I have a pair of heresy speakers I bought in 1978, my first high end audio purchase out of college. loved them for over 40 years. Recently had flooded basement with one speaker sitting on floor in 4 inches of water. woofer cone got wet but not the driver. Unit number is 50B658 inspected by Bob Hamilton. Would like to know what to do to restore functionality to this speaker and suggestions on how to restore both speakers to original specs.