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Thread: Equipment Cones, Spikes, Feet and Pads.

  1. #11
    Join Date: Sep 2009

    Location: Derbyshire

    Posts: 9,228
    I'm Josie.

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    Hmm.. it can be confusing. Even some manufacturers don't seem to know the difference either.
    Ultrafide U500DC power amplifier - Croft Vitale )highly modified) - TRIO L-07D Turntable - Denon DL103C1 - Funk Firm Houdini - Lentek MC head amp - 15" Tannoy Monitor Gold Loudspeakers in Lockwood Major cabinets (From Trident Studios) - Tannoyista SPEC 3 Custom Crossovers - VanDamme Black Speaker Cable


    Tannoyista.com

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  2. #12
    Join Date: Oct 2008

    Location: Glasgowshire

    Posts: 9,656
    I'm Gary.

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    Hit your equipment with a sock covered hammer whilst hooked up to an oscilloscope.
    Any changes?


    Good info Geoff in your first post.
    Last edited by Gazjam; 17-02-2018 at 18:36.

  3. #13
    Join Date: Apr 2009

    Location: Melbourne

    Posts: 166
    I'm Alex.

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    Made some cast iron feet to put under my valve amplifier. There was an audible difference to the overall sound.
    Attached Images Attached Images
    Last edited by maxrob200; 22-02-2018 at 02:11. Reason: typo

  4. #14
    Join Date: Apr 2015

    Location: Central Virginia

    Posts: 1,736
    I'm Russell.

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    Microphonics on tubed equipment is a known source of distortion. However small it may be. Back in the 50’s the tubed electronics in the nose of jet planes were going haywire due to the vibrations of the plane. Readouts in the dash were jumping all over the place, so they invented dampened, spring loaded mounts for the electronics to stop this problem. And it worked. Hopefully your stereo isn’t jumping like a jet plane! But it does prove that it is possible for air born vibrations to affect your sensitive gear.

    Russell

  5. #15
    Join Date: Apr 2009

    Location: Melbourne

    Posts: 166
    I'm Alex.

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    The great thing is that the DIY feet made more improvements than some expensive isolation cones that I had from a previous system. I read about the dampening properties of high carbon cast iron (which is the cheapest cast iron type). Cast iron plates are used to dampen vibrations in factory machinery and some high end stands and isolation device vendors are now using cast iron in their components.
    Being a cheapskate I used some cast iron trolley wheels, removed the bolts and they became feet! The wood discs are furniture castors.
    All up Aud$20 for a worthwhile experiment

  6. #16
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 1,250
    I'm Chris.

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    Quote Originally Posted by Macca View Post
    There's a bloke who did test this by measuring the output of amps, DACs and transports while subjecting them to vibration. There was no change in the output whatsoever.
    But we all know that many qualities of sound cannot be measured, merely heard and enjoyed.
    Source
    SW1X Universal Music Server UMS I Signature with Power Supply Unit PSU I Signature
    SW1X USB II
    SW1X DAC III Special
    Audiolab 6000 CDT transport
    Amps
    Pre amps -- Hi fi Collective twin mono ladder stepped attenuator, with Charcroft Z-foil and silver wired. And First Watt B1 active no gain buffer.
    Power amps -- Welborne 45 SET monoblocks 1.8W / Decware Taboo 6W / Elekit 300B TU-8600SVK plus further improved components 9W / ICE Power 1000W
    Speakers
    Highly modified Endorphin P17 open baffle speakers containing both vintage and modern alnico drivers and paper cones. All silver wired - 8" Cube Audio FC8 full range drivers and vintage 15" Altec VOTT 416 bass drivers. All sat on Townsend Audio Podium seismic isolation platforms.
    BK Electronics XLS400FF Sub.
    Cabling
    Silver mains cables, interconnects and speaker cables by SW1X
    Headphones
    HRT HeadStreamer and SennHeiser HD650 headphones

  7. #17
    Join Date: Jan 2009

    Location: Deleted

    Posts: 6,585
    I'm Deleted.

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    A friend once designed a valve phonostage that was so microphonic you could hear people speaking in the same room! However, as with a lot of valve gear, it was the valves themselves that were microphonic, changing what it was sat on didn’t stop this and they were picking up vibrations directly from the air. Of course, most valve gear is nothing like as microphonic as this.
    Account Deleted

  8. #18
    Join Date: Oct 2017

    Location: Ontario, Canada

    Posts: 791
    I'm Svend.

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    Quote Originally Posted by maxrob200 View Post
    The great thing is that the DIY feet made more improvements than some expensive isolation cones that I had from a previous system. I read about the dampening properties of high carbon cast iron (which is the cheapest cast iron type). Cast iron plates are used to dampen vibrations in factory machinery and some high end stands and isolation device vendors are now using cast iron in their components.
    Being a cheapskate I used some cast iron trolley wheels, removed the bolts and they became feet! The wood discs are furniture castors.
    All up Aud$20 for a worthwhile experiment
    Great tip on the trolley wheels Alex. Thanks for sharing that.

  9. #19
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 37,772
    I'm Martin.

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    Quote Originally Posted by bumpy View Post
    But we all know that many qualities of sound cannot be measured, merely heard and enjoyed.
    The more I get into this hobby the more I think that probably isn't true. I mean we can all tell a poor sounding system from a good one. But once the sound is good it starts being more a matter of personal choice and psychology. A lot of psychology. The one exception to that is imaging. Some good systems image absolutely unbelievably well, and some don't. But I think the reasons for that are verifiable and have nothing to do with whether or not you have isolated your laptop with stillpoints.

    I go to the odd show and you see these systems with racks costing several grand, isolation platforms and feet under everything, cable lifters, the works. And the sound is poor. Then you go in another room where they have used none of that, just plonked it all on a table and hooked it up. And it sounds great.

    I should have added valve components to my list of things that will benefit from isolation from vibration, bit of an oversight on my part there. When I had a valve phono stage I did use some Audio Technica sprung feet under it. Although I couldn't tell the difference and if I didn't already have the feet (part of a job-lot eBay purchase) I wouldn't have gone out and got any.
    Current Lash Up:

    TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > JM Labs Focal Electra 926.

  10. #20
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,624
    I'm Geoff.

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    I know what you mean. You can tour a Hi-Fi show and hear lots of set-ups that sound accurate, detailed and revealing with no nasties. But occasionally you visit a stand or room where the music comes to life. The difference is very obvious and few displaying makers seem to achieve this. Amongst others, I recall experiencing this at displays by Avant Garde, Spendor, C R Developments and of course Tannoy (even though the TD series I heard years ago was a bit grim.

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