Monitor Passive radiator repair

cortico
cortico Posts: 587
in Vintage Speakers
I all, Is there any one that repairs rubber surrounds on passive radiators?
thanks
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Comments

  • soundfreak1
    soundfreak1 Posts: 3,414
    Which ones, may be able to pick them up here on the club cheeper than replacing surrounds
    Main Rig:
    Krell KAV 250a biamped to mid/highs
    Parasound HCA1500A biamped to lows
    Nakamichi EC100 Active xover
    MIT exp 1 ic's
    Perreaux SA33 class A preamp
    AQ kingcobra ic's
    OPPO 83 CDP
    Lehmann audio black cube SE phono pre, Audioquest phono wire (ITA1/1)
    Denon DP-1200 TT. AToc9ML MC cart.
    Monster HTS 3600 power conditioner
    ADS L1590/2 Biamped
    MIT exps2 speaker cable
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  • cortico
    cortico Posts: 587
    edited June 2015
    The 8" passive radiator sw80, I believe. I got a reserve set on ebay that is showing some signs of dry rot.
    IMG_9594.jpg
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  • F1nut
    F1nut Posts: 50,552
    There is no fixing that.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • westmassguy
    westmassguy Posts: 6,850
    edited June 2015
    Contact the seller and get your money back. Replacing Rubber Surrounds is a Royal PITA. Unless you have the exact thickness, and know the exact type of rubber compound that was used originally, the T/S parameters can change dramatically, rendering the PR useless.
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
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  • cortico
    cortico Posts: 587
    Interesting, I have compared 3 different 8" passive radiators and observed that they are different.

    Not sure if I am using the correct vocabulary, The older set has a thicker rubber surround, paper cone with coated fabric on the exterior. The other has a noticeable thinner surround, fabric cone with coated fabric on exterior?! The third looks the same as second but has a paper cone...

    They all seem to be original with no kids...
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  • soundfreak1
    soundfreak1 Posts: 3,414
    The surrounds and cones will be different between models and production years but should not vary within the same pair of speakers. If replaced it should be with surrounds of simular specs ie flexibility, density on the rubber and movement of the cone. If you use the incorrect one that can alter the sound dramatically. And ruin the speakers
    Main Rig:
    Krell KAV 250a biamped to mid/highs
    Parasound HCA1500A biamped to lows
    Nakamichi EC100 Active xover
    MIT exp 1 ic's
    Perreaux SA33 class A preamp
    AQ kingcobra ic's
    OPPO 83 CDP
    Lehmann audio black cube SE phono pre, Audioquest phono wire (ITA1/1)
    Denon DP-1200 TT. AToc9ML MC cart.
    Monster HTS 3600 power conditioner
    ADS L1590/2 Biamped
    MIT exps2 speaker cable
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  • cortico
    cortico Posts: 587
    thanks, they all came from m5, for some reason, I prefer the sound is the set with the fabric cone...
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