Yeah, so I'm repairing two vintage JA2501A woofers on cloth surrounds, possible shifted magnet on one woofer and weird condensation between cask basket, magnets, plates and poles on both woofers.
If I can't reuse the original dust caps what type of caps do you guys recommend? To make it look as close to original as possible?
It kinda looks like some flat felt cap or a foam - not really sure. If you push in cone a lil bit the dust cap is lifted by the air flow a bit. Its my first time seeing this type of dust cap.
Also do you guys have any link's to shops with fairly large stocks of various spider parts for woofers? I may need to search for similar spider as an original part - depends on how repairs will go, I guess.
My tech guy said that it's essential to unglue the original spider to properly demagnetize, open and clean, reglue, center magnets and properly remagnetize the magnets. Will see how that goes in a while I guess - would be cool if he doesn't damage it. The height on original spider makes me worried if I can match it with something else.
Also check out this solder job 👌
It looks massive.
If I can't reuse the original dust caps what type of caps do you guys recommend? To make it look as close to original as possible?
It kinda looks like some flat felt cap or a foam - not really sure. If you push in cone a lil bit the dust cap is lifted by the air flow a bit. Its my first time seeing this type of dust cap.
Also do you guys have any link's to shops with fairly large stocks of various spider parts for woofers? I may need to search for similar spider as an original part - depends on how repairs will go, I guess.
My tech guy said that it's essential to unglue the original spider to properly demagnetize, open and clean, reglue, center magnets and properly remagnetize the magnets. Will see how that goes in a while I guess - would be cool if he doesn't damage it. The height on original spider makes me worried if I can match it with something else.
Also check out this solder job 👌
It looks massive.
Last edited:
Having extensive experience in the 'art' of getting the most out of magnets/motors, please be smart and heed his advice. As for DCs, use what makes the kind of extended HF response you want since it all emanates from it above ~ the VC's diameter, so if a 3", then ~13543/pi/3 = ~1437 Hz.