Coffee spills on vintage woofers?

cnh
cnh Posts: 13,284
edited September 2011 in Vintage Speakers
I was wondering if anyone knew what effect minor coffee spills/stains would have on a vintage Stiff paper woofer..let's say 30 years old?

Would it affect the general integrity of the cone or its sound if the spill was years old? Am eyeing a pair of speakers with some minor stains on one woofer.

Is there a way to clean that?

Thanks!

cnh
Currently orbiting Bowie's Blackstar.!

Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
[sig. changed on a monthly basis as I rotate in and out of my stash]
Post edited by cnh on
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  • heiney9
    heiney9 Posts: 25,165
    edited September 2011
    Pour a little cream and sprinkle a little sugar and it should be just fine :biggrin:


    Sorry, but I don't know. If this was done a long time ago and you see no adverse affects, then it's probably fine. If it was going to cause an issue, I'd think you'd notice it by now.

    Just my .02c

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • inspiredsports
    inspiredsports Posts: 5,501
    edited September 2011
    cnh wrote: »
    I was wondering if anyone knew what effect minor coffee spills/stains would have on a vintage Stiff paper woofer..let's say 30 years old?

    Would it affect the general integrity of the cone or its sound if the spill was years old? Am eyeing a pair of speakers with some minor stains on one woofer.

    Is there a way to clean that?

    Thanks!

    cnh

    Are we sure it's coffee ??

    I don't think it would hurt much if it happened just once and dried quickly. Long-term or repeated soaking would eventually weaken the fibers and could affect the glue joint, but one short-term episode should not be a problem.

    How do the speakers sound?

    P.S.: I do not think I would try to clean it as that would probably do more harm than good.
    VTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
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  • cnh
    cnh Posts: 13,284
    edited September 2011
    Good one, Brock. I usually do take a pinch of sugar and some cream!

    I haven't heard these yet. Probably in the next couple of days. The owner claims they're fine and identifies the spill as coffee. Just a few scattered spots on one woofer (near the outer woofer, closer to the surround) and its grill! Probably years ago and dried now.

    Thanks!

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • inspiredsports
    inspiredsports Posts: 5,501
    edited September 2011
    cnh wrote: »
    Good one, Brock. I usually do take a pinch of sugar and some cream!

    I haven't heard these yet. Probably in the next couple of days. The owner claims they're fine and identifies the spill as coffee. Just a few scattered spots on one woofer (near the outer woofer, closer to the surround) and its grill! Probably years ago and dried now.

    Thanks!

    cnh

    Not to be too blunt, sometimes the woofer gets the brunt of the worst pets have to offer. That's why I asked.
    VTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
    Conrad Johnson PV-5 w/mods
    TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
    Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
    Tuners w/mods Kenwood KT5020 / Fisher KM60
    MF x-DAC V8, HAInfo NG27
    Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
    PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
    Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
    NAD SS rigs w/mods
    GIK panels
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  • cnh
    cnh Posts: 13,284
    edited September 2011
    No problem there. Something to think about for sure, but the guy seems OK. Not sure how I would distinguish a pet accident from coffee stains. lol

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • chandler9a
    chandler9a Posts: 878
    edited September 2011
    I'm in the coffee business but don't know the exact affect of coffee and its properties on paper woofers. I would say if it was just a spill and dried it would be fine. you never know though.
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  • ShadesPG
    ShadesPG Posts: 89
    edited September 2011
    decaf or regular?

    decaf should be fine but the regular may effect the lows
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  • thsmith
    thsmith Posts: 6,082
    edited September 2011
    What speaker, I would think the vintage mw65xxs could handle it.
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  • cnh
    cnh Posts: 13,284
    edited September 2011
    It's an old ADS-type with the Stifflite woofers. So untreated surface. They're not like the Polk 'doped' drivers?

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • DON73
    DON73 Posts: 516
    edited September 2011
    One time spill won't hurt. Soaking might but these cones are very durable. I would want to see for myself before I bought them. Which "old" ADS speaker is it?
    TO ERR IS HUMAN. TO FORGIVE IS CANINE.
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  • cnh
    cnh Posts: 13,284
    edited September 2011
    L420s (bookshelf).

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • kolbywhite28
    kolbywhite28 Posts: 49
    edited September 2011
    i hope you just spilled less than a half of your coffee mug..else it's gonna be a biggie..
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