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    There is no schematic available. However if you...

    There is no schematic available. However if you read the cap values in the mid and HF you can then work out your charge coupled parts values from there.
  2. Thread: Jbl 4435

    by Ian Mackenzie
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    http://warehousesound.com/r/jblTECHNOTE1-12B.pdf...

    http://warehousesound.com/r/jblTECHNOTE1-12B.pdf

    The 4435 is a negative system meaning that a positive voltage on the red input terminal will produce a negative force at the woofer diaphragm.
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    For your clarity, A note from the designer: ...

    For your clarity,

    A note from the designer:

    “Should be a label on the back. The XPL should have an HF level switch which goes 0 and + 2. The XPL-A should go 0 and -2. The XPL uses a 095Ti...
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    Can you post a picture of both sides of the pcb ?...

    Can you post a picture of both sides of the pcb ?

    I might be able to confirm which version you have.
  5. If you check the T/L parameters the 2202A and the...

    If you check the T/L parameters the 2202A and the 2205H are virtually identical. The 2202H was the ferrite conversion from Alnico back when there was a shortage of cobalt. There were some...
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    Hi Morton? This is a wild card idea. Years...

    Hi Morton?

    This is a wild card idea.

    Years ago in a local club they had a particular good system build as a permanent installation.

    They used three 2225 drivers back then, 4 x K110 and a...
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    On the L pads no that burn in is not going to...

    On the L pads no that burn in is not going to effect an objective measurement.
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    Attached is my hand held simulation using Speaker...

    Attached is my hand held simulation using Speaker box Lite

    2x 2226 in 265 Litres net tuned to 40 hertz.

    Have you informed your neighbours of your new project?

    Hi Richard, can you please...
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    I don’t know where you ended up but look here for...

    I don’t know where you ended up but look here for good jbl used drivers

    https://jamminjersey.com/detail/001159/jbl-2202h-12-high-efficiency-mid-basswoofers

    https://jamminjersey.com/

    They do...
  10. Why not use the 18Sound recommendation of 800...

    Why not use the 18Sound recommendation of 800 hertz on that horn and driver.

    Crossover with 24 dB or a 36 dB per octave slope dsp based network and your done.
    ...
  11. “Ian, Ari is correct, you can substitute the...

    “Ian,

    Ari is correct, you can substitute the 435Al-1. There will be a small difference in response above maybe 6 kHz with the Al-1 being smoother and a little lower in output.

    I am surprised...
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    Wow. What a great project. I think you’ve...

    Wow.

    What a great project.

    I think you’ve had a number of great perspectives on how to proceed.

    As everyone has said see how it goes. If you need some bass boost or a bit of extension you...
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    Other tips By far the most issues clone...

    Other tips

    By far the most issues clone builders face is with used drivers not meeting specifications.

    Typically builders assume their drivers are good but unfortunately this is not always the...
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    DIY Audio Measurement Primer For diy purposes...

    DIY Audio Measurement Primer
    For diy purposes please find below some recommendations:

    1.Measurement software/ systems
    In diy the de facto loudspeaker measurements tool is REW.

    It’s well...
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    Okay no worries. Ian

    Okay no worries.

    Ian
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    Hi RMC, Please accept my apology for that...

    Hi RMC,

    Please accept my apology for that unfortunate post recently. Hopefully we can put our differences behind us and move forward in a collaborative way.

    To that end l would like to extend...
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    Hi Ari, A bit about me. I treat a new forum...

    Hi Ari,

    A bit about me.

    I treat a new forum member like the customer and l am here to sell you the JBL legacy experience, authentic and bring it to life. To do that you have to have lived with...
  18. Radian. If you read the Radian tech doc they...

    Radian.

    If you read the Radian tech doc they are claimed to be a direct equivalent to the original jbl diaphragms and are the preferred choose by studios still using these legacy monitors.
    ...
  19. Rob is spot on. Please see my response to your...

    Rob is spot on.
    Please see my response to your pm.

    You can try a 1.5 to 2.00 adapter. They are sometimes on EBay

    Your project looks great. Enjoy. When l get back to Noosa we must catch up.
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    Hi Ari, Your right but it would be naive to...

    Hi Ari,

    Your right but it would be naive to believe anything will change If it was going to grow into something better it would have already.

    In the meantime a group of like minded JBL...
  21. I will see if l can get hold of a Greg and ask...

    I will see if l can get hold of a Greg and ask him.

    Will email you when l have an update.

    I should have done that in the first place rather than see it turn into a soap opera..Lol
  22. Just in From a LHS member in Europe: “Greg...

    Just in

    From a LHS member in Europe:

    “Greg Timbers told me for few years ago at you can use 435Al-1 instead of 435Al in 4348 and 4338. 435Al-1 are smoother than 435Al because of the Aquaplas...
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    Hi Richard I must have had a seniors moment....

    Hi Richard

    I must have had a seniors moment.

    Too bad you actually went to the trouble of looking for nothing.

    Besides you said the 43xx was not your thing? So why are you in this thread?...
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    The complication is that these are 4 way and most...

    The complication is that these are 4 way and most people find it difficult to obtain a satisfactory result by ear.

    I have prescribed else where a method of obtaining a highly accurate match in...
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    Looking at the voltage drive of the 4344mk11 with...

    Looking at the voltage drive of the 4344mk11 with the drivers connected (not the 8 ohms test load) the woofer is a damped 2nd order filter. The midrange crossover is in fact a 2nd bandpass filter...
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