How to keep subwoofer vibrations down?

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Oh, the joys of apartment dwelling :indiff:

I recently moved into an apartment and also recently acquired a home theater system with a 230 watt powered 10" subwoofer. I live on the 2nd floor, and I am a bass-o-phile. Does anyone have any cheap (read:$100 or less) solutions to keeping the vibrations to a minium for my downstairs neighbors? So far, the only thing I've done is fill a box with eggcrate foam and put the subwoofer on top of the box. This works decently, but I'm looking for more isolation. I've found a product called SubDude, but will that be enough? Anyone have any recommendations? No smartass remarks saying "buy headphones" please.
 
Move the sub as far away from you as possible. The sub frequencies need time, therefor distance to be fully appreciated. You'll get more bass, and you'll turn down the bass level. Also, don't blast the thing in the first place. I only use mine for movies, since BOOMING bass sounds with music sounds horrible. If you do use if for music, set the crossover to 50hz, or less. If it doesn't have a x-over, lower the 50+hz in the bass management system on your stereo receiver. Oh, and attach these to the sub... http://www.oregondv.com/15spike.htm
 
Move the sub as far away from you as possible. The sub frequencies need time, therefor distance to be fully appreciated. You'll get more bass, and you'll turn down the bass level.
This is not true. It is true that bass frequencies have large wavelengths, but that doesn't mean that you have to keep a specific distance from the subwoofer in order to be able to hear bass frequencies. There are good and bad positions for a subwoofer, but they have little to no influence on how much bass reaches your lower neighbours.

Also, don't blast the thing in the first place. I only use mine for movies, since BOOMING bass sounds with music sounds horrible. If you do use if for music, set the crossover to 50hz, or less. If it doesn't have a x-over, lower the 50+hz in the bass management system on your stereo receiver.
Turning it down is a solution, unfortunately sacrificing your own pleasure for the need of others is only a technical, but no satisfying solution.

Oh, and attach these to the sub... http://www.oregondv.com/15spike.htm
Spikes are nice, but they couple the sub to the ground mechanically, which equates even more bass for your neighbours. What you need to do is decouple the sub from the floor, which leads to soft materials.

An old and pretty cheap trick is to cut tennis balls in half and use them as feet for your sub. They are very soft and will decouple your speaker from the floor. However, if the unintentional bass experience your neighbours get is due to the construction of the house (meaning that the floor starts to swing, or the bass goes right through it), that will not be enough. Unfortunately, there's little you can do about that. Alternatively to using no subwoofer at all, you might try to find a position together with a friend or your neighbour where they get as little as possible. That could be pretty much any position in your room, even one you can't live with. There's not much you can do about such a problem after all.

Regards
the Interceptor
 
Thanks for the suggestions. My subwoofer came with those cone feet attached to it already. Would it help to try the tennis balls anyway? And what do you guys think about that SubDude product I linked to?
 
I use to put my bass next to monitor since i liked the flashing lights. I then moved it onto the floor where i found the bass to be more...vibrant? So try moving your subwoofer off the ground?
 
This is not true.
Oh, yes it is!

It is true that bass frequencies have large wavelengths, but that doesn't mean that you have to keep a specific distance from the subwoofer in order to be able to hear bass frequencies.
Oh yes you do! If you want to hear all the sub-bass frequencies at their fullest. It's a must. I've done my own testing on this, plus I learned about acoustics several years ago. Plus, it's easy for anyone to test this fact out for themselves. Stand next to your sub woofer and listen. Move 26 feet away and listen. More low frequency bass! How cool!

There are good and bad positions for a subwoofer, but they have little to no influence on how much bass reaches your lower neighbours.
Yes they will. Put a sub in the farthest away corner, and the listener will hear more bass sound. Maybe, too much and will turn down the bass level. Therefor, less bass for the neighbors. Simple.

Turning it down is a solution, unfortunately sacrificing your own pleasure for the need of others is only a technical, but no satisfying solution.
Most people use way too much bass. You can't believe how many idiots I come across at music stores who always crank the bass to near max tone settings. Plus, if he follows the tips I give him, I'm sure he'll get an increase in bass sounds, therefor turning the bass level down is the proper solution. He wont sacrifice a thing.

Spikes are nice, but they couple the sub to the ground mechanically, which equates even more bass for your neighbours. What you need to do is decouple the sub from the floor, which leads to soft materials.

An old and pretty cheap trick is to cut tennis balls in half and use them as feet for your sub.
Regards
the Interceptor

Spikes are a solution to the tacky and ugly tennis ball thing. Spikes wont isolate bass frequencies passed through the floor, but it will reduce them a whole lot. Oh, and it's racket balls, not tennis balls, that you're supposed to use.
 
Oh, yes it is!
No, it isn't! :D
Oh yes you do! If you want to hear all the sub-bass frequencies at their fullest. It's a must. I've done my own testing on this, plus I learned about acoustics several years ago. Plus, it's easy for anyone to test this fact out for themselves. Stand next to your sub woofer and listen. Move 26 feet away and listen. More low frequency bass! How cool!
Given you have a subwoofer in your room, it is inevitable that the room takes huge influence on what you hear where, simply because the wavelengths of bass frequencies have dimensions similar to the average room. It is normal that you'll find places where you won't hear almost no bass at all, and you'll find places where the bass is twice as strong as you want it to be. However, that has little to do with the position of the subwoofer. I do believe that you you have experienced that the closer you come to the subwoofer, the less bass you hear. But I also am absolutely sure you and many other people have also experienced the exact opposite in other situations, such as in a club. Therefor, the fact that you hear less bass the closer you get to your woofer may be valid for your situation, but not in general.
Yes they will. Put a sub in the farthest away corner, and the listener will hear more bass sound. Maybe, too much and will turn down the bass level. Therefor, less bass for the neighbors. Simple.
The general problem with bass frequencies are the huge wavelengths, which pass doors and even floors (depending on the way they are built) with ease. Therefor, if you have a problem with your bass slipping through your floor down to your neighbours, your options are rare. If you put the sub in a corner, you will experience more bass without changing the volume, as the corner reflects the energy. However, you will also maximize the interaction of the subwoofer with your room, which equates more intense stationary waves and longer reverberations, which you don't want. Putting the sub into a corner is no solution I'm afraid.
Most people use way too much bass. You can't believe how many idiots I come across at music stores who always crank the bass to near max tone settings. Plus, if he follows the tips I give him, I'm sure he'll get an increase in bass sounds, therefor turning the bass level down is the proper solution. He wont sacrifice a thing.
That's one thing I had to learn in a longer process as well: there is no such thing as "too much bass". There is too much bass for your and my taste, but if the listener likes a lot of bass, too much for us will be just right for him. The amount of bass in a setup therefor is not a fixed value, it's a variable depending on the taste of the listener. So if one wants that much bass, he turns it up pretty far. The actual problem is that the higher the bass level is, the more your problems grow.
Spikes are a solution to the tacky and ugly tennis ball thing. Spikes wont isolate bass frequencies passed through the floor, but it will reduce them a whole lot. Oh, and it's racket balls, not tennis balls, that you're supposed to use.
Is there a significant difference between a racket ball and a tennis ball? And I agree that they do look ugly, whereas spikes usually look much better. However, as I stated before, spikes will engage a well-defined connection between the device and the surface it is standing on. Put under a speaker or a subwoofer, they usually make the sound more precise and calm, as they reduce enclosure movements. If you have a soft floor made of wood or something similar however, what the spikes will do is transfer energy from the enclosure to the floor. The floor will radiate that energy by sending it elsewhere, such as your neighbours. And if that is your problem, what you need to do is decouple the enclosure from the ground. To do that, you need some very soft feet, which absorb the energy by themselves instead of passing it on ... such as tennis balls, or racket balls for that matter.

Regards
the Interceptor
 
Would it help to try the tennis balls anyway?
I'd give it a shot. You have nothing to lose, and it's not exactly a lot of work.
And what do you guys think about that SubDude product I linked to?
Looks like a board of MDF with some foam underneath to me - nothing you'd desperately need. You could build that by yourself for much less by the way.
 
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