Mass-loading subwoofer


I have a Rel G1 MK2 subwoofer (108#) that sits on an Auralex Great Gramma V2 platform (300# limit) and I think that I want to mass-load it.
The question is mass-load with what and, how much weight?

I’ve been looking at (for instance) a box of granite/marble slabs etc. from Lowe’s that are still in the box and strapped, or bags of steel shot from sandbags.com etc. on Diversitech pads.

Would those options “rattle” etc?

I know that the obvious answer is to experiment but I really would like suggestions first and there seems to be surprisingly little information on the subject anyplace.

 

Thanks!

bacchus1234

Hmmm. Rubber-coated weights is an interesting idea too. 

The Auralex seems to already be pretty good at decoupling and especially for the price. An added benefit is that it’s much easier to move the subwoofer if needed. 
 

Something like Gaia’s would probably be better but also a good deal more expensive PLUS I really don’t want to have to remove the existing feet to replace? 

I was fighting with the set up of my sub and at the advice of some knowledgeable members here, I went completely against the REL guidelines. I moved the sub out of the corner (along the wall, approx 6ft. off the corner) and set it on a 1.5” thick granite slab…bingo. Problems solved. 

Jl1ny- Rel Special Carbon? That’s with a down-firing passive right? 
 

To be honest, I got the Auralex for my previous Rel (S5/SHO) which had the down-firing passive and it greatly improved it. I’ve never actually experimented without it with the G1 though. 
 

 

@curiousjim 

You wouldn’t happen to have a picture? 😁

I have a 42 pound curling stone on my REL 7i. Not sure it makes any difference, but it looks good.

Sorry for the slow response, I was traveling. I had hoped to post a picture on my return, using my PC to navigate the Byzantine image posting process on this forum. Being unwilling to set up a new account on an image hosting site for one picture and not having success with the copy/paste solution, I throw up my hands. 

 

 

 

@curiousjim 

You wouldn’t happen to have a picture? 😁

I had to set up a picture service for another post, so circling back on this request. 😀