I was very fortunate to be able to fix my damaged $170 Scumback speaker for about $23. So how did I damage it? Well, while I had the amp chassis on the operating table, the speakers in the combo cab were still connected to the amp with a 10' extension speaker cable. As I was moving the cab, the extension cable got stuck underneath another amp, and proceeded to rip off the speaker's wire terminals completely off the frame and speaker's lead wires completely off the voice coil. The proper and professional method to fix this damaged speaker is to recone it. Proper recone kits that will work for this speaker are about $50 to $90. Reconing by a pro is about $80 to $110 plus the cost of shipping if needed. But I decided to first try to repair the speaker without a full reconing job.
Injured speaker:
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With a hot air gun, I heated up the perimeter of the dust cap till the adhesive got a little soft and used an exacto knife to separate the dust cap from the cone:
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Instead of heating up the adhesive that is hiding the two voice coil wires, I decided to use acetone to soften up the glue and carefully pry up the wires. Not much to work with, and those voice coil wires sure are tiny:
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The new and crusty old parts:
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Tack on a bit of solder on the new speaker leads:
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The plan is to tack on to the tiny bit of solder, the leading edge of the voice coil wire close to the end of the speaker lead wire. Then roll the speaker lead as the voice coil wire wraps itself around the speaker lead wire:
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I was able to get about three complete revolutions of the voice coil wire to wrap around the speaker lead wire. At this point, I soldered the rest of the wrap-around voice coil wire to the speaker lead wire. The acetone discolored the cone:
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With both speaker leads soldered to the voice coil leads, I tested and made sure the speaker is working at this point of the repair job:
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TO BE CONTINUED...
w/external battery pack damn
