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Thread: Floor standing speaker supports

  1. #1
    Join Date: Mar 2017

    Location: Norfolk

    Posts: 44
    I'm David.

    Default Floor standing speaker supports

    I've had a pair of B&W 804s' for a few years now and they've always been on the supplies spikes. The lounge floor is carpeted with concrete underneath.

    My question is, would these benefit (as in the sound) from additional support? i.e. Granite blocks or the like.

  2. #2
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 8,439
    I'm AMusicFanNotAnAudiophile.

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    Possibly.
    Experiment - you could try 2p pieces under the spikes.
    Chris



    Once we've made sense of our world, we wanna go fuck up everybody else's because his or her truth doesn't match mine. But this is the problem. Truth is individual calculation. Which means because we all have different perspectives, there isn't one singular truth, is there?

  3. #3
    Join Date: Jan 2009

    Location: Sheffield - UK

    Posts: 6,048
    I'm Mark.

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    Every way you support your speakers will make a clear, and pretty obvious, difference. That includes expensive third party spike options and simple granite slabs. All I can tell you for sure is that you will hear a difference and you will genuinely prefer one over the other. You may end up preferring the expensive spikes and you may prefer the granite slabs. Invest in time and experimentation and then spend your money knowing you’ve got what you want. If you prefer the effect of the expensive spikes buy them - if you honestly prefer the slabs buy them - if you feel you are being influenced by value for money / honestly, don’t buy anything!

    100% Analogue

  4. #4
    Join Date: Apr 2018

    Location: Cornwall

    Posts: 114
    I'm Dominic.

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    Quote Originally Posted by Vanzapp View Post
    I've had a pair of B&W 804s' for a few years now and they've always been on the supplies spikes. The lounge floor is carpeted with concrete underneath.

    My question is, would these benefit (as in the sound) from additional support? i.e. Granite blocks or the like.
    You probably know this already, but the spikes are there to puncture through the carpet to make contact with the concrete floor and keep the speaker coupled to a firm surface. You are effectively connecting the speaker cabinet to a large mass - the concrete floor.

    Plonk speakers directly onto a carpet and they tend to wobble about. Remove the spikes, put the speakers onto a granite slab on the carpet and . . . . . it will wobble about. The wise ones tell us this is rather undesirable because a wobbling speaker acts like the recoil from a gun firing, because as the drivers move there is an equal and opposite force acting on the cabinet, which are then wobbling about while this goes on.

    Max Townshend produces speaker supports that - wobble about, yet the difference they make to sound quality has to be heard to be believed. Touch the speaker cabinet and they flop around quite frerely which really is counter-intuitive to what we have been told for so many years.
    CD player = Vincent
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  5. #5
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 46,065
    I'm Grant.

    Default Floor standing speaker supports

    Got same floor. I use rubber feet. Cheap as chips and do a good job. My carpet is too thick for spikes to get to concrete
    Regards,
    Grant ....

    I've said it before and I'll say it again: democracy simply-doesn't-work
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  6. #6
    Join Date: Mar 2017

    Location: Seaford UK

    Posts: 686
    I'm Dennis.

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    Interesting old chestnut.

    It seems established that spikes couple. (Running shoes, nails in wood). This will allow energy to be sunk away if the mechanical impedance is appropriate, which it probably is not from cabinet to concrete.

    Granite slabs are good because they can present an impedance which is very different from that of the wooden cabinet, and hence stop energy from being transmitted to wooden floors where it may be re-radiated, and make a din. (They are behaving like a concrete floor in this case).

    The 'rocking theory', claimed to lessen transients, is IMO very questionable, especially with substantial speaker weight.

    Mine are 77kg each and I use S/S domes filled with PVC which screw into the bases, and rest on the carpet, on a wooden floor, manipulating that weight with spikes is asking for trouble of one sort or another.

  7. #7
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 36,213
    I'm Geoff.

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    Concrete slabs on rubber blocks will act as an 'energy sink', it takes a lot to make them vibrate. Obviously this principal can be overridden if the speakers are hugely heavy and the weight overcomes the compliance of the rubber blocks.

  8. #8
    Join Date: Aug 2012

    Location: Sunny Portsmouth

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    I'm TheMostHonestPersonYouWillMeet.

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    The best method I used was heavy paving slab with a double layer of some bitumen type flashing on top cut to the correct size for the speaker base and no spikes.. absolutely no movement and I found it worked much better than spikes

    I think it was Bitubond, like this:

    Bev


    Naim CD5XS Through:Black Cat Silverstar 75 To:Naim Dac Through:Naim 5 Pin Din To:Supernait 2 Through:NACA5 To:Living Voice Auditoriums or Rega RS3's or Magneplanar MG1's

  9. #9
    Join Date: Mar 2017

    Location: Norfolk

    Posts: 44
    I'm David.

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    Some great insight and advice, thanks Guys. The speakers weigh 28kg, so not massively heavy, and they're tall. I've seen some supports from Sound City but they are in the USA. They look like they'd increase stability but coupling/de-coupling, don't know. Not sure I'd get away with with concrete slabs in the lounge...I think 'She who must be obeyed' might have have an opinion on that. Experimentation seems to be the answer. I'll have a play.

  10. #10
    Join Date: Aug 2012

    Location: Sunny Portsmouth

    Posts: 6,687
    I'm TheMostHonestPersonYouWillMeet.

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    Quote Originally Posted by Vanzapp View Post
    Not sure I'd get away with with concrete slabs in the lounge...I think 'She who must be obeyed' might have have an opinion on that.
    If you can't get away with concrete slabs then something like this looks very nice:

    https://www.ebay.co.uk/itm/2XSPEAKER...MAAOSwneRXQ2M-

    https://www.ebay.co.uk/itm/2x-Granit...oAAOSw~1FUVd2U
    Bev


    Naim CD5XS Through:Black Cat Silverstar 75 To:Naim Dac Through:Naim 5 Pin Din To:Supernait 2 Through:NACA5 To:Living Voice Auditoriums or Rega RS3's or Magneplanar MG1's

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