Somewhere in this forum this has may have been done ,Its all about those who have subs and living around others and wanting not to disrupt their world , I thought about how can I stop these sub sonics . So I purchaced a slab of 1/4 granite polished but not the edge for this I uesed some clear nail polish from 10 ft can not tell , Glued four high quailty rubber discs under the slab its now 1/4 off the floor , the sub a Martin Logan Grotto removed the spikes and replaced with oem rubber feet. After days of listening to this tweak I think, and I must stress that, the focus of the sub sounds more detailed and have backed off the gain ever so maybe one notch.As far as stopping the sonics from traveling to others domains so far so good tyme will tell. Anyone played with this tweak?
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