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Sound and vibration control

As an engineer, I wanted to share the results of an experiment I just ran. I have two SVS PB16 ultra subs and my wife got me the SVS isolation rubber feet for Christmas. We have an old house with hard wood floors and when these subs really hit, it does shake these floors. My Focal 1038BE speakers only have spikes for feet, and not so good on old hard wood floors. So, just bored and foing around, I mounted these isolation feet on my speakers, reset them and started playing music.
I was expecting nothing, and was pleasantly surprised to find the base tighten up and midrange actually improved.
I understand physics and this makes no sense. Most of the energy is still being created by the same drivers. Decoupling the speaker from the wood floor with rubber feet should not improve midrange.
Is this some type of “I’m an old man and losing it”, or might there be something to this?
Any one else out there ever try something like this?
Thanks.
128x128sonyesman2
marqmike
839 posts
 
Hi sonyesman
I don't have any idea why. But different feet will make the speaker sound slightly different to me. Good speaker companies will be a little particular about the feet they put with their speakers. But it is fun experimenting like you have when there is no cost or little cost involved. I probably change things around a couple times a month until I settle on something that I am happy with. After that I don't really care if something else is much better, I just enjoy what I have going on and don't worry about chasing the next big thing. Your having a knowledge of physics I probably haven't provided any helpful information. Sorry.
stevecham
3,340 posts
 
That's why survey courses are often repeated in both Fall and Spring semesters.
geoffkait's avatar
geoffkait
23,365 posts
 
Reduced mechanical feedback. See, that’s not so difficult.
oddiofyl's avatar
oddiofyl
3,825 posts
 
Auralex isolation platforms  work even better....
twoleftears's avatar
twoleftears
5,318 posts
 
If you're feeling flush, now try some Isoacoustics Gaia feet.
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