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    I think you're right, both the same. That matches...

    I think you're right, both the same. That matches up with the parts I found in each - the same.
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    Here are some pictures that might explain what...

    Here are some pictures that might explain what I'm talking about.
    This started a while back when I had listed a pair of N7000 crossovers. Someone asked if they were 8 or 16 ohm. I commented there...
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    The question is basically, is there a difference...

    The question is basically, is there a difference between crossovers labeled "N7000" and those labeled "N7000 16 OHM".
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    That's what it looks like. Anyone else ever find...

    That's what it looks like.
    Anyone else ever find an N7000 that uses anything other that the 1.5 mF caps and .6 mH coils?

    Thanks,

    Eric M.
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    N7000 vs N7000 16 ohm

    I have always heard the JBL crossovers labeled "16 ohm" were no difference than ones with no impedance labeling, ie. N7000 vs N7000 16 ohm. I finally decided to have a look for myself. An older...
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    UPDATE: Was just looking at the picture. I...

    UPDATE:

    Was just looking at the picture. I noticed there are 2 sets of mounting holes. I turned the diaphragm 180 degrees and it fits the second set of mounting holes. Still, some oddities about...
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    JBL Gurus, could you take a look at this?

    I picked this up in a lot of JBL gear. I was told it was a LE100S but it doesn't match the LE100S or any of the 175s I have. The cover bolts are closer to the edge (see pictures) and although a 175...
  8. Thread: Jbl hl180f?

    by Eric M.
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    Jbl hl180f?

    Anyone ever hear of a HL180F? I pick up the one recently listed on e-Bay only because it peaked my interest. It's identical to the 175 but has a phenolic diaphragm. Could it be like the 2482 which...
  9. Thank you guys. I soaked in acetone overnight...

    Thank you guys.

    I soaked in acetone overnight and was able to remove a lot of the caulking. The old surround and glue came off fairly easy. I had to soak again overnight and scrape with my...
  10. Personally I leave this sort of thing to those...

    Personally I leave this sort of thing to those who have learned the hard way how to do it the right way. ;)

    Widget

    I'm trying to be one of those guys! Any recommendations as to who I might PM?...
  11. LE8T, LE10A, etc, rubber gasket that holds cone surround to frame HELP

    Anyone come up with a source or alternative to that black gasket that glues to the frame over the edge of the surround on JBL speakers like the LE8T and the LE10A? I have a few drivers missing that...
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    Both measured 12.7 DCR. Thanks!

    Both measured 12.7 DCR.

    Thanks!
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    Odd labels

    Odd labeling. Both are D-130B but one is labeled 32 ohms and the other 16 with 32 written over in faded ink.
    Was there such a thing as a D-130B, 16 ohm? Wouldn't that have just been a D-130A?
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    Pair of D130B, 32 ohm! Original and pristin. ...

    Pair of D130B, 32 ohm! Original and pristin.

    The other cabinet had a PR15 and a later model D130, 16 ohm (gray wrinkle paint)
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    Possible D130B .... if I'm lucky. The cabinet...

    Possible D130B .... if I'm lucky.
    The cabinet looks a lot like the Corner Reflex #32 or 33. No Emblem, so assuming custom built to JBL specs.
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    Need HELP identifying a driver

    Attached are pictures taken through the crossover cutout for an N1200 crossover. There appears to be two 15" drivers in each cabinet. Only the low end of the crossover is connected to the speakers in...
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    I use a 9 volt as well. It moves big cones enough...

    I use a 9 volt as well. It moves big cones enough that you can clearly see their direction. I doubt keeping it hooked up very long will do any damage to low end drivers, just not enough wattage.
    For...
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    I was reading up about that. Crossovers play a...

    I was reading up about that. Crossovers play a roll in phasing as well as the physical location of the voice coil in relation to other voice coils (in a 2, 3 or more way) system. I use electronic...
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    On compression drivers, if you have red seals on...

    On compression drivers, if you have red seals on the back cover and don't feel like prying them out to do the battery test, what sort of equipment would you use to check phasing / polarity?
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    Did they do this with all their older gear?...

    Did they do this with all their older gear? LE15A, LE8T, 375, LE85, 175, 075, 077, etc.? I'm assuming they had to or their own speakers would be out of phase. I wonder when they made the change and...
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    How to determine proper JBL polarity

    Everything I read (non-JBL) says DC current to a speaker pushes the dome or diaphragm outwards. Yet, when I check a know original JBL driver, I get the opposite. I've heard that JBL often wired...
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    Earl, thank you for your help. I'll run the...

    Earl, thank you for your help. I'll run the 2225H and crossover at 800. The 2225 is good to 1200 and I should not have any issues with my LE85 crossing that high.

    Thanks again,

    Eric
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    Enclosure #34 ...

    Enclosure #34

    http://www.lansingheritage.org/images/jbl/plans/c34/page2.jpg

    http://www.lansingheritage.org/images/jbl/plans/c34/page1.jpg

    My cabinet is a little different in that there is...
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    Thanks. I had not thought about switching out the...

    Thanks. I had not thought about switching out the LE15a for something better suited for the folder horn design. I can certainly do that. It sounds like due to the cabinet design, I'm really limited...
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    LE15a frequency response?

    Anyone know the actual frequency response of the LE15a or have a graph? I will be running the 15a in a folded horn enclosure with an LE85 and an 075. When younger I use to listen to music way too...
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