Thanks for the reply, yes the surrounds were in need of a replacement, but on further inspection I realized that the spiders were worn out and the woofers were bottoming out with out pushing them hard at all. I brought them to a speaker repair shop which confirmed they need new spiders and foam surrounds. Also from the woofers bottoming out the coils could be damaged as well. I just bought these speakers second hand with the intentions of rebuilding them.
