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    Real estate is at a premium both on the crossover...

    Real estate is at a premium both on the crossover board and inside the cabinet. But it all fit.
    I also cleaned up any corrosion on the connectors, added dielectric grease to prevent future corrosion...
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    I realize that the whole "upgrading crossover...

    I realize that the whole "upgrading crossover capacitors" thing can be viewed as a bit of a B.S. / snake oil type topic, and to the JBL purists on this site, might be seen as sort of sacrilegious to...
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    If I were to replace the 4uF mylar in the tweeter...

    If I were to replace the 4uF mylar in the tweeter circuit, I would most likely go with something more simple and long lasting it think. Just a decent quality film cap.
    The best I can do locally;...
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    Sorry Grumpy but that went right over my head....

    Sorry Grumpy but that went right over my head. You'll have to dumb that down a tad.
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    All I have in the way of measurement equipment is...

    All I have in the way of measurement equipment is a Fluke 89 IV multi meter. So I can't measure ESR. And yes, the blue cap is the woofer bypass cap. Being in Canada, the closest I can get to what Mr....
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    The photo shows a before and after comparison....

    The photo shows a before and after comparison. The woofer on the right hasn't been cleaned and the one on the left has. So the "gooey" is as taken care of as it's going to get. Kinda hard to see it...
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    I went at the surrounds with Dawn dish liquid in...

    I went at the surrounds with Dawn dish liquid in warm water. Seems to have gotten rid of most of the crap. They are still a bit tacky but then so am I.87735
    Since I have these opened up, would it be...
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    Earl K or Kay Pirinha? If Kay Pirinha, then yeah,...

    Earl K or Kay Pirinha? If Kay Pirinha, then yeah, that's the route I will go here.:p
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    After more searching on the Google box, it seems...

    After more searching on the Google box, it seems that alcohol will degrade rubber. Drive belts may be OK on occasion but a thin membrane like these surrounds would likely be damaged. I might just try...
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    Does anyone know if Goo Gone would be too...

    Does anyone know if Goo Gone would be too aggressive for this type of speaker surround? Citrus based means acidic.
    I'd like to bring these back to "as new" condition and keep them. The cabinets need...
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    I would agree normally. It depends on what the...

    I would agree normally. It depends on what the "treatment" is. If it's Armor All then that isn't a good thing so I've heard. And if someone thinks putting some sort of treatment on their surrounds to...
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    87675

    87675
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    After taking the time to search some images of...

    After taking the time to search some images of this woofer, I can see that it's not a normal condition (as I figured), and someone has tried to "condition" the surrounds at some point. Very...
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    JBL L20t3 woofer surround

    I just picked up a pair of L20t3's and after sitting down with them for an hour of critical listening, I'm happily impressed. However, I noticed that the surrounds on the 6.5 inch 115H-1 woofers are...
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    I've got a pair of old school TL 900 in my garage...

    I've got a pair of old school TL 900 in my garage still pumping away. Refoamed and mounted in boxes with my old alpine car stereo driving them. 65 watts per channel seemed pretty big back in the mid...
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    4642A or double 4641's

    I guess the question now is whether, to build a 4642A out of these two drivers, or two 4641.
    The 4642A gets good press but is rather huge. Two 4641's would be more manageable.
    Parts Express states...
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    I picked up a couple of 2241H's last night for...

    I picked up a couple of 2241H's last night for what I think was a good price. $425.00/pr CAD, which would work out to about $160 bucks a piece in US dollars. In great condition. Should fill in the...
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    That is why I was inquiring about the 2241H in...

    That is why I was inquiring about the 2241H in post 11. I could make a couple of 4641 or even a 4642a out of two 2241H.
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    I realize that these are weak on the low end. 100...

    I realize that these are weak on the low end. 100 hz being the lowest pretty much.
    Would a pair of 2241H be worth while mating up with them?
    I've been doing the search thing and the 2241H doesn't...
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    How about a pair of 2241H?

    How about a pair of 2241H?
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    OK, thanks guys. Now that's cleared up.:thmbsup:...

    OK, thanks guys.
    Now that's cleared up.:thmbsup:
    I misunderstood your responses.
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    I guess I didn't word that right. What I meant...

    I guess I didn't word that right.
    What I meant was, are these aftermarket or OEM JBL diaphragms.:confused:
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    Are these aftermarket 2404H diaphragms?

    Personally, I wouldn't know by looking at them, so thought I would pose the question here with photos.
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    I just auditioned them and brought them home....

    I just auditioned them and brought them home. They are beasts. I don't really know what my plans are for them but I couldn't pass up the deal. $500 Canadian for the pair ($360 USD). That's $180 U.S....
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    I would like opinions on what a good price to pay...

    I would like opinions on what a good price to pay for a pair might be. It looks like they can still be had new for about $9000 a pair. The 2451 sell for about $3000 a pair. Neither dollar figure is...
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