it, get the Clark Synthesis Tactiles. I have had two of them in my couch for about Three Months now (Amplified by a Carvin Receiver). They sound amazing! I auditioned the Aura Bass Shakers right along with the Clark's and difference was night and day. You could'nt even hear any dynamics out of the Aura's. The music was gone. It just sounded like a really powerful vibrator. Do yourself a favor and save up for the Clarks.