Speaker Repair

Last weekend we noticed our stereo speakers were rattling when a loud bass sound was being generated. Taking off the grill cover we saw that the foam ring around the perimeter of the speaker had deteriorated, and was mostly missing. There were crumbs of the foam in the bottom of the grill cover.

I ordered a pair of foam speaker ring repair kits on line and repaired the upper 12" speakers last night. You can see in this photo the upper large speaker has been repaired, but the bottom speaker still has a hole in the foam ring.

Here's a close up photo of the bottom speaker so you can see where part of the foam ring is missing. The foam on the upper speaker was about 90% gone, but the lower speaker is only about 10% gone.

Here you can see I've taken the lower speaker out, but where is the wiring? Where is the voice coil on the back of the speaker? Apparently I was ripped off by Sony when I bought these speakers 25 years ago. They made it look like there were two big woofers in the speaker cabinets when in fact the bottom "woofer" is just a paper cone.