quiet my LFE

[zepaholic]

Once again calling for all the expert advice I get here. I live on the second floor in an apartment. I'm looking for something to kill some LFE below me. I need to put something between the floor and my sub (MFW 15). The neighbors won't be understanding for much longer.

 

[tn001d]

This is what you need

THey have other great products that may also work.

http://www.auralex.com/c_sound_isolation/c_sound_isolation.asp

 

[Shock]

Here is a a picture of the type of structure you're going to need.

It's called "House". Don't use a sub in an apartment. Anything less that sound proofing your entire apartment is not going to help, unless the entire thing is concrete.

 

[TLS Guy]

Once again calling for all the expert advice I get here. I live on the second floor in an apartment. I'm looking for something to kill some LFE below me. I need to put something between the floor and my sub (MFW 15). The neighbors won't be understanding for much longer.

What you are asking is impossible without rebuilding the apartment complex. You can't prevent LFE penetration with any mats, or products of that nature.

You will just have to play at a very low level.

 

[alexwakelin]

If your neighbors are understanding, then you can probably come to some sort of agreement regarding listening times/volumes. Warn them ahead of time if you're going to have some friends over and show off the system by blowing the doors off the place too

Oh yeah, that house thing doesn't always get the job done either.

 

[zepaholic]

Here is a a picture of the type of structure you're going to need.

It's called "House". Don't use a sub in an apartment. Anything less that sound proofing your entire apartment is not going to help, unless the entire thing is concrete.

That's probably the size house the ex wife can afford by now. Maybe in the future I'll get back in one. But in the meantime if I add anything to my HT I'll be sure and check with you to see if it's alright to put in an apartment.

 

[lsiberian]

What you are asking is impossible without rebuilding the apartment complex. You can't prevent LFE penetration with any mats, or products of that nature.

You will just have to play at a very low level.

Actually a Great Gamma works very well in my apartment. Improves SQ and dramatically cuts the LFE floor penetration. That's my experience anyway.

 

[croseiv]

An MFW-15 is too much sub for an apartment...you need less sub..... Shock gave the solution. You need a house.

 

[no. 5]

Actually a Great Gamma works very well in my apartment. Improves SQ and dramatically cuts the LFE floor penetration. That's my experience anyway.

How effective such a device is depends on how much of what the neighbors hear is from a physical connection between the sub and the building's structure, and how much is purely acoustic transmission.

 

[lsiberian]

How effective such a device is depends on how much of what the neighbors hear is from a physical connection between the sub and the building's structure, and how much is purely acoustic transmission.

How much it cuts is pretty straight foward. It's simply an isolation pad. But it will help. I notice a lot less bass in my other rooms with the pad. Plus the sub sounds cleaner. But I do suggest you move the sub to the wall closest to you and then do a crawl test for response. Then you can have a lower gain and still get a decent response. Remember you are in an apartment so make sure you don't play it loud at night.

 

[zepaholic]

I emailed Auralex about the Gramma and this was there response:





The Gramma is intended as a decoupling device. Essentially, it reduces transmission of structure-borne vibration whatever the sub and Gramma are placed on. To say that it will reduce LFE completely would be too broad a statement, but it will certainly reduce vibration transmission to the floor beneath. I don’t know if it will “save” the neighbors below, but it should reduce structure-borne broadband vibrations getting down to the neighbors if the sub is simply set on the floor. The Gramma is rated to handle up to 300lbs, so weight should not be a concern.



I hope this helps, and certainly let me know if you have any further questions I can help with.



Henry French

Product Application Specialist
Auralex® Acoustics, Inc.
6853 Hillsdale Court
Indianapolis IN USA 46250
317-842-2600 | 1-800-959-3343
hfrench@auralex.com | www.auralex.com