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Cheap Speaker "Isolation" Solution for 300 lb. Speaker

 Good Afternoon All,

I am looking for advice on a cheap and simple isolation solution for large, heavy (325 lb. each) floorstanding speakers. 

I've read much advice on granite or marble slabs, multiple layers of cork, springs, etc; while this has been helpful, it is neither a cheap or simple solution. 

Ultimately, I am looking to protect my wood floor from damage these very heavy speakers might do, as well as decouple the speaker from the floor in order to reduce bass resonance (I am in an apartment complex and worry about noise complaints). I've looked into sorbothane pads, but they never seem to be able to hold this much weight.

Thanks!
scorndefeat
wspohn's avatar
wspohn
579 posts
 
I take it you aren't looking at spikes and floor protectors?

If not, suggest that you look at furniture dolly wheels especially if you   have threaded holes in the bottom of the speaker. The rubber wheels give some isolation and also ease the positioning chores.
scorndefeat OP
16 posts
 
wspohn,

That's a good suggestion. I've see a lot of debate regarding the spikes + discs combination and whether it couples the speaker to the floor or decouples it; I can't say I know enough to  confirm it either way, but I certainly could use help with positioning such large speakers and it sounds like wheels would do the trick. Thank you.
blueranger's avatar
blueranger
719 posts
 
Herbies Audio Lab has some nice spike cups and large anti-resonant round dots
audiozenology
362 posts
 
Sorbothane can easily support this weight, it is just a matter of choosing the right hardness of Sorbothane and the right total surface area of the Sorbothane. Springs are easy as well, again, just need to pick them correctly. It is easier to get a low resonant frequency with a spring to cut-off all higher frequencies.  There is another thread running now about DIY platforms with a lot of ongoing "discussion" about springs, sorbothane, etc.
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