The Official Bass Shaker, Buttkicker, Tactile Transducer Thread

[middy]

Thank you to everybody who made this thread what it is and to Big Daddy for starting it. I have seen other threads and this one was the easiest to understand and seems like folks here know what they were talking about.

I have decided to get the Clark 239... relevant components of my current setup include:
Marantz AV8801 (has 2 sub outs and allows you to set them independently),
two Emotiva XPA-5 (3 channels unused in 7.1 setup)
SVS PC12+ sub

My questions are:

1.With my current setup, am I correct in saying that all I need to purchase is the clark 239, 4 rubber feet for my couch, extra speaker wire and a level control (even if I can set the volume for the sub in the Marantz)? If so, the gain control should be between the amp and the clark?
2.will the Clark overwork the EMO such that its more advisable to buy the Bash amp?
3.Why are the rubber feet with the metal washer better than rubber feet without?

Thanks.
All answers are greatly appreciated.