Results 1 to 10 of 10
  1. #1
    Forum Regular
    Join Date
    Feb 2004
    Posts
    29

    Speaker stands/Audio tweaks

    I was told that one should put sand or pellets inside speaker stands and also put Blu-tac at the bottom of the bookshelf speaker before placing them on the speaker stands. That this would result in less resonance and improve bass response. Is this true?

  2. #2
    Forum Regular
    Join Date
    Sep 2002
    Location
    Morristown, NJ
    Posts
    237
    Yes, this is true.

  3. #3
    Forum Regular karl k's Avatar
    Join Date
    Feb 2002
    Location
    Wichita, Kansas, N America, Sector 001
    Posts
    254

    Well, it would certainly be better than...

    Quote Originally Posted by junkeroos
    I was told that one should put sand or pellets inside speaker stands and also put Blu-tac at the bottom of the bookshelf speaker before placing them on the speaker stands. That this would result in less resonance and improve bass response. Is this true?
    putting sand/pellets inside the speakers and blutac at the bottom of the stands!
    Karl K.

    The shortest distance between two points is a straight line... in the opposite direction.

  4. #4
    Forum Regular
    Join Date
    Feb 2004
    Posts
    197
    also, lead shot (pellets) may be better since sand can retain moisture. just to be on the safe side.

  5. #5
    Forum Regular
    Join Date
    Nov 2003
    Posts
    1,720
    Quote Originally Posted by junkeroos
    I was told that one should put sand or pellets inside speaker stands and also put Blu-tac at the bottom of the bookshelf speaker before placing them on the speaker stands. That this would result in less resonance and improve bass response. Is this true?

    Just audio nonsense, lots out there. If, you hear the stand resonate, then you dampen it or get better stands.
    Blu tac may help to prevent speakers from falling over too easy if the stand and speaker is not well designed and are unstable.
    Bass response? LOL.
    mtrycrafts

  6. #6
    Suspended
    Join Date
    Dec 2002
    Posts
    236
    Quote Originally Posted by mtrycraft
    Just audio nonsense, lots out there. If, you hear the stand resonate, then you dampen it or get better stands.
    Blu tac may help to prevent speakers from falling over too easy if the stand and speaker is not well designed and are unstable.
    Bass response? LOL.
    I don't know about bookshelf speakers, use of bluetack and their respective stands. However, on a large full range loudspeaker that sits directly on a wood substructure floor or on a thin carpet with thin or no padding, it may be beneficial to decouple the speaker from directly contacting the floor. Otherwise, it is possible to excite some resonances of this structure audibly, usually found around 50-90 Hz in my exposures. This is easily measured for a specific room using an acclerometer attached to the floor, a preamp, sweep generator(connected to amplifier to speakers or alternatively a test tone CD) and DMM with Db meter. In these applications, i usually just make a platform the size of the bottom of the speaker, sit the speaker on this and place layers of carpet and/or foam under the platform until adequate attenuation of the floor excitation is achieved. The lower the Fs of the floor structure, the more layers or thicker material to be used under the platform. This does cause instability, relative to direct coupling to the floor, though.

    -Chris
    Last edited by WmAx; 04-22-2004 at 02:41 AM.

  7. #7
    Forum Regular
    Join Date
    Feb 2004
    Posts
    29

    Question

    Well it looks like some agree and some disagree. Once again, I am left with no answers.

  8. #8
    Forum Regular N. Abstentia's Avatar
    Join Date
    Apr 2004
    Posts
    2,671
    It's quite simple. Yes to the sand in the stands (I prefer aquarium gravel..won't leak out the bottom) and yes to the blue tack. Worst case, it won't hurt a thing.

  9. #9
    Forum Regular karl k's Avatar
    Join Date
    Feb 2002
    Location
    Wichita, Kansas, N America, Sector 001
    Posts
    254

    Is the issue whether it works or...

    Quote Originally Posted by junkeroos
    Well it looks like some agree and some disagree. Once again, I am left with no answers.
    whether you'll hear the difference? For $20 or so, it is worth trying! Bottom line.
    Karl K.

    The shortest distance between two points is a straight line... in the opposite direction.

  10. #10
    Forum Regular
    Join Date
    Feb 2002
    Location
    Linkoping, Sweden
    Posts
    37
    Quote Originally Posted by junkeroos
    I was told that one should put sand or pellets inside speaker stands and also put Blu-tac at the bottom of the bookshelf speaker before placing them on the speaker stands. That this would result in less resonance and improve bass response. Is this true?
    Whilst this may be true, a lot of energy which is lost this way is due to poor enclosure design for the speakers you are mounting.

    I have this "nasty" habit of resting my hand on top of speakers that I'm considering buying. The less vibration I can feel, the better the chances are that they'll make a sale.

    I have very simple satelite stands. A single pipe, filled with sand, and a square plate at each end - one on the floor and one for the speaker to stand on. These particular ones didn't cost me anything. I knew a welder who wanted to have his car radio repaired so we did a swop.

    Some audiophiles may even fill the pipe with concrete and let it set.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Buying PSB? Read This!
    By IAmCanadian in forum Speakers
    Replies: 66
    Last Post: 09-08-2008, 05:55 AM
  2. Review of Bose 901s
    By sam_pro in forum Speakers
    Replies: 21
    Last Post: 06-06-2007, 07:31 AM
  3. Speaker stands/Audio tweaks
    By junkeroos in forum Speakers
    Replies: 0
    Last Post: 04-21-2004, 09:36 AM
  4. resistance is futile? ohm[y] gosh!!
    By Justin Carnecky in forum Speakers
    Replies: 21
    Last Post: 03-10-2004, 05:25 AM

Posting Permissions

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