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Car Audio Equipment
Subwoofers
Which coil? Pondering old sub rebuild.
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<blockquote data-quote="Deiimos" data-source="post: 8790237" data-attributes="member: 682903"><p>That's what I seen looking for Kove's, crazy prices, and now don't see any, not that I would pay those prices anyway. Not easy to find a match for one, that's for sure!</p><p></p><p>I picked up a 12” Kove a few years back, only model I could find that looked like it was M series Armageddon, but it’s tiny compared to the Z series, and only a 2" coil. I’ll add a pic of that one below.</p><p></p><p></p><p></p><p>As for separating the surround, as well as spider without damage. This won’t really work for hard brittle style super glue, although, it might help, mainly only a rubbery adhesive, which most factory made subs use. And only works on steel or aluminum baskets. A small mini torch with a fine flame (I have a Power Probe butane soldering kit I use as just a torch with no tips on it). Remove the rubber gasket ring if it has one, and heat the basket under the surround with the flame. You’re not trying to make it glow red, you keep the focused flame moving to heat a section between screw holes to soften the glue, then use a flat head screw driver to slip under the surround while it's hot and gently scrape under it lifting the surround. If it isn’t coming up easy, add a little more heat. Just to make it clear, you're heating the metal frame under the surround, the flame never touches the surround or cone, or spider. You won't burn the surround if you're careful, just the glue in between it and the basket. I’d suggest practicing on an old subwoofer / speaker first that is junk if you have one. You might be able to use a hair dryer, or heat gun, but the heat isn't focused enough and would take forever if even possible (heat gun gets hot enough, but risk burning the cone and surround). I did a bunch of speakers / subs, so you get a feel for it to not burn anything, even did a few cheap coaxials that had debris in the gap <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite17" alt=":LOL:" title="Laugh :LOL:" loading="lazy" data-shortname=":LOL:" />. Same thing for the spider, although sometimes this may not be easily possible depending on basket design (remove rubber magnet boot if close to the spider landing, and don’t get the magnet slugs hot). I made a video on this process 10 years back demonstrating on a different sub, but video has been gone for a long time, suppose I could do another at some point. It won't work on everything, but I've been able to get quite a few apart like this over the years.</p><p></p><p></p><p>Here’s the Kove 12 I have next to the Z 15, removed the soft parts on that one like this as well, most of the surround glue came right up with the surround. This one had a broken basket I had to rig up. Worked good until the motor fell off in the box from old dried up glue. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite18" alt=":ROFLMAO:" title="ROFL :ROFLMAO:" loading="lazy" data-shortname=":ROFLMAO:" /> I've yet to try and glue the top plate back on.</p><p></p><p>[ATTACH=full]38428[/ATTACH]</p><p></p><p></p><p>[ATTACH=full]38431[/ATTACH]</p><p></p><p>[ATTACH=full]38433[/ATTACH]</p><p>[ATTACH=full]38434[/ATTACH]</p></blockquote><p></p>
[QUOTE="Deiimos, post: 8790237, member: 682903"] That's what I seen looking for Kove's, crazy prices, and now don't see any, not that I would pay those prices anyway. Not easy to find a match for one, that's for sure! I picked up a 12” Kove a few years back, only model I could find that looked like it was M series Armageddon, but it’s tiny compared to the Z series, and only a 2" coil. I’ll add a pic of that one below. As for separating the surround, as well as spider without damage. This won’t really work for hard brittle style super glue, although, it might help, mainly only a rubbery adhesive, which most factory made subs use. And only works on steel or aluminum baskets. A small mini torch with a fine flame (I have a Power Probe butane soldering kit I use as just a torch with no tips on it). Remove the rubber gasket ring if it has one, and heat the basket under the surround with the flame. You’re not trying to make it glow red, you keep the focused flame moving to heat a section between screw holes to soften the glue, then use a flat head screw driver to slip under the surround while it's hot and gently scrape under it lifting the surround. If it isn’t coming up easy, add a little more heat. Just to make it clear, you're heating the metal frame under the surround, the flame never touches the surround or cone, or spider. You won't burn the surround if you're careful, just the glue in between it and the basket. I’d suggest practicing on an old subwoofer / speaker first that is junk if you have one. You might be able to use a hair dryer, or heat gun, but the heat isn't focused enough and would take forever if even possible (heat gun gets hot enough, but risk burning the cone and surround). I did a bunch of speakers / subs, so you get a feel for it to not burn anything, even did a few cheap coaxials that had debris in the gap :LOL:. Same thing for the spider, although sometimes this may not be easily possible depending on basket design (remove rubber magnet boot if close to the spider landing, and don’t get the magnet slugs hot). I made a video on this process 10 years back demonstrating on a different sub, but video has been gone for a long time, suppose I could do another at some point. It won't work on everything, but I've been able to get quite a few apart like this over the years. Here’s the Kove 12 I have next to the Z 15, removed the soft parts on that one like this as well, most of the surround glue came right up with the surround. This one had a broken basket I had to rig up. Worked good until the motor fell off in the box from old dried up glue. :ROFLMAO: I've yet to try and glue the top plate back on. [ATTACH type="full" alt="IMG_1590.JPG"]38428[/ATTACH] [ATTACH type="full" alt="IMG_1587.JPG"]38431[/ATTACH] [ATTACH type="full" alt="IMG_1553.JPG"]38433[/ATTACH] [ATTACH type="full" alt="IMG_1589.JPG"]38434[/ATTACH] [/QUOTE]
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Which coil? Pondering old sub rebuild.
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