"grounding driver baskets"

VR3VR3 Posts: 23,486
edited August 25 in DIY, Mods & Tweaks
So in my trolling the internet for random knowledge, I came across the mention of grounding a speaker basket to ground. In different places, one person suggested actually grounding the basket to a ground plug on a standard outlet, which, sounded a little crazy.

Another site said tying a basket into the ground of the speaker circuit had benefits.

The benefits supposedly was in shielding of the voice coil.

Honestly, this sounds a little out there to me but perhaps the Polk collective has direct experience ewith such endeavors.
- Not Tom

"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro

Comments

  • FestYboyFestYboy Posts: 3,737
    That's not how shielding works... So right off the bat, you're being fed BS. "Grounding " the basket might actually induce noise into the ground plane of the amp and I cannot see there being any benefit to that.
  • F1nutF1nut Posts: 42,966
    FestYboy wrote: »
    That's not how shielding works... So right off the bat, you're being fed BS. "Grounding " the basket might actually induce noise into the ground plane of the amp and I cannot see there being any benefit to that.

    I agree.
    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."


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  • westmassguywestmassguy Posts: 6,448
    FestYboy wrote: »
    That's not how shielding works... So right off the bat, you're being fed BS. "Grounding " the basket might actually induce noise into the ground plane of the amp and I cannot see there being any benefit to that.

    You're essentially opening a back door for a whole lot of EMI and possibly RF noise that was never there.
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  • mhardy6647mhardy6647 Posts: 23,454
    edited August 26
    I can't think of a good reason to ground the basket, and (more than) a century of loudspeaker design* certainly hasn't standardized it as a 'best practice' :#

    There's all kinds of crazy 5#!t on the internet, you know?
    Remember what "Honest Abe" Lincoln said.

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  • VR3VR3 Posts: 23,486
    That's what I thought, but sometimes when you read enough stupid you begin to question your intelligence haha
    - Not Tom

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • mhardy6647mhardy6647 Posts: 23,454
    VR3 wrote: »
    That's what I thought, but sometimes when you read enough stupid you begin to question your intelligence haha

    Yeah, like chemtrails and scalar energy...

    B)
  • FestYboyFestYboy Posts: 3,737
    Holy crap guys, I just found out that the world is FLAT!!!
  • VR3VR3 Posts: 23,486
    Thats strange, I thought it was a pyramid
    - Not Tom

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • pitdogg2pitdogg2 Posts: 14,715
    FestYboy wrote: »
    Holy crap guys, I just found out that the world is FLAT!!!

    With a marshmallow middle

    rookie :D
  • kharp1kharp1 Posts: 3,392
    pitdogg2 wrote: »
    FestYboy wrote: »
    Holy crap guys, I just found out that the world is FLAT!!!

    With a marshmallow middle

    rookie :D

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  • mhardy6647mhardy6647 Posts: 23,454
    FestYboy wrote: »
    Holy crap guys, I just found out that the world is FLAT!!!
    VR3 wrote: »
    Thats strange, I thought it was a pyramid
    pitdogg2 wrote: »
    FestYboy wrote: »
    Holy crap guys, I just found out that the world is FLAT!!!

    With a marshmallow middle

    rookie :D

    It's a darned good thing y'all've got a scientist here to set the record straight.

    ahem.

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  • K_MK_M Posts: 1,519
    Use one drop of snake oil, works better!
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  • DSkipDSkip Posts: 16,216
    If you can mechanically ground the basket, there might and should be benefits there. I don’t see any benefits for electrical grounding though.
  • BlueFoxBlueFox Posts: 12,180
    Okay, I admit it. I am getting old. What the heck is a speaker basket? :)
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  • F1nutF1nut Posts: 42,966
    It's what supports the motor, cone and allows the driver to be mounted on the cabinet.
    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

  • BlueFoxBlueFox Posts: 12,180
    Okay. Is there a picture that shows this?
    Bud - Silicon Valley

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  • F1nutF1nut Posts: 42,966
    Yeah, type in speaker basket.
    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

  • pkquatpkquat Posts: 677
    This is NOT the speaker basket F1nut is talking about. But it is some good humor.

    https://www.amazon.com/dp/B000MMVGZE

    One could also mount a free air speaker in a wicker basket hanging from the ceiling to create a speaker in a basket in a basket. Would that be a speaker in a 2x basket or speaker in a basket² ?
  • mhardy6647mhardy6647 Posts: 23,454
    The basket is the frame.

    cheap baskets.

    24954728816_f936ba3f96_b.jpg010 by Mark Hardy, on Flickr

    44562453875_b1f478420e_b.jpgDSC_3243 (2) by Mark Hardy, on Flickr


    32805517572_e444011b39_b.jpg
    DSC_7032 (2) by Mark Hardy, on Flickr

    stamped metal (steel, usually)
    (amusingly, all three of the drivers shown above were/are pretty good to very good sounding ones, despite their cheesy construction values)

    not so cheap baskets.

    33094025335_7680d17478_b.jpgDSC_7165 (2) by Mark Hardy, on Flickr

    14831555306_476c68b534.jpglater EV SP12B by Mark Hardy, on Flickr

    25977558672_c3929e3e67_b.jpgDSC_5736 by Mark Hardy, on Flickr


    cast aluminum or alloy
    (these are pretty good ones, too ;) )

    It actually does (or, at least, it can) matter -- a cheap, flimsy stamped basket is very resonant and doesn't provide stable alignment of the moving parts of a driver with the stationary parts. A cast basket is (should be!) much better in both respects.

    Modern drivers often use plastic, or composite, baskets that are (or, at least, that can be) strong, light, and 'precise' in construction and alignment. Relatively cheap, too ;) (the baskets, that is, not necessarily the finished drivers!)

  • tonybtonyb Posts: 31,642
    Never heard of such a ridiculous idea. Does this dude eat Tide pods too ? :D
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  • decaldecal Posts: 3,181
    Sounds like a ground loop hum waiting to happen.
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  • VR3VR3 Posts: 23,486
    Tannoy actually produced speakers with this built in

    ru6759oitzab.jpg
    - Not Tom

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
  • nooshinjohnnooshinjohn Posts: 21,501
    VR3 wrote: »
    Tannoy actually produced speakers with this built in

    ru6759oitzab.jpg

    And you trust the Brits with electronics?
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  • mhardy6647mhardy6647 Posts: 23,454
    And you trust the Brits with electronics?

    Lucas.
    Prince of Darkness.

    s3uqost21iqp.png
  • Viking64Viking64 Posts: 4,395
    VR3 wrote: »
    Tannoy actually produced speakers with this built in

    ru6759oitzab.jpg

    And you trust the Brits with electronics?

    I certainly don't trust them with brake fluid. :p
  • txcoastal1txcoastal1 Posts: 10,624
    mhardy6647 wrote: »
    And you trust the Brits with electronics?

    Lucas.
    Prince of Darkness.

    s3uqost21iqp.png

    Would that be the likes of liquid smoke ?
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  • mhardy6647mhardy6647 Posts: 23,454
    txcoastal1 wrote: »
    mhardy6647 wrote: »
    And you trust the Brits with electronics?

    Lucas.
    Prince of Darkness.

    s3uqost21iqp.png

    Would that be the likes of liquid smoke ?

    I guess that would be what one use for British Style Barbecue.

    B)
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