When connecting my new sub I noticed the connection wasn't as tight a fit like my previous sub. I'm not saying the jack is falling off the post. The best way I can describe it is that I can pull the jack off the post or slide it on very easily. I've had the sub for about two weeks and haven't noticed any problems while playing movies, but I pushed the sub back a little while it was on(nothing playing) and it made a really loud sound. I'm sure it was due to the loose connection. Should I be dropping cash on a new sub cable to get that tight connection?