Yes, I did run a search, but I'm really hoping that one of you can provide some additional information as to mounting these to a couch, and also where I can find the low-pass filter (50hz)? I cannot find these online anywhere. Anyways, I understand that I'm supposed to mount the shakers to a piece of mdf that is somehow attached to the frame of the couch........can anyone provide some pics of successful attempts of this project? Also, does one get better results from mounting them horizontally or vertically? And any particular area in the couch that gets more response? Are any additional connections needed? I will be using an old DPL receiver that is Y-ed from the LFE on my existing receiver, and will be daisy-chaining 4 shakers to the couch & loveseat. Any tips/tricks would be greatly appreciated. Thanks in advance for all of the help! Derek.