FYI this will be my first real speaker repair attempt. I am looking for some guidance on testing and repairing some Kappa 6.1 Series II’s that I just acquired. I picked them up off of Craigslist for $50. As one would expect from speakers at that price, the surrounds are shot, the grills aren’t great, the cabinets are a bit rough and one of the binding posts is broken off. I have been doing some reading and I feel I have a grasp on most of the repairs but there are two main issues/questions I have. First: I haven’t tested the speakers and I want to know if it is safe to do so. My concerns revolve around the bad woofer surrounds and my power source. - The surrounds are completely gone on the woofers. Is it safe to play them at low levels to test them, or should I get new foam on them first? - I understand that Infinity’s like these take real power to run properly and they are low ohm speakers. At present I only have a pioneer sx-750 (50 wpc) and a Sony AVR (100 wpc), both only rated for 8 ohms. Would it be safe to test these speakers at low levels using either reciever? Second: One binding post has broken. It snapped off where the hole was drilled perpendicular to the post. I have done a brief search and haven’t found a replacement crossover. Do I just keep looking until I find one or can this be repaired? As I mentioned at the beginning this will be the first time I have done any work on a set of speakers so any guidance you all can provide is appreciated. Thanks in advance!