Subwoofer failure

I use tuning phase plugs... They come loose eventually.. I use a quick JB Weld for the center and an o-ring (cut a grove in the backside of the phase plug) and super glue gel on the outside of the o-ring. So the super glue will set in about 4-5 min and the JB weld in about 15 min. The two don't mix and last for at least 5 years up to, not coming loose again...

When and if driver upgrades or replacement are needed, you have a template or a good whack with an impact mallet will remove them, for the new drivers...

A lot of them are rebuildable, just have to take your time, stamped baskets... there are a lot of tricks.. Terminate the baskets edges with sandpaper and silicone, deadening matt for the baskets, Can treat the cone material, and experiment with surrounds, BR, Silicone, Foam, rag, pleated, Spider replacement and if you really want to tinker... Change the magnetic flux (strength) of the magnet...

Cast baskets some are nuts and bolts... so even the voice coil/cone can be replaced.. I've done quit a few for the kids through the years... OB subs in cars... BOOM... LOL

Regards

@oldhvymec, these are cast baskets. The problem is that I have 4 subs and they have to match. What I do to one I have to do with them all. Then the problem is maintaining the same parameters.

I did the car thing when I was younger and car system s-cked. Now car systems are way better and I can't bring myself to rummage around in a $200,000 car. Around here the kids get used Acura's, slam them and stuff 4 subwoofers in there so you can here the BOOM BOOM two blocks away. Too much testosterone. 

LOL, I'm with you.. it is tough to get an automotive unit audiofile "certified".. Is there such a thing? I say that tongue in cheek. :-)

I would suggest that other than for your own personal "knowing", the (bass) section of most systems (250hz and below), you or I could hear good, better, best, BUT if I had a curtain between you and the production side of the sound... I could set up with 2-6 different bass bins, and we, (that's you and me), could tell the difference in sound quality, but not because things were the same, but because they were actually different... 

Mix and match may well work BETTER, when it comes to "the whole package"  so to speak...

My EX: I use "bass bins", 250 hz and down, AND
Subs, 60-80 hz and down.. The bins are 60-300 (max), the subs are 100hz and down.... (the numbers are close), not spot on...

I have a different way of doing bass than some, BUT it has yet NOT to impress the pickiest of the audiofile community.  At the same time, bounce anyone right on out into the street, with their ears bleeding..
Have to be careful "in the chamber".

I use the 60-300 columns and they are directional. Because of that, the subs, not the bass bins are VERY easy to integrate. The result is the boom is in the room not the whole house. WHY?The subs are OB direct servo columns... It is a spin on DBA, but I KNOW it's better for me..

A huge reduction in room treatment also...and still a pretty large sweet spot... I can set up and dial in, in a week..  it takes years for some folks..

Regards...