Home Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

[ Follow Ups ] Thread: [ Display  All  Email ] [ Tweakers' Asylum ]
[ Alert Moderator ] [ Edit ] [ Delete ]

Re: Seismic Isolation for Loudspeakers (Bound and Gagged No More!)

205.138.22.103

Hi Barry,

"Where did anyone say anything about lateral motion exceeding vertical?"

What I was referring to is that most floors move much more up and down than side to side, and these hip joints would only be effective in the lateral plane (for their inteneded purpose, mind you!).


"As to the benefits, they are there to be heard, they are many and they are not at all subtle. If this raises some kind of dissonant response, I can understand, having subscribed to the conventional wisdom about rigid speaker mounting for decades."

Actually, it seems that it is a fairly rigid mount. I don't know exactly what you did, so I can say for sure, but it sounds like it is effectively rigid with respect to the speaker.

And as to the benefits, well, I cannot argue there. I will agree that there is no universal "best" when it comes to almost anything, as there are too many variables to be considered. I, for instance, would not try and isolate my speakers from my basement concrete floor. Someone with an aging suspended wooden floor might benefit immensly from isolation. So I can't possibly argue against your findings.

I may not fully understand what you have done, and I don't know all the other factors, but in my opinion, it seems like there wouldn't be much seismic vibrations, unless you live in a very high-rise apartment where the building actually sways. Do you have a specific source of seismic vibrations that you are trying to isolate from?

I'm also struggling to understand why you would want to isolate the speakers from these seismic vibrations. This seems to be the exact opposite of what you would want to do - please let me explain: If the earth is moving your house, or you're in a high-rise apartment, etc., the objects in your room would not move relative to each other (let's assume they're pretty rigidly mounted and not able to slide around). Assuming the hip joint isolates properly from these seismic vibrations, what you would effectively do is make the speaker move - relative to you. So unless you isolate your chair from these seismic vibrations in exactly the same manner (which would be tough given the different loads involved), you are actually creating a source of movement, and effectively dopplar shifts, frequency response shifts, and possibly phase shifts.

Now keep in mind I am not questioning your findings, Barry, only your reasoning.

AM


This post is made possible by the generous support of people like you and our sponsors:
  Atma-Sphere Music Systems, Inc.  

Follow Ups Full Thread
Follow Ups
You can not post to an archived thread.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]