Funny this should appear today. I just finished building my own this morning. Have gone the toilet paper route, but whole roll, not just tube. One of the best isolation there is. But looks weird. So I bought enough length of maple 1 x 2s, had them cut 6" and 3" length and crazy gel glued them in T form, strung my cables, now 7" off carpet, put 1 1/4" maple edge grain cutting board under each speaker. An injection of fluidity and liveliness, slighter brightness and warmth, and most of all the incredible new solidity and bass depth was stunning. This all cost $23 for the wood from Home Depot and $45 apiece for the cutting boards from Amazon. Most elevators commercially sold charge $100 that for just 1 to 3 elevators. I got 16 from my $23... You should get them off the floor whether carpet, cement or wood. Free from static and electromagnetic field. The difference was akin to a $10,000 upgrade.
