Help SDA experts. I am the original owner of circa 1984 SDA-CRS's. Up until a recent flood, they have performed perfectly. My sump pump broke and I wound up with a couple of inches of water in the basement theater. The system was on (not playing, but powered on) and the speaker wires and interconnect cable were submersed for a few hours. System was uninstalled floor dried and system reinstalled. Upon power up, speakers output a loud oscillating hum. Immediate power down and troubleshooting of wires, etc ensued. Removal of interconnect cable solved the problem and system operated as normal except for expected loss of output from dimensional driversand SDA effect.
Inspection of interconnect showed some cracks and holes in the insulation, probably from my trying to shove it under the baseboard and the carpet tacks penetrating the insulation. I tried to build a new interconnect using information from this forum, but still have the same problem with the loud hum. I expect this is a crossover problem in one or both of the speakers, eithier due to age or a short due to the flood.
I don't have any type of multimeter or skill in using one, I assume I would have to test the crossovers somehow. Can someone walk me through this? I have zero soldering skills, so rebuilding a complex crossover is probably not something I can do.
To tell the truth, they still sound great, but I know in my mind that they are not performing as well as they should. If it is more work than I am able, I may just sell them and move on to something else.
Any help would be appreciated.