oh no polydome going

Discussion in 'Infinity Loudspeakers' started by pharoah, May 11, 2018.

  1. 7.62

    7.62 Gearhead Subscriber

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    I purchased the drivers you linked, for my original pair of Kappa 8's. They are louder than the original and even with the dial in the back if you have one it will not help, the one on the back of the crossover. also they will not fit on your original polydome holes without modification.

    The screw pattern is not the same, its tighter than the original, which means your four screws are going in at an angle to find the original.

    And your original domes the + / - are across from eachother, the new one thay are on the same side, that means your going to have to cut one side or the other on the cabinet to get both wires to fit on the same side, or bend and possibly break the new driver forcing them into the cabinet.

    It's not a bad thing, your ear gets used to it i guess In my humble opinion the simply speaker unit was poorly designed, but a quick fix.

    Somewhere in this forum I do believe I posted pictures of how tough it was to use these in my Kappa 8 speakers.
     

     

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  2. StimpyWan

    StimpyWan AK Subscriber Subscriber

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    Did you purchase the Simply Speakers Scan Speak/Vifa dome, or the Midwest Speakers reproduction? I just want to be clear on which dome to avoid! :cool:
     
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  3. pharoah

    pharoah Active Member

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    287
    wow I like the sound (pun intended) of what your doing.i may just wait for these to be ready.its not like I have nothing else to listen to.
     
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  4. BrianLW

    BrianLW New 'Hood' Subscriber

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    How long did it take for the original polydome material to start deteriorating, on average?

    If that was a short time, can the original composition be tweaked chemically, so that doesn't happen, while still retaining the original sound?
     
  5. pharoah

    pharoah Active Member

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    287

    I guess it can vary.the speakers I have are circa 1987,and its 2018.so it took roughly 31 years for mine.
     
  6. pharoah

    pharoah Active Member

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    287

    that's really good info thank you.
     

     

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  7. pauljh

    pauljh Active Member

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    It also depends on the environment the speakers have been in. Not all foam surround woofers of a certain age need refoaming.
     
  8. TomBig58

    TomBig58 AK Subscriber Subscriber

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    Location:
    Chicago
    With a pair of RS Kappa 6 on the hook I am following this thread closely.

    SW it seems he used the Simply Speakers M-330 6ohm based on his terminals description and pics from the ad. The Midwest Speakers mids show terminals on both sides and in 4 0r 8 ohm. The 4 ohm model could be the ticket. They seem pretty newly released it would be nice to get some input on them.
     
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  9. 7.62

    7.62 Gearhead Subscriber

    Messages:
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    Location:
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    Yes, it's been awhile now but the Vifa/part number from SS. I sold them off as soon as I found an original pair locally and quickly replaced them. Along with original crossovers, as I didn't care for the eBay crossovers either, while easier to drive something was lost in the sound compared to the original Kappa 8 crossover.
     
  10. Bahamayellow

    Bahamayellow Well-Known Member

    Messages:
    631
    Hey 7.62 you had some Kappa 8s what happen to them.
     

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