I recently moved into a home with existing, in-wall subwoofers in a media room. They are the Sonance Cinema Two Subwoofer System and I'm at a loss on how these need to be properly connected to a standard home theater receiver. It is my understanding that I will need a separate amp to power these, which will then connect to the receiver. The previous owner did not leave the accompanying Sonamp Cinema 2120 unit or documentation.
Long story short, how do I connect these subs? Do I need a sub amplifier? If so, can someone recommend a good one under $200? I'm not looking to break the bank, just to get everything up and running. From there, how do you recommend connecting all of these units together?