So I posted about my 4411's with two rotting foams. I also have a pair of 4311B's. They look to be fine right now, and I understand that these use cloth instead of foam to bridge between the cone and the gasket? What does that mean? Are they less likely to rot? If they are in good shape now, should I fire them up and leave them be?

While we're on the subject, what the difference between the 4411 and 4311b? I read that 4311b is near field monitor while 4411 is more for stereo? In a 20 x 20 room which is going to provide the better sound?

Love seeing a forum with this many people dedicated to JBL's