It really depends on how many shakers you use as to how you wire them. You will need to try to keep the impedance within the safe range of whatever amp you use. I am running 8 shakers in my system in a series/parrallel config and have had no trouble. So that is four shakers per channel. The...
The mono block will work fine but depending on what the bass management is like on your reciever you may find the cutoff freq for the bass too high. Most recievers route all below 100 hz to the sub and some are @ 80 but either way that will be too high to get the most out of the shakers.
Keith To build on what I said earlier almost any amp will do but... You will need to find a method of low pass filtering for the shakers. Without a low pass filter you will find your butt shaking to peoples voices etc which completely destroys any benefit from the shaker. I am using an X-30...
I would recommend saving some money and using just about any old amp you have laying around. I am using an old Kenwood Pro-Logic reciever I had around that I absolutely can not stand to listern to for movies or music but it serves the bass shakers just fine. Steve