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Thread: Jbl le8t-2 help !!!

  1. #1
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 1,090
    I'm Andrew.

    Default Jbl le8t-2 help !!!

    Today the new foam surrounds arrived for the above as the old ones had perished.
    (Walpurgis was very kind in guiding me )
    I had meticulously cleaned all the old foam and glue off and handled these like wet tissue paper.
    Once they were well dry I set about installing them back into their cabinets...then nothing!! Sweet fa from them
    So I removed them once again to test them and to my horror it wasnít the crossover but itís the drivers , thing is they worked fine before ( see photo )
    Now I have seriously handled these with great care so Iím baffled ( as is Geoff )
    ANY IDEAS anyone ?
    Apart from telling me that theyíre FÄ>#%>%


    Sent from my iPhone using Tapatalk

  2. #2
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 5,391
    I'm Oliver.

    Default

    Pics don't work
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 tonearm > Ortofon Kontrapunkt b > Wizard Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Firebottle modded Xiang Sheng DAC (Telefunken Valve)
    Amplification: Slagle AVC Passive Preamp & Firebottle Monoblocks (Telefunken Valves)
    Cables: Fisual S-Flex Speaker Cable & SPOTFIRE IC Cables Throughout
    Speakers: Pioneer CS-77A

  3. #3
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 1,090
    I'm Andrew.

    Default

    Donít know why they seem ok on my phone


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  4. #4
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 44,819
    I'm Grant.

    Default

    working for me
    Regards,
    Grant ....

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    OPPO BDP-103D DARBEE - JBE SERIES 3/B&O SP1/EMOTIVA XPS1/12V BATTERY - TWIN PRO MONOBLOCK AMPLIFIERS - XIANG SHENG DAC\PRE\HEADPHONE AMP\WE TUBED - TWIN AVANTREE OASIS CLASS 1 BLUETOOTHS - AUDIO TECHNICA ATH-MSR7 & OPPO PM-3 PLANAR HEADPHONES - WIN10 JRIVER24, SPOTIFY - SMSL M6 MINIDAC - RPI/AUDIOPHONICS/5V BATTERY - FULL RANGE TWIN TELEFUNKEN/Q ACOUSTIC BT3/CANTON SUB - P.INSPIRED MAINS REGENERATED.

  5. #5
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 44,819
    I'm Grant.

    Default

    Are they open circuit. If not are they connected correctly. If that's ok the are the voice coils free
    Regards,
    Grant ....

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    OPPO BDP-103D DARBEE - JBE SERIES 3/B&O SP1/EMOTIVA XPS1/12V BATTERY - TWIN PRO MONOBLOCK AMPLIFIERS - XIANG SHENG DAC\PRE\HEADPHONE AMP\WE TUBED - TWIN AVANTREE OASIS CLASS 1 BLUETOOTHS - AUDIO TECHNICA ATH-MSR7 & OPPO PM-3 PLANAR HEADPHONES - WIN10 JRIVER24, SPOTIFY - SMSL M6 MINIDAC - RPI/AUDIOPHONICS/5V BATTERY - FULL RANGE TWIN TELEFUNKEN/Q ACOUSTIC BT3/CANTON SUB - P.INSPIRED MAINS REGENERATED.

  6. #6
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 35,238
    I'm Geoff.

    Default

    Quote Originally Posted by struth View Post
    Are they open circuit. If not are they connected correctly. If that's ok the are the voice coils free
    They worked before the new cone surrounds were fitted. Hard to think what may be going on. Maybe the lead out wires from the cones failed. It seems odd that both units have seemingly packed up.

    Have the drivers been connected directly to an amp to test them yet, ignoring crossovers?

  7. #7
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 1,090
    I'm Andrew.

    Default

    Quote Originally Posted by walpurgis View Post
    They worked before the new cone surrounds were fitted. Hard to think what may be going on. Maybe the lead out wires from the cones failed. It seems odd that both units have seemingly packed up.

    Have the drivers been connected directly to an amp to test them yet, ignoring crossovers?
    No I have only re-installed them in their cabs and tested with my meter and there is absolutely nothing


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  8. #8
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 1,090
    I'm Andrew.

    Default

    Quote Originally Posted by struth View Post
    Are they open circuit. If not are they connected correctly. If that's ok the are the voice coils free
    I think somehow the voice coils have taken damage though lord only knows how


    Sent from my iPhone using Tapatalk

  9. #9
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 1,090
    I'm Andrew.

    Default

    There is no rubbing sound and they move up and down freely


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  10. #10
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 35,238
    I'm Geoff.

    Default

    Quote Originally Posted by andyrlb View Post
    I think somehow the voice coils have taken damage
    I doubt it, unless you were rather brutal with the cones. Try remaking the soldered connections at the terminals where the lead out wires attach if you can reach them.

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