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    A really nice guy. At one time (Sept. 2016) I...

    A really nice guy. At one time (Sept. 2016) I presented my 075/2402 lenses to him and he was very impressed and wished me luck in the endevor. He also asked if I could/would make them in larger...
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    Actually, when you consider what I was working...

    Actually, when you consider what I was working with..., :applaud:

    2241H spectrum (JBL service manual):
    https://elektrotanya.com/PREVIEWS/63463243/23432455/jbl/jbl_2241h.pdf_2.png

    2251J...
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    ~4mH/30mfd gave the best blend to the 2251J. ...

    ~4mH/30mfd gave the best blend to the 2251J. Recognize I only work with what I have on hand, so values could certainly be better optimized.

    It's 5 dB per division so we are at ~-70DB +-~5 dB down...
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    Refining the Old Girl

    The other day I posted the spectrum for the Ethyl Mermans and it was easy to see why they do female voices so well.

    But now they gots more balls. I revised the crossovers to push more energy into...
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    This is certainly part what I/we are discussing....

    This is certainly part what I/we are discussing.

    "not terribly useful" is your point of view and does not deny usefulness, only setting limitations on it.

    Again, YouTube and a good recording...
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    So then, if I make a video of the L300s being...

    So then, if I make a video of the L300s being switched back and forth to the Mermans, with the volume levels matched using pink noise, none of you think you would note a difference or be able to tell...
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    Yes. But I am a critical listener. If you...

    Yes. But I am a critical listener.

    If you went to the tread I linked and listened to the numerous systems, and read the posted comments on the systems, you would find that the better (smoother...
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    There are speakers that I will never get to hear,...

    There are speakers that I will never get to hear, but could get a very good idea of their sound from a well done video.

    For example, does the 4343/4345 suffer from the same "vocal veil" as the...
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    I can do/have done YouTube recordings on my Nikon...

    I can do/have done YouTube recordings on my Nikon D750 of the Mermans, the Super Big Reds, and the L300s and listen to the YouTube recordings on my computer system, and I can hear the elements of the...
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    That's just BS. Maybe for some unscrupulous...

    That's just BS. Maybe for some unscrupulous flippers, but not for the hobbiests in general. In so many cases it is easy to see/hear when someone moves the camera around and the sound changes...
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    Then I feel sorry for you. :crying: I can...

    Then I feel sorry for you. :crying:

    I can listen to the JBL "family" of 15"/compression drivers and hear it over a YouTube video.

    Are you honestly going to tell me that these systems sound the...
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    So, you can't listen to two systems on YouTube...

    So, you can't listen to two systems on YouTube and tell if one "could" sound good and the other like "would" sound like crap? You can't tell if the frequency response is smooth or riddled with peaks...
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    Agreed..., but, You can still hear smooth vs...

    Agreed..., but,

    You can still hear smooth vs peak and dips in the frequency response, clarity in the vocals, and an overall balance. (At least I can.) If you can't even get those right, forget...
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    For the Love of Money...

    On the Ethyl Mermans. CD on Oppo-95 through Yamaha RX-Z9 receiver in "Direct" mode. No eq, digital processing, room correction, sub, etc.


    https://youtu.be/qzjztUEy2V8
  15. These are theoretical values and in practice are...

    These are theoretical values and in practice are under-estimates when dealing with high power levels near the limits of the speakers capabilities. In the real world, when you apply big power you...
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    Point of reference: This is the spectrum for...

    Point of reference:

    This is the spectrum for the Ethyl Mermans where I sit on the couch among the cushions. This is from the pink noise source in the Behringer DEQ2496 and there is no sub, eq, or...
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    The cabinets came out very nice with a unique,...

    The cabinets came out very nice with a unique, but definitely JBL look. :thmbsup:

    Will there be an actual plot of the woofer/horn combination?
    ...
  18. Have you priced, or even tried to find original...

    Have you priced, or even tried to find original 2235 cones? The cost just to recone a 2225 to a 2235 will cost you more than the 2225 (maybe even 3-5 times the cost depending on the deal you make)....
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    Vanessa Fernandez on the Ethyl Mermans

    For some strange reason, YouTube has changed their copyright policy and videos that previously played, but were subsequently blocked, and videos that were blocked from inception and never played, now...
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    Not necessary. Thanks.

    Not necessary. Thanks.
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    Interesting, thanks. Seems like a lot of...

    Interesting, thanks. Seems like a lot of capacitance for a 5.4 mH choke. For a 2nd order Butterworth, 5.4 mH would go with 42 mfd for a frequency of 335 Hz. I guess they wanted to increase the...
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    What is the value of the choke on the 18"?

    What is the value of the choke on the 18"?
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    Thanks, I saw them at the Long Beach Arena and...

    Thanks,

    I saw them at the Long Beach Arena and at California Jam when both times Keith had his flying piano.

    It's a Criterion 8-1/4".
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    You are running the Utahs too high. The...

    You are running the Utahs too high.

    The Mastering Labs put a big choke on it for a 1st order slope. The crossover even cost more because of the choke.
    ...
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    That was recorded using the mics built into the...

    That was recorded using the mics built into the camera. The sound is stereo, but because the mics are so close together, you loose a lot of separation.
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