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  1. #1
    Senior Member Mike F's Avatar
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    L36a inductor

    Seems most agree on the benefits of recapping the x-overs but no one mentions replacing the 2 mH coil.
    I`m replacing the original caps for some Solens so should I bother with the inductor while I`m at it?
    TIA

  2. #2
    Moderator hjames's Avatar
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    Quote Originally Posted by Mike F View Post
    Seems most agree on the benefits of recapping the x-overs but no one mentions replacing the 2 mH coil.
    I`m replacing the original caps for some Solens so should I bother with the inductor while I`m at it?
    TIA
    Capacitors are generally replaced as they can dry out and the values can change.


    Coils are basically just turns of wire - they don't generally fail or change value.
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  3. #3
    Senior Member Mike F's Avatar
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    Quote Originally Posted by hjames View Post
    Capacitors are generally replaced as they can dry out and the values can change.


    Coils are basically just turns of wire - they don't generally fail or change value.
    True, but I was wondering if it would be worthwhile changing out what appears to be an iron core coil to an air core or a fancy Hepta Litz, both seem rather pricey too.
    I guess I`ll leave well enough alone, for now...

  4. #4
    Senior Member Baron030's Avatar
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    Hi Mike

    A few years back, I overhauled a pair of N2400 crossovers and replaced the original small 20ga iron core coils with 18ga Erse I-Bar iron core coils. And I did notice an improvement in how the 030 system sounded at high volume levels. No real difference at low volume levels, but noticeably cleaner at high levels. So, I would think that upgrading to air core coils would be even better. My recommendation would be to choice a fairly heavy gauge air core coil, so that the DC resistance closely matches that of the original iron core coil. An ERSE 2.0mH 14 AWG Perfect Layer Inductor (Partsexpress # 266-370) would be my choice for such a project.

    Baron030

  5. #5
    Senior Member Mike F's Avatar
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    Quote Originally Posted by Baron030 View Post
    Hi Mike

    A few years back, I overhauled a pair of N2400 crossovers and replaced the original small 20ga iron core coils with 18ga Erse I-Bar iron core coils. And I did notice an improvement in how the 030 system sounded at high volume levels. No real difference at low volume levels, but noticeably cleaner at high levels. So, I would think that upgrading to air core coils would be even better. My recommendation would be to choice a fairly heavy gauge air core coil, so that the DC resistance closely matches that of the original iron core coil. An ERSE 2.0mH 14 AWG Perfect Layer Inductor (Partsexpress # 266-370) would be my choice for such a project.

    Baron030
    Good info Baron, thanks. I guess what you experienced can be attributed to less saturation at elevated volumes, correct?

  6. #6
    Senior Member Baron030's Avatar
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    Yes !

    I would have to say that original small 20 ga iron coils did saturate.

    Baron030

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