+ Reply to Thread
Page 2 of 2 FirstFirst 12
Results 11 to 13 of 13

Thread: Vibration Isolation Info

  1. #11
    Join Date: Mar 2017

    Location: Seaford UK

    Posts: 1,861
    I'm Dennis.

    Default

    Your results are interesting Neil, and somehow I feel that we are fed ideas without verification by the market.

    My speakers weigh 77kg and are have an MDF base of 1.5" thickness. They are 20" front to back by 17", and are resting on new carpet (non foam) pile. What is your opinion on that arrangement? I have bought S/S domes to screw into the bases which were originally designed for spikes, but you can imagine 77kg on spikes into a wooden floor? I really wonder at the need for even the domes.

    That arrangement is interesting Clive, but arguably the main transient power is in the harmonics, this being felt when in phase with the fundamentals. Yours remind me of the Celestion 6000 woofers, but they were bipole and not dipole like yours. I remember the Hi-Fi News write up on the ideas behind the resulting smooth bass response.

  2. #12
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 99,005
    I'm Grant.

    Default

    The movement should equal out at a guess. Interesting idea
    Regards,
    Grant .... ؠ ......Don't be such a big girl's blouse

    I've said it before and I'll say it again: democracy simply-doesn't-work
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    FIIO K7 BT, M11 PLUS, BTR7, KA5 - OPPO BDP-103D - PANASONIC UB450 - PANASONIC 4K ULTRA HD TV - PIXEL 6 - AVANTREE LR BLUETOOTH - 2* X600 SOUNDCORE - HEADPHONES INCLUDE, FIIO, NURAPHONES', FOCAL, OPPO, BOSE, CAMBRIDGE, BOWER & WILKINS, DEVIALET, MARSHALL, SONY, MITCHELL & JOHNSTON - 2*ZBOOK'S- MERCURY BD ROM, ROON, QOBUZ, TIDAL, PLEX, CYBERLINK, JRIVER - MULTI HDD'S -

    Oh my god! There's nothing wrong with the bidet is there?

    “Nothing discloses real character like the use of power. It is easy for the weak to be gentle. Most people can bear adversity. But if you wish to know what a man really is, give him power. This is the supreme test. It is the glory of Lincoln that, having almost absolute power, he never abused it, except on the side of mercy".

    “You see these dictators on their pedestals, surrounded by the bayonets of their soldiers and the truncheons of their police ... yet in their hearts there is unspoken fear. They are afraid of words and thoughts: words spoken abroad, thoughts stirring at home -- all the more powerful because forbidden -- terrify them. A little mouse of thought appears in the room, and even the mightiest potentates are thrown into panic.”

    "You don't have free will. You have the appearance of free will.”

    “There's a war out there, old friend. A world war. And it's not about who's got the most bullets. It's about who controls the information. What we see and hear, how we work, what we think... it's all about the information!”


    ***SMILE, BE HAPPY***

  3. #13
    Join Date: Apr 2008

    Location: Warrington

    Posts: 3,451
    I'm Neil.

    Default

    Quote Originally Posted by Pharos View Post
    Your results are interesting Neil, and somehow I feel that we are fed ideas without verification by the market.

    My speakers weigh 77kg and are have an MDF base of 1.5" thickness. They are 20" front to back by 17", and are resting on new carpet (non foam) pile. What is your opinion on that arrangement? I have bought S/S domes to screw into the bases which were originally designed for spikes, but you can imagine 77kg on spikes into a wooden floor? I really wonder at the need for even the domes.

    That arrangement is interesting Clive, but arguably the main transient power is in the harmonics, this being felt when in phase with the fundamentals. Yours remind me of the Celestion 6000 woofers, but they were bipole and not dipole like yours. I remember the Hi-Fi News write up on the ideas behind the resulting smooth bass response.
    You’re right, those are some heavy-ass speakers, even with the most appropriate Sorbothane I could find, 4x spheres would support 40kg, so you would need 8x under each speaker... and even then what a ballache to site.

    From what I can see, perhaps the Auralex Gramma would be more appropriate, if at all...
    Mana Acoustics Racks / Bright Star IsoNodes Decoupling >> Allo DigiOne Player >> Pedja Rogic's Audial Model S DAC + Pioneer PL-71 turntable / Vista Audio phono-1 mk II / Denon PCL-5 headshell / Reson Reca >> LFD DLS >> LFD PA2M (SE) >> Royd RR3s.

+ Reply to Thread
Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •