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  1. Hi Al, Thank you for outlining your journey. I...

    Hi Al,

    Thank you for outlining your journey. I had similar impressions with the 2397 stop my 4345 clones.

    Bring up the condition of compression drivers is a good point when trying different...
  2. Haaa, Please donít make me think. Letís...

    Haaa,

    Please donít make me think.

    Letís see.
    According to a sketched diy plan of the 2397 the horn on Google the horn protrudes 6.87 inches behind zee baffle.
    Then the 2428 adapter 4 inches...
  3. I donít know. Itís like all these things of it...

    I donít know. Itís like all these things of it measures the same it will sound the same. Just like amplifiers. Blah blah 😕
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    That front page link has the CSD logo. So that...

    That front page link has the CSD logo. So that must be out of data.

    Whoís funding the servers? Who now owns the site?

    It is frustrating when something like this is outside your control...
  5. My other earlier post on the myths of active...

    My other earlier post on the myths of active crossovers is to highlight what you can and can’t change.

    The signal processing capability of a dsp crossover might look impressive and make you...
  6. About 15 years ago l got involved in active...

    About 15 years ago l got involved in active crossover and built a diy clone of the Pass Labs XVR1.

    What l soon discovered and then validated with an LHS forum member in CA is that most pro and...
  7. I Matt, Thanks for your comments, A thread...

    I Matt,

    Thanks for your comments,

    A thread without something visual is a bit bland. I plan to put together a case study that illustrates the key points l made in my lengthy posts.

    One thing...
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    Hi Rob, In your post concerning Pots are you...

    Hi Rob,

    In your post concerning Pots are you referring to L pads in reference to the L250.

    On your active crossovers the cracking of a pot can be a sign that a dc leakage is a cross an...
  9. Whatís possible The loudspeaker engineer-...

    Whatís possible

    The loudspeaker engineer- designer has no control over the issues outlined above. But adjustments can be introduced in the loudspeaker system to reduce the apparent intensity of...
  10. Myths de bunked Sometimes itís about reaching...

    Myths de bunked

    Sometimes itís about reaching an understanding of whatís possible and to de bunking some of the myths and over glorifications that seem to float around cyberspace about active...
  11. The key benefits of active crossover networks ...

    The key benefits of active crossover networks

    Depending on exactly what you think your trying to achieve there can be merit in using an active crossover network. If you have or can obtain all...
  12. If you want to try a dsp time alignment first...

    If you want to try a dsp time alignment first obtain a very close match to a 4th order Linkwitz crossover characteristic for the woofer and the horn at identical crossover frequencies. Then with the...
  13. The work around In the absence of complete...

    The work around

    In the absence of complete information on the crossover characteristics the work around is to obtain detailed frequency response measurements of the passive system and that of the...
  14. (2) Obtaining complete and accurate information...

    (2) Obtaining complete and accurate information to make your bi amp or fully active JBL system work the way it should.

    Letís first look at the pre determined JBL passive loudspeaker systems
    ...
  15. Everyone is at a unique station in life. ...

    Everyone is at a unique station in life.

    Reading on the forums about how someone was able to set up their bi amp or active system is only really valid from their own perspective.

    In this post...
  16. Looking over my shoulder. To the thousands of...

    Looking over my shoulder.

    To the thousands of lurkers watching this thread try and interpret each post from your own perspective.

    Everyone has has their own level of hands on experience,...
  17. Active Loudspeakers - The what, where, why and how of your active loudspeaker project

    This is a new thread that picks up on the discussion of active crossovers in the 4345 - 3 way project thread over on the Lansing DIY forums.
    ...
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    See my new thread with re written series of posts...

    See my new thread with re written series of posts which will be easier to follow Unfortunately l missed the edit time line due to other commitments. Mods please delete if you wish. Ian
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    Looking over my shoulder To the thousands of...

    Looking over my shoulder
    To the thousands of lurkers watching this thread try and interpret each post from your own perspective.

    Everyone has has their own level of hands on experience,...
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    Each to their own You are right each to his own...

    Each to their own
    You are right each to his own and l leave it to people to do as they wish.

    But your perspective suggests a plug and play approach (in the absence of the requisite R&D which l...
  21. Beautiful.

    Beautiful.
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    Getting back on topic point of my commenting on...

    Getting back on topic point of my commenting on the Leap 5 software is that with skill and a detailed understanding of the 43XX systems variations for users can be realised with a high degree of...
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    If you install a windows ultimate you ďmightĒ...

    If you install a windows ultimate you ďmightĒ have more luck as it has XP built in.
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    Hi Riley. The answer is no l donít. Have a...

    Hi Riley.

    The answer is no l donít. Have a look at the freeware program Heather posted.
    I look forward to you posting about a project you have put together.

    The creator of Leap did his...
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    Great to see a project come to fruition. I am...

    Great to see a project come to fruition.

    I am a firm believer in realising variations of these famous 43XX monitors for system owners. Being able to put your own signature on the subjective...
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