I am a big fan of Polks and have earlier had the RM6005 series and a few months ago upgraded to the RM6700 series with a PSW303 Sub, I also bought an extra rear speaker to complete the 6.1 setup.
I am thinking of installing Aura Bass Shakers in my setup which I plan to buy from partsexpress.com , I also intend to buy a 100 watt amp from them to drive those. The problem I have is to how to connect the amp to my reciever. I had asked this on the forum earlier too and I was suggested to take an out from the subwoofer cable and use that as an input to the amp. But I have connected the Sub as per Polks recommendation by wiring the front speaker wires to the sub and letting it filter the LFE signals and pass on the rest to the fronts.So theres no subwoofer cable in my setup. Also theres no Out of the sub from where I can take the LFE signal. Please suggest me as to how to connect it.