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Thread: 1500FE available?

  1. #1
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    1500FE available?

    I posted this in the General forum but without reponse. It's also a DIY relevant question so maybe I should have (cross?) posted it here -


    I know a few people have obtained 1500ALs but a bit too expensive for me.
    I've seen the 1500FE list price quoted and there's been some discussion about their suitability for projects.
    Has anyone actually obtained any?

    TIA (or not as the case may be!)

  2. #2
    sa660
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    1500FE M150HE 1200FE M120HS

    Can these beast for low frequencies be purchased alone on this planet?
    I would love to know?
    Is japan a good starting point?

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    Quote Originally Posted by sa660
    Can these beast for low frequencies be purchased alone on this planet? I would love to know?
    - The ME150H can be purchased directly from Harman in the U.S. of A.
    - Motivated US retailers , may sell for less than the $415. list price. ( & it is a great woofer with a noticably higher level of resolution than a 2235H )
    - I assume the 1500Fe is available to those who are willing to place an order with Harman and then wait for a production run.

    Quote Originally Posted by sa660
    Is japan a good starting point?
    That , I don't know .
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  4. #4
    sa660
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    M150HE

    Earl,

    Would you replace 2234 with M150HS or 1500FE in a studio monitor 4435?

    Regards,

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    Quote Originally Posted by Earl K
    - Motivated US retailers , may sell for less than the $415.
    Why would they? JBL Consumer hasn't been in the Loudspeaker Component business for several decades now. The parts on the website you commonly refer to are replacement parts.

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    Quote Originally Posted by sa660
    Would you replace 2234 with M150HS or 1500FE in a studio monitor 4435?
    Sure, why not. Just redesign the network. You'll need to rework the low pass on the second LF transducer as well since the roll-off of the two replacement transducers will be different than original.

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    Quote Originally Posted by sa660
    Earl,

    Would you replace 2234 with M150HS or 1500FE in a studio monitor 4435?
    - Not likely .
    - I can only speak of the ME150HS since I haven't heard the 1500Fe ( or the 1500AL ) / but I do feel a 1.75" diaphragmed compression driver just doesn't offer the needed resolution to properly voice with twin ME150(s). IME, a 3" diaphragmed compression driver offers a better matchup . And then most will want a tweeter for the same reasons making most of 4435 approach a moot point.

    - I also feel, twin 2234(s) will subjectively output more VLF than twin ME150(s). I find the ME150H is "voiced" more towards the older 2205 / 2225 . They carry the extra 50 grams of mms very well . Subjectively, they appear to shed most of the extra cone weight / which is the basis for my comments on voicing .

    - I've never crossed my ME150s as high as 1000hz ( only 800 hz ) . Their response curve is quite similar to that of the 1500Fe ( which is available to you to peruse, here ! ) You can see from the FR plot that a 1000hz crossover point will require you to deal with these woofers' rising response . Measured on-axis, the climb appears to these eyes to start around 350hz, which is pretty consistent with my ME150(s) .



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    Quote Originally Posted by Earl K
    - Not likely
    Like I said, you could and would have to rework the networks.

    Stay tuned till around September...

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    Senior Member northwood's Avatar
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    Oh 1500AL

    I dream of it every night.
    It seems that I have no possibility to get the components used in K2-9800.
    Hope you can get what you want.
    The price is not too hight compare to the price of a set of 9800.
    A government big enough to give you everything you want is big enought to take away everything from you

  10. #10
    Senior Member Guido's Avatar
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    Quote Originally Posted by Giskard
    Like I said, you could and would have to rework the networks.

    Stay tuned till around September...
    Come on... Not with that ole' 2426. A nice 2435 instead? i mean if we are reworking networks....

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    Quote Originally Posted by Guido
    A nice 2435 instead?
    Why settle for that?

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    Senior Member Guido's Avatar
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    Quote Originally Posted by Giskard
    Why settle for that?
    Because I have 2 now

    Please JBL don't come up with a new driver I have to hunt down

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    The problem is the horns. What horns would you use with the 2435?

    What we need is for someone to design a 2344A type to mount the larger compression drivers. The 2344A is still the go-to horn. It just needs a bit of tweeking. I mentioned throwing mine away a few weekends ago and the response was "Noooooooooooooooo!" with the person running towards me in slo-mo.

  14. #14
    Senior Member Guido's Avatar
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    2344 is THE horn to go?

    Yep, agreed. Result of my last measuring session. Well it was the same result 100 sessions before

    The PH 316 isn't a JBL, ok. But it measures and sound nicely too. It isn't as constant as the 2344 from 30° upwards. Need throat modification.

    I'll test the 2435 with PH316 and with JBL PT Waveguides in my 4435. I still feel that there is more to improve with the Mid/High section than with the woofer section in the 4435. That's why your post irritated me a bit and I started to hijack this thread.
    I remember you writing that it's time to improve this 20 year old 4430/35 design some time ago but unfortunately you didn't tell how


    Oh, never throw away a 2344

  15. #15
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    Quote Originally Posted by Giskard
    The problem is the horns. What horns would you use with the 2435?
    2352, if you've got the room for it....

    Ask Mr. Widget. I recall he recently said it was the best-sounding of all the horns I've tried here with the 3" diaphragm drivers....

    Quote Originally Posted by Guido
    The PH 316 isn't a JBL, ok. But it measures and sound nicely too. It isn't as constant as the 2344 from 30° upwards. Need throat modification.
    The directivity sucks in the horizontal, as well:

    http://audioheritage.org/vbulletin/s...0608#post40608

    Tim G found similar:

    http://audioheritage.org/vbulletin/s...1983#post41983

    Those were with 1" drivers and throat adapters, but I did mount the 1.5" 243x drivers and try them, with similar results.

    Now that CLIO's running, I should probably document that....

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