Dust cap

wispolkboy
wispolkboy Posts: 150
in Vintage Speakers
just picked up these monitor 5's (from 1981 with mw6500 $100)
dust caps have been dented in on both. Before I start trying my methods, has anyone had any good success with a repair (restore) that they can let me know how they did it? d7ngdyzgifjh.jpg
9jy1ymtnw5a0.jpg
M7's 1982 Peerless tweeters
M5's X2 (1981 Peerless tweeters, 1988 with upgraded tweeters)
M4's X2 both with Peerless tweeters
M5Jr with SL1500 (in the garage, they sound great)
M4.6 series2 X2 with upgraded tweeters
SDA 2 with upgraded tweeters
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Comments

  • mlistens03
    mlistens03 Posts: 2,767
    I've had varying success with using a vacuum. I would put the end over the dustcap and then switch it on and off for a second or so. Worked for my Eosones, but didn't do anything to the metal domes on my Monitor Audios I used to have. worth a shot though, and its low risk especially when you're not working with tweeters
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  • wispolkboy
    wispolkboy Posts: 150
    I thought about the vacuum as well, along with a cardboard toilet paper roll. and using my hand over it to control how much suction.
    M7's 1982 Peerless tweeters
    M5's X2 (1981 Peerless tweeters, 1988 with upgraded tweeters)
    M4's X2 both with Peerless tweeters
    M5Jr with SL1500 (in the garage, they sound great)
    M4.6 series2 X2 with upgraded tweeters
    SDA 2 with upgraded tweeters
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  • pitdogg2
    pitdogg2 Posts: 25,436
    edited November 2021
    Vac hose on cap like micah said on/off AFTER hose is on cap.

    Do not try to lift off until there's no suction.
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  • wispolkboy
    wispolkboy Posts: 150
    thanks for the advise...!
    M7's 1982 Peerless tweeters
    M5's X2 (1981 Peerless tweeters, 1988 with upgraded tweeters)
    M4's X2 both with Peerless tweeters
    M5Jr with SL1500 (in the garage, they sound great)
    M4.6 series2 X2 with upgraded tweeters
    SDA 2 with upgraded tweeters
    · Share on FacebookShare on Twitter
  • wispolkboy
    wispolkboy Posts: 150
    thanks Pitdog and mlisten03
    it is much better but not 100%
    the close up one looks better but I thinks someone else tried to do something like I just did because there looks like a slight bend in the speaker itself. (cant see it in the photos)

    sxcdcf9fv734.jpg
    5igk4ho54mto.jpg
    M7's 1982 Peerless tweeters
    M5's X2 (1981 Peerless tweeters, 1988 with upgraded tweeters)
    M4's X2 both with Peerless tweeters
    M5Jr with SL1500 (in the garage, they sound great)
    M4.6 series2 X2 with upgraded tweeters
    SDA 2 with upgraded tweeters
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  • Gardenstater
    Gardenstater Posts: 4,459
    edited November 2021

    If you upgrade to phase plugs (@xschop) you will be removing those dust caps with an Xacto knife anyway :) I know sounds daunting but I will be trying it and will report results when I do.8lq4znrtme4a.jpg
    062exmrfhppt.jpg
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
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  • pitdogg2
    pitdogg2 Posts: 25,436
    They do not always come back and look that nice after being pushed in like yours were. Job well done! Now put the grills on 😉
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  • wispolkboy
    wispolkboy Posts: 150
    Gardenstater wrote: »
    If you upgrade to phase plugs (@xschop) you will be removing those dust caps with an Xacto knife anyway :) I know sounds daunting but I will be trying it and will report results when I do.8lq4znrtme4a.jpg
    062exmrfhppt.jpg

    I think if I tried that I would be off of coffee for a few days and take an extra beta blocker to slow my heart rate down to 45bpm
    Scarry with a knife that close to a mw6500.... 😬🙂
    M7's 1982 Peerless tweeters
    M5's X2 (1981 Peerless tweeters, 1988 with upgraded tweeters)
    M4's X2 both with Peerless tweeters
    M5Jr with SL1500 (in the garage, they sound great)
    M4.6 series2 X2 with upgraded tweeters
    SDA 2 with upgraded tweeters
    · Share on FacebookShare on Twitter
  • wispolkboy
    wispolkboy Posts: 150
    Just hooked them up to my old NAD 3020, sounds nice and warm... Pretty happy that I found them... I am biased towards the peerless tweeters.
    M7's 1982 Peerless tweeters
    M5's X2 (1981 Peerless tweeters, 1988 with upgraded tweeters)
    M4's X2 both with Peerless tweeters
    M5Jr with SL1500 (in the garage, they sound great)
    M4.6 series2 X2 with upgraded tweeters
    SDA 2 with upgraded tweeters
    · Share on FacebookShare on Twitter
  • xschop
    xschop Posts: 5,000
    I was trying to do a search here on the dust cap mold discussion. Can't find, so here's my synopsis... The thin white ring is definitely mold. On the recent drivers that I've removed caps with white rings, there was the same thin white layer of it on the pole-pieces....

    405kbg3waymt.jpg

    Don't take experimental gene therapies from known eugenicists.
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  • F1nut
    F1nut Posts: 50,539
    I believe we established years ago that it's related to the adhesive used to attach the dust covers. Whatever, it comes off with Windex.
    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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  • xschop
    xschop Posts: 5,000
    It came off completely with the scalpel.
    Don't take experimental gene therapies from known eugenicists.
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