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Thread: cloth surround for speakers

  1. #1
    Forum Veteran marcok's Avatar
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    I'm very curious about any tech item

    cloth surround for speakers

    My father's Infinity RS iii speakers need new surrounds . ( simply the age )
    My question is : Can you appreciate the difference between cloth and foam ?
    The advantage is that the cloth is for lifetime .
    I know that is the classic " one million question " but
    I would like to know your opinions .
    Thank you in advance and ciao
    Marco

  2. #2
    Administrator Fast Forward's Avatar
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    It's kind of a toss up Marco I used cloth on my Marantz Imperials , but if you can find foam that is stiff enough it may be easier to deal with. There is a trick to cutting foam evenly Freeze it which stiffens it up, I'll take a few pic of my Imperials and post them for you
    Turning Pristine Audio Gear into Junk One unit at a Time

  3. #3
    Forum Veteran marcok's Avatar
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    https://www.simplyspeakers.com/cloth...edge-kits.html
    I mean something like this .( half cloth / half foam )
    Ten years ago I would have say : foam only , like original .
    Now my "speaker guru "( not my hifi guru ) said to me :
    Trust me, use this type; they are forever . He's a very experienced guy in speaker reparing ( 40 years )
    My hifi guru , on the contrary , has some doubts .
    He always used sorrounds like original .
    The problem is that you modify the compliance and the resonance frequency of woofers .
    Are you able to appreciate the difference ? I don't know .
    For me you can see the difference in a anechoic chamber with a B&K test set , but.....
    Ciao
    Marco

  4. #4
    Administrator Fast Forward's Avatar
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    My Marantz's came with foam covers but they were messed up from years of use and also from a heavy smokers house, so I decided on cloth. I also replaced the foam on the inside, re-coned and re-foamed and even replaced a tweeter
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    Turning Pristine Audio Gear into Junk One unit at a Time

  5. #5
    Forum Veteran marcok's Avatar
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    I think there was a language mismatch ,
    but I simply found the right words in an american site .
    Things that happen !
    Ciao
    Marco

  6. #6
    Forum Veteran Northwinds's Avatar
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    Fondler errrr... fan of all Nav's avatars
    I think he wants surrounds for his Dad's speakers, not grill cloth
    Marcok, I would use whatever material is recommended. Personally I prefer foam surrounds as you get easier excursion rates but cloth does last longer. I have speakers with foam surrounds that are 40 years old almost and still no issues with them. It's all about quality
    "I really can't begin to describe what happens at that frequency when you hit that SPL, but it's serious. We saw a mouse stagger out of a crack in the concrete floor and die"
    Quote Originally Posted by laatsch55 View Post
    Yweblwrs...
    Quote Originally Posted by skynyrd77
    The only toilet I have seen that didnt swirl was in a trailor
    Quote Originally Posted by TheWOPLwhiffer View Post
    now I need a Dim Bulb Tester to test my Dim Bulb Tester
    Quote Originally Posted by lattiboy, post: 11205733, member: 245918
    my eyes were forced shut by the air pressure change
    An audiophile is someone who's stereo is worth more than his car

  7. #7
    Forum Veteran marcok's Avatar
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    Quote Originally Posted by Northwinds View Post
    I think he wants surrounds for his Dad's speakers, not grill cloth
    Marcok, I would use whatever material is recommended. Personally I prefer foam surrounds as you get easier excursion rates but cloth does last longer. I have speakers with foam surrounds that are 40 years old almost and still no issues with them. It's all about quality
    Generally the life span of foam is 10 / 12 years .
    40 years looks very high . Are you sure that is foam ? There is also rubber ( B & W some models ) and silk ( Klipsch some models ) .
    Which speakers do you mean ?
    Ciao
    Marco

  8. #8
    Forum Veteran Northwinds's Avatar
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    Fondler errrr... fan of all Nav's avatars
    They are the woofers out of Realistic T-200s that I transplanted into my Bose 501's used in the garage. They are indeed at least 40 years old as I bought the speaker set brand new in 1983, definitely not rubber or silk surrounds

    Original cabs are long gone now but they looked like this until I damaged one cab bad in a move and scrapped them


    http://www.hifiengine.com/files/imag...0(584x600).jpg
    "I really can't begin to describe what happens at that frequency when you hit that SPL, but it's serious. We saw a mouse stagger out of a crack in the concrete floor and die"
    Quote Originally Posted by laatsch55 View Post
    Yweblwrs...
    Quote Originally Posted by skynyrd77
    The only toilet I have seen that didnt swirl was in a trailor
    Quote Originally Posted by TheWOPLwhiffer View Post
    now I need a Dim Bulb Tester to test my Dim Bulb Tester
    Quote Originally Posted by lattiboy, post: 11205733, member: 245918
    my eyes were forced shut by the air pressure change
    An audiophile is someone who's stereo is worth more than his car

  9. #9
    Forum Veteran marcok's Avatar
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    O.K.
    Ron .
    Probably the life span depends on sunlight exposure ,too . In a normal living room there the windows ,
    while in a cave or a garage you have less sun light .
    If I have understood well the worst enemy of foam is the sunlight .
    Anyway the last surround replacement was made 10 years ago ( expected MTBF )
    Thank you and ciao
    Marco

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