Sub isolation from floor-pros/cons?

[cerwinmad]

I have a CerwinVega VE-28s sub. it is dual 8inch front firing, with a rear port. I have had it sitting directly on carpet, no feet or spacers. i have now got it sitting on four rubber cylinders approx 1.5 inch high x 1 inch diameter. I was wondering wat influence this has on its performance. also can some one explain wat "bass loading' is? i heard some people use weights? or is it a old wives tale? thanks, Rob.

 

[MDS]

If the sub is sitting on something that could vibrate, isolating it somewhat can have a miniscule effect on dampending those vibrations but in general bass will go through anything because the wavelengths are so long.

 

[cerwinmad]

ok, yeah i didnt have any vibration probs, just thought it might be a good idea. so basically theres no difference between havin sub sitting directly on floor and havin it slightly raised on feet?

 

[Exit]

I agree that the rubber feet don't do anything sonically. My subwoofer sets directly on the carpet, but it has a hardwood floorplate which redirects the downward firing subwoofer's bass. I don't think the hardwood plate is necessary either but it is a nice design feature that looks good and protects the speakers.

 

[Exit]

Also, I had a BIC 18" downfiring subwoofer and it set on hard plastic feet. In my first house it fired into hardwood floors and in my second house if fired directly into carpeting. I did not notice any difference in sound quality between the two installations.

 

[ParadigmDawg]

My sub would actually bounce off my floor(hardwood) at high volumes. I had to purchase this (http://www.markertek.com/SearchProduct.asp?item=AUR-GRAMMA&off=1&sort=prod&skuonly=0&search=AUR-GRAMMA&pagesize=20) to prevent it.

 

[cerwinmad]

My sub would actually bounce off my floor(hardwood) at high volumes. I had to purchase this (http://www.markertek.com/SearchProduct.asp?item=AUR-GRAMMA&off=1&sort=prod&skuonly=0&search=AUR-GRAMMA&pagesize=20) to prevent it.

awesome!!!