replacing aquaplas

[dblaxter]

hi ,
i purchased some replacement cones for 2214's ,the kits from jbl are not available rihgt now ,next time will be august (maybe) of coarse these do not have the aquaplas coating , has anyone here ever tried or know of a siutable replacement , i have a collision repair shop , with digital scales for proper wieghts , water based & organic based coatings , the proper equipment to apply, so before i experimented , i was hopeing that someone has tried to replace already so any info would be great , did some forum searching ,i did not find anything on replacing .
thanks
michael

[Zilch]

That's one I've never seen, either.

I'd weigh the replacement cone assembly and the original, and make up the difference (if any) with latex paint evenly on the back of the the replacements.

I'd also have the JBL cone kits on order in case it didn't work real well....

[edgewound]

You could try Cascade sound dampening spray. I believe its a water based material. It's used to spray on inner body panels to reduce vibration, and isolate road noise from car interiors for auto sound. Worth a try...cost a few buck a can.

And if that doesn't turn out so good....try Zilch's plan with the factory kits


Good luck

Edgewound

[GordonW]

I've actually created a "pseudo-paper-mache" Aquaplas-"substitute" using latex paint, which I mixed up shredded tissue paper (in the last case, plain old double-ply toilet tissue) into. Seemed to work pretty well... a bit more "mottled" in appearance ("wrinkly" might also be a good descriptive adjective), but seemed to mimic the behaviour of the Aquaplas pretty well, in the measurements I took.

Just be sure, if you do this, to take the time to do this LITTLE BY LITTLE, in very thin layers... you have to WAIT for the water to dry out of the coating, before you can get a correct weight measurement. It can be a bit maddening, having to "inch up" on the correct weight, but it's REALLY easy to lose patience and overshoot the correct weight, by slapping on too much at one time...

Regards,
Gordon.

[Robh3606]

Number one problem is you don't know the composition of the Aquaplas. How much mass to add or required thickness. You can't assume there is only one composition of the aquaplas. It may be tweeked depending on the required mass added as well as the thickness required. You don't know if the cone you have now is the correct mass now or how much to add to get the correct mass. What ever you come up with it won't be the same as an original recone kit. Any kind of doctored aftermarket cone is not going to have the same response as the original. You may get close, might sound OK but it won't be the same. You would have to measure the T/S and get response graphs to see what you have and decide if you think it will work where you want to use it. Many of these drivers are designed with specific rolloff characteristics. Not something your likely to get right. Also remember the crossovers are designed with this in mind so using a driver like this in a stock cabinet with a stock network is not likely to work well. These are highly engineered drivers can't just slap anything into them and expect to get the desired response.

Rob

[edgewound]

IMHO...Sometimes when the right parts are not available...and the equipment is personal stuff....it's ok to tinker. It always becomes a learning experience. I learned alot when I was a kid by taking things apart...and was thrilled to show my dad that I put it back together and it still worked...My dad was thrilled to...But he's gone now, and I can't show him in person anymore.

You can sometimes go back and make right if you need to.

Thanks...tinker and learn...we're all still learning.

Edgewound