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Thread: 3 ways to climb Everest

  1. #136
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    Settings for Ian

    LF1 24db slope
    Pole 1 - 88Hz - Q at M

    Pole 2 - 88Hz - Q at M
    Pole 3 - 106Hz - Q at M

    Pole 4 - 106Hz - Q at M

    LF2 24db slope

    Pole 1 - 530Hz - Q at M

    Pole 2 - 660Hz - Q at M
    Pole 3 - 750Hz - Q at H

    Pole 4 - 750Hz - Q at H

    High Pass 12 db slope

    Pole 1 - 750Hz - Q at H

    Pole 2 - 750Hz - Q at H

  2. #137
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    How did you get the woofers out, without damage.?
    Did you lay the speakers on the back, or? 🙈🙈

  3. #138
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    woofers

    It is a 2 man job in my case.
    secret is to undo the top screw last
    the bottom will pop out enough for a hold
    the 2nd woofer is easier as you can hold it from the inside.

    oh...please remember to remove your watch...otherwise it will be rearranged internally by the magnet

  4. #139
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    Quote Originally Posted by vivaregina View Post
    It is a 2 man job in my case.
    secret is to undo the top screw last
    the bottom will pop out enough for a hold
    the 2nd woofer is easier as you can hold it from the inside.

    oh...please remember to remove your watch...otherwise it will be rearranged internally by the magnet
    Aha, that was a good trick 😄
    I'll try that Way. 👍

  5. #140
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    Another experiment

    After so many years of fiddling with the overlapping bass settings...finally I decided to just chop the xo for both woofers...splitting the work load.

    This was partly inspired after listening to VOX Olympian including chatting with a delightful Mr. Kevin Scott, and Avantgard horns (with dsp) recently. Both systems with different philosophies have a different bass xo...so I thought...sacrilege....should I move away from GT's idea for the overlapping bass....

    you might consider trying it....and afterwards you can always rejoin the congregation.


    https://www.livingvoice.co.uk/

  6. #141
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    Quote Originally Posted by Brian DK View Post
    How did you get the woofers out, without damage.?
    Did you lay the speakers on the back, or? ����
    I think the best way is to lay the speaker on it's back which can be done solo, but not recommended. Two of the eight woofer mounting holes are threaded. JBL uses these with threaded tools to handle the woofers during installation. You can screw in a pair of bolts into these after removing the trim rings and the rest of the eight mounting bolts. Then you can then fairly easily lift the woofers out by grabbing the two bolts.


    Quote Originally Posted by vivaregina View Post
    oh...please remember to remove your watch...otherwise it will be rearranged internally by the magnet
    Unlike their ferrite brothers, the design of the magnet return circuit of JBL alnico magnet woofers is inherently self shielding so there is very little stray magnetic field. No worries for your watch.


    Widget

  7. #142
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    Quote Originally Posted by vivaregina View Post
    Kiwame Carbon Film resistor.
    The sound is smoother, less nervous around the 2k Hz region.
    Previously it was a little more metallic, more glare.
    I was skeptical before the change, but I heard it on the 2nd pair, and went for it.
    I would say the change improved the character of the speakers.

    Attachment 54765
    Do you have any idea/opinion, on the filter would
    benefit from changing all resistens, to Kiwame Carbon Film
    resistors?

  8. #143
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  9. #144
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    For those who want to build a kit it’s a possibility. It comes back to the old chestnut of the user having to figure out the adjustments which for a precise system like the Everest would be problematic. You can’t do that with a single turn trim pot.

    I have been using a similar two way prototype crossover for a few of years and it works fine as a rudimentary design for a diy kit.

  10. #145
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    (drawings for) 66000 bass reflex port assembly needed

    Hi everyone!
    I am trying to get the last missing parts to be able to start putting together my Everest 66000 project. I am missing one critical part, the curved bit with the dual bass reflex ports in the back. Anyone got a spare or drawings so I could try and make one. Sorry if posting in the wrong thread or so, I'm rather new to this forum.

    Cheers!
    Gee

  11. #146
    Senior Member Odd's Avatar
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    You will find some info here, see from post 447
    Hifisentralen

    (The page is in Norwegian)
    43XX (2235-2123-2450-2405-CC 3155)5235-4412-4406-4401-L250-18Ti-L40-S109 Aquarius lV-C38 (030) 305P MkII

  12. #147
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    Smile

    Quote Originally Posted by Odd View Post
    You will find some info here, see from post 447
    Hifisentralen

    (The page is in Norwegian)
    Wow!! Thanks Odd!!!!! Now hoping someone would give me a hand making those

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