ButtKicker LFE Kit (?)
 

For testing purposes, I set the volume control on the amplifier to its lowest setting where I was left with no vibration from the LFE at all. When I cranked it all the way though there was a constant vibration to the couch that was a little annoying. So, I would not suggest nor does the manual suggest doing this. From here I tested regular television viewing to include watching a Nascar race. I found the experience enjoyable, but you can only take so much rattling while you’re trying to relax and watch the race. Using the unit during a Nascar race was neat, but for regular viewing I found myself turning it off.