I have a pair of infinity IL-60 front speakers. I noticed that one of the midrange speakers(Bottom one of the three probably 5')is not working. I kept my hand on it and donot feel a thing. The speaker above it, tweeter and the builtin sub are working fine. In fact the smaller spreaker is trying to compensate for the blown speaker. The other speaker works fine. There is no appreciable difference in the sound coming from two speakers though. I bought these speakers used so the warranty is gone. Is there a way to fix or replace. I am not scared to open it up if somebody can give an advise as what to do.