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  1. #1

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    Feb 2006

    Default Equipment - Age effects??

    Hey All,

    Had some Infinity Kappa 6.5 3-ways (with the wonderful EMIT ribbon tweets!) laying around from many years back, been thinking about putting them in the wifes car for some time. She could care less about quality sound, but it's torture for me when we head out in her car. Well, today I decided to do something about that and throw them in. Nope, not happening!! The surrounds appeared fine, but when I touched them they basically turned to mush under my finger pressure. Yep, not a happy boy! Got me thinking though, so I thought I'd throw some question out at you guys.

    1) What is a normal life span for speakers? Ones which are not driven to extremes, but simply used the way they are ment to be.
    2) How do you recommend speakers be stored?
    3) How about amps? I have a Soundstream reference 405s which I just pulled out of my last car, and a very "old-school" Soundstrean mono D-200 (not used for years) which I am now concerned about. Do amps degrade when in storage? Any special storage conditions I should be aware of?

    Any answers/comments/suggestions welcome. Might wind up saving me, and everybody else, some classic equipment in the process.


  2. #2

    Member Sales Rating: (4)

    Join Date
    Aug 2002


    The reason your surrounds disintegrated when you touched them is because they're foam surrounds, which deteriorate with time. You will not have that problem with rubber surrounds found on all Polk speakers.
    Ludicrous gibs!

  3. #3

    Member Sales Rating: (0)

    Join Date
    Dec 2003
    Chattanooga, TN


    Yup. Rubber surrounds last a lot longer.

    Amps could last virtually forever provided theyre kept out of the elements and honestly, there is no reason speakers couldnt last just as long. My dad has several speakers in his house that are 40+ years old and still work fine. Bought em back in the early 60's when Jensen was the ****!
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D

  4. #4

    Member Sales Rating: (0)

    Join Date
    Nov 2003
    Dayton, OH


    and as far as amps go, they should be completely fine
    It's not good, very fundamentally simply not good. - geolemon

    "Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs

  5. #5

    Member Sales Rating: (0)

    Join Date
    May 2004
    San Diego, Ca


    I was bumping with Jensen amps back in the day :).

    The amps should be fine.
    Alpine: CDA-7949
    Alpine: PXA-H600
    Alpine: CHA-S624, KCA-420i, KCA-410C
    Rainbow: CS 265 Profi Phase Plug / SL 165
    ARC Audio: 4150-XXK / 1500v1-XXK
    JL Audio: 10W6v2 (x2)
    Second Skin

  6. #6

    Member Sales Rating: (0)

    Join Date
    Jan 2006


    Anything has a finite life span and nothing will last forver. Solid State electronics
    if stored in good condition in a good environment should last 30 or so years
    without incident. The main time related failure in an amplifier would be the
    on board capacitors. A capacitor is essentially a fast response battery, they
    use carbon, foil and acid very similar to any other battery and due to that fact
    they can and will decay over decades.

    Most hard core vintage guys will tell you on audio equipment that's 40+ years
    of age that all the capacitors should be replaced. The rest of the circuitry
    which consists of Resistors, Diodes, Relays and Fet's should last indefinatly
    as long as they are not exposed to conditions outside their respective realm
    of tolerance EG: + 200 Degrees -10 Degrees or so..

    Speakers can also last a life time but they do require care. Foam surround
    speakers have come a long way "technologically" where the foams used today
    have built in UV Inhibators, built in antifungal solutions etc. Foam from 10
    years ago didn't have as much protection from the elements that cause the
    foam to break down. That doesn't stop people from rebuilding a good foam
    surround speaker, just talk to old Acoustic Research owners who will go to
    the Nth degree to rebuild the drivers used in the old AR9's and such.

    Also remember that high humidity is the enemy of anything electronic. You
    do not want to store speakers in high humidity becuse it can cause rust and
    oxidization of the voice coil and voice coil formers, it can cause pulp or hemp
    based cones to warp and deteriorate, cause foam surrounds to crumble and
    cause glues used to flake.

  7. #7

    Member Sales Rating: (0)

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    Feb 2006


    Thanks for the info everyone. Much appreciated! Guess I'll be handing down my amps to the grand kids as family heirlooms.

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