New to club polk and to SDA's. Just bought a pair from ebay for 244.00. When I received them they needed a little work from damage during shipping. Got them working and wow!!! I am hooked on SDA's. I have a pair of Mon 5B's, RTA 15TL's, and a pair of 4a's. The SDA's sound incredible. The interconnect cable I got from Polk works well but the connection in back is loose on both speakers. It is the blade style. Any suggestions?? Also any suggestions on tweeter replacments?