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I recently acquired a Yamaha/Eminence JAY6130 15" driver in need of a recone. This is a fairly inexpensive driver typically used in 2-way systems, and a good candidate for me to experiment with a DIY recone (no big loss if I screw it up). "Pre-assembled" recone kits are available for about $50 with shipping.
This driver has a cast basket and what looks like a 2" coil. It looks a lot like an Eminence Delta Pro 15, and in fact the guy I got it from told me that is what it is, though the part number says otherwise.
My question is: What Eminence recone kits will work in this basket, or said another way, which model Eminence drivers can I turn this into depending on my recone kit choice? I have a couple different ways I could go with this driver, but I do not actually need a spare JAY6130 right now. Any suggestions?
Recone it yourself
This drops right in
Instructions included, and also on Youtube
OK, the kit should be on the way so I went ahead and started. I have one hour in it so far. The "trick" if you will is to scrape while the acetone is still in a liquid state. Once it looks dry the glue has turned hard again.
This reminds me a lot of automotive projects. A good half of the time is spent cleaning up the parts that will be re-used, and you have to do a good job or the repair will fail.
If I had to do a lot of re-cones all the time I would invest in a dremel for sure
I re-coned some RCF 18's and it went very well
Not a real big learning curve actually
Two most important things.
Make sure the gap is absolutely clean!
Make sure you have that sucker shimmed dead center before you glue the web down
Thanks for the encouragement! I had reached the same conclusion and ordered one of those this morning.
I also heard back from Eminence on the topic of what other cones might be installed in the basket of the JAY6130. The answer was that there are no other cone kits that can be used in this model. Apparently, even though the basket looks just like the Delta Pro basket, the gap is smaller and the Delta Pro coil will not fit. Note also that the kit you linked to is an aftermarket kit as Eminence does not offer one. Fortunately reconekits.com does offer an inexpensive alternative.
Hopefully this will work out great and this puppy will be back "on the road" in a week or so.
I'm going to be blunt, since I'm running out of time.
There are no good options for re-coning.
Replace the driver.
Thanks for your comments. Are there any bad alternatives? Are there any alternatives at all besides the stock replacement kit?
All due respect, but you have no idea what I might want to do with this driver. If you are telling me that it is not capable of high power output I already know that. If you are telling me it is not capable of reasonably good quality output even at moderate levels I appreciate the input, as I had assumed it is. (It is a $100 driver after all, but $100 drivers have their uses).
I'll just say that the recone jobs I've seen/heard others use tended to not last very well - rubbing, coming unglued, that sort of thing. A couple years ago, I put new neoprene surrounds on a pair of Dynaudio 8" that had deteriorated foam surrounds, mostly because I couldn't bring myself to throw out the drivers and replace them - they're expensive drivers. I'm tellin' ya what, that was a royal pain in the butt, between cleaning the basket rim, getting the new surrounds perfectly centered, etc. It was a two day ordeal.
Fortunately, I was meticulous, used the proper type of glue for polypropylene/neoprene to metal, etc., etc.
I'm just sayin'.
Ah. OK, I follow you.
I recognize there could be a pretty large investment in time and aggravation considering the payback, especially on this driver which could be easily replaced. Other better speakers can be quite expensive to replace though, so I am using this speaker as an experiment to see if I can develop the skills needed for other speakers. I've personally performed half a dozen re-foam jobs so I have some idea what I'm getting into. And working on speakers is a more productive evening activity than watching TV, even if I'm only "earning" about $5/hr. That assumes of course I don't botch the whole thing.
OK, the pre-assembled cone kit came in and I installed it Tuesday evening. Not difficult at all. After a dry fit test I applied the adhesive, dropped in the kit and installed the shim. Nothing to it. The glue is dry now and it seems to work perfectly, though not yet tested at the power level it would see in production. No reason to think this was not completely successful. As I mentioned before, the effort to clean off the old parts and adhesive was much greater than anything else.
Have you measured the new system and compared it to your measurements of the old system?
How does it compare?
No, I have not measured. It was blown when I got it so I have no baseline. I could do a WT3 sweep if that would be helpful to anybody out there.
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