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  1. Need one pair tweeters for JBL Northridge E100

    Need one pair shielded titanium laminate dome tweeters for JBL Northridge E100
    I am from ROMANIA/Europe. Any source at decent price ?
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    JBL MPA 400 Amplifier problems

    Have JBL MPA 400 amplifier. One channel is perfectly functional. The second channel not working.
    The problem is in the protection modules.
    I have the pdf schematic but the U 501, 502, 503 (for...
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    thank you very much for your help. keep in touch.

    thank you very much for your help.
    keep in touch.
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    Thank you for the answer. I found for sale Radian...

    Thank you for the answer. I found for sale Radian diaphragms for 2416 here in Romania

    https://www.thomann.de/ro/radian_12258.htm

    98 Euro/piece. Will buy 2 these days.
    Have another question....
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    Thank you very much for the explanations. I did...

    Thank you very much for the explanations. I did not blame the crossover just because
    JBL never did bad things. I used carefully selected components and checked the final assembly for several times....
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    help for JBL 4425 crossover problem

    Have a problem with JBL 4425 crossover.
    R201 (LPad nr. 2) N36-58450 (8ohm/30W) have a very very little influence, close to zero, almost non-existent.
    In my opinion for my JBL 4425 speakers R201 is...
  7. Finally - after 3 months - received the LPads

    Finally - after 3 months - received the LPads
  8. Project in work. Added 2 supertweeter extension.

    Project in work. Added 2 supertweeter extension.
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    Thank you very much.

    Thank you very much.
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    Altec Lansing 1650 equalizer problem

    I find old Altec Lansing 1650 Equalizer. There have been several changes over time.
    The equalizer works but sometimes totally random made a very loud "boom", exactly like a shotgun fire.
    I can not...
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    Si condensatoarele Audiophiler

    Si condensatoarele Audiophiler
  12. Finally I found the last 4 horns in the world....

    Finally I found the last 4 horns in the world.
    JBL 2342 horn found for sale after many months.
    I can give to all the construction details.
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    Finally received the Audiophiler capacitors....

    Finally received the Audiophiler capacitors. Crossover almost ready. Still waiting for LPads and low frequency coils
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    Some capacitors arrived. Wait for the rest.

    Some capacitors arrived. Wait for the rest.
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    Thank you Earl K This is final point for the...

    Thank you Earl K
    This is final point for the moment. I am waiting for the capacitors.
    The only one item missing: 20 ohm/10W, non inductive resistor, and most of
    producers/sellers do not want to...
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    Crossover in work

    Crossover in work
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    Crossover in work

    Crossover in work
  18. 4425 after primer painting. Will follow soon the...

    4425 after primer painting. Will follow soon the final painting.
    If I will paint them inside with speaker cabinet texture coating will improve the sound ?
  19. Painting process

    Painting process
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    Thank you POS for message. I know that JBL 3678...

    Thank you POS for message.
    I know that JBL 3678 use the same 2342 horn.
    About 2342 horn very few things can be found on internet.
    Unfortunately I am from Romania and a market of used speakers...
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    I don't have JBL 4425. I try to build a pair of...

    I don't have JBL 4425. I try to build a pair of JBL4425 clone and I want to be perfect as JBL made it.
    I started with a large documentation about these speakers.
    I posted the building evolution at...
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    Have some pictures with 4425 original crossovers....

    Have some pictures with 4425 original crossovers.
    Not see audiophile devices.
    Resistors look to me like any other power resistors.
    Are non inductive models ?
    Capacitors look the same as usually...
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    Thank you Larry M for quick answer. Crossover...

    Thank you Larry M for quick answer.
    Crossover final layout it's here.
    As you said the best solution it's to build the crossover "on air" with thin wood piece as support.
    I will do that and will...
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    I saw the mistake, mea culpa. Will made the...

    I saw the mistake, mea culpa. Will made the correction for R1/R2.
    Both coils will made by myself. In Romania JBL spare parts very hard to find.
    For L1 I can do air core coil, ferrite core coil or...
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    Jbl 4425 crossover layout

    Here it's JBL 4425 CROSSOVER LAYOUT
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