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  1. Thread: fiberglass wool

    by 2$Bill
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    21
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    4,348

    Installation Tip

    As an installation tip, a person on another forum shared a tip that I used. Buy some women's panty hose and put your arms down the legs and you head in the middle. Works great.
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    JBL 4612 Crossover Family

    Hello:


    I have a pair of JBL 4612Bs and two pairs of 4612OKs. After more than 30 years of service, I thought it was time to replace the crossover caps. From looking at the crossover schematics,...
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    1,866

    Thank You!

    Thank you for your detailed responses. I hope the info is useful to others.

    Boll
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    1,866

    Demagnetize on recone?

    How important is it to have a speaker demagnetized when reconing? Thanks, Bill
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    1,674

    Thank You!

    Thank you very much for taking the time to answer my question. I really appreciate it. Bill
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    1,674

    Correct T & S Parameter

    All:

    I remember reading, some time ago, which Thiele & Small parameter was the best predictor for successful mating for use in a traditional single front loaded horn enclosure (in this case JBL...
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    1,639

    Thank you!

    I really appreciate your taking the time to answer my question.

    Bill
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    1,639

    Screw size for 2470

    All:

    I am trying to attach 2470s on to 2370A horns. What size screw fits into the 2470s. Every size screw I have tried binds up going into the 2470.

    Thank you for any knowledge you can share,...
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    Audio Upgrades

    Contact Jim Williams at Audio Upgrades!
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    Want to buy a Model 51-5334 crossover card.

    I want to buy a Model 51-5334 crossover card - "18dB/octave w/H.F. EQ. for 2380 series horns - 1200 Hz FFBREQ" - or at least an 18dB/octave card that can be reconfigured. Thank you, Bill.
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    3,014

    Recone E145s?

    Both the big reconers on the east and west coast say they have JBL E145 kits. Are you saying that even if one bites for the price of the JBL kit, one might not get original performance?

    Do the...
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    The More

    Thank you to all for your input.

    I have had these cabinets since the 70s. I have the 2220s that came with the cabinets, the E145s that replaced the 2220s, but all are in need of reconing. Good...
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    Drivers for 4560

    He's Back!

    Hi All!

    Is there any reason 2225 or 2226s could now be sucessfully used with 4560 cabinets?

    Thanks,

    Bill
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    2380A Horn

    "Without getting to far off the subject, the 2446/2382a combination does roll off pretty abruptly at 10 KHz. So, I would recommend that you add a UHF driver to your system."

    I also have a 2380A...
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    Thank You!

    Thank you to all who have replied.

    Most of my initial thinking came from viewing JBL product lines. The why of a midrange at all comes from JBL, in both consumer and pro lines, use of a cone...
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    10,082

    PA Midrange Help

    All:

    I am a PA used-to-be who is looking for additional thinking for a midrange speaker for a new system. Be it known that (1) I am not much of a woodworker and (2) I want to use stock on hand.
    ...
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    1,989

    Horn Adapters

    I ask about the same question on the Pro Sound Web - August 20, 2003 - and Tracy Sherwood of Design Direct Sound Inc. was kind enough to take the time to answer:

    " ... it has been my experience...
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    Test Equipment Needed to Tune Cabinet

    Hello:

    Can anyone point me to an article that discribes the procedure and test equipment needed to tune the port of a speaker/box.

    Thank you,

    Bill
  19. Thread: Jbl 2227h

    by 2$Bill
    Replies
    3
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    5,959

    Jbl 2227h

    Was there something inherently wrong with the 2227H - it seems it did not last to long in the lineup?

    Thank you,

    Bill
  20. Thread: Horn or Box

    by 2$Bill
    Replies
    4
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    3,130

    Thank you!

    I have a pair of 2220A's (and 2470s) left over from a past life that used to live in 4560s, but I sold the boxes over a decade ago. I'm trying to decide now what?

    I've looked at the curves in...
  21. Thread: Horn or Box

    by 2$Bill
    Replies
    4
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    3,130

    Horn or Box

    Which T/S specs should be considered when deciding if a speaker would work best in a horn loaded or vented box?

    Thank you,

    Bill
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    A-7 500 - Driver in or out of cabinet?

    What is the difference is sound with the 802D/511 driver/horn mounted on top compared to inside the cabinet?

    Thank you,

    Bill Wilson
  23. Thread: Restore 2220S

    by 2$Bill
    Replies
    0
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    3,420

    Restore 2220S

    Friends:

    I have a pair of 2220As I would like to put back into service. Is JBL still the best place to have them returned to pristine condition? Do I want the de-mag/re-mag service?

    Thank...
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