Vibration isolation or absorption?


You see those pointy things at the bottom of a speaker that are very very sharp.  Arguably a weapon in the wrong hands.  And then you see those same pointy things inserted into a disk.

So the pointy things, aka ‘spikes’ , can Channel vibration elsewhere and away from the components and speakers, or they can isolate it.

Seems channeling vibration away from a component/ speaker, which I guess is absorption, is preferable.

Is this true? And why do they keep saying isolation.

 

emergingsoul

Hello everyone,

 

Hello everyone,

 

My name is Ray Petro. i’ve been a member here now for about four years. I decided three years ago that I wanted to start a little speaker business. It’s called Blueprint Acoustic. I hope you’ll come by and see my products atblueprintacoustic.com. We offer a spring foot package for all the different speakers that we manufacture. this is not very hard to figure out. It’s probably around eighth grade math. I buy my Springs from a place called Century Spring somewhere in California. They have a calculator that shows you exactly what you need. All you need to do is his weigh the speaker, then divide by four. The only other numbers you’ll need is the diameter of the spring and the open length. I use an inch and a quarter or an inch and a half diameter spring bye a 3 inch open length. The only other number you need is what they call the half length I think. They have an awesome website that has a real time chart with their inventory that tells you what’s in stock and helps you figure out the half length of the spring, which is where you want it to be resting at .  Here’s a link to the chart on their website. https://www.mwcomponents.com/century-spring/shop/compression-springs  The only other thing you need is a little bit of heat shrink tubing. You can find this on Amazon. They even have lots of colors if you want to accent your speaker. So, I’m not crazy, it works like a charm, just like the Townshend’s, but at about 1/10 of the price. If you have some time stop by my website and check out some of my other crazy ideas. I’m working on my new show room which will be in Cleveland Ohio if anybody wants to hear some of my new designs , I’ll post everything next month when we’re all done . And I just like to say, I swear my speakers sound awesome.. If anyone would like to try a set, I was going to make an announcement here sometime soon that I was looking for some reviews. If you’d like to try a set, send me a message and let’s discuss what you’re looking for. Thanks everyone! Ray. 

 

 

It’s amazing how that if a bunch of people believe that it’s not true then I guess it’s not true??? !! When I first came on this forum, I got into it with millercarbon about this exact same thing. Except I couldn’t explain it as good as the fellow above. He really did a good job explaining how it all works. Somewhere inside of me I knew it didn’t work from my sixth grade science class. I wonder how much other stuff in audio that everybody thinks is truth will turn out to be false in a future ?   I guess I better sell my stock in still points.

@emergingsoul 

Last year I broke down and bought two sets of Isoacoustics Gaia Ones for my KEF, Reference Five speakers and the difference between the spikes and the Gaia’s was night and day spectacular.  I put some pucks from the same company under my DAC and heard nothing.  I put some pucks from the same company under my amp and maybe I heard a difference.  

So much information herein.

I had come to believe that vibration that contaminates a drivers performance is not good. So if you’re speaker cabinet is vibrating and detrimentally impacts the drivers it makes sense this is not a good thing. So don’t you want to draw that vibration away and channel it somehow into a bottomless pit. Shouldn’t the pointy things, aKA spikes, funnel the vibration onto A disc pucky thing that will make the vibration go away.

Why would you want to isolate vibration and have a rebound back-and-forth all over the place within a speaker, or component?

I’m not sure that simple concept is discussed anywhere herein that I saw.