Need Suggestions For Raising Speaker Height

@Marakanet - The wood and granite slabs sound do-able. I wonder if it would be stable though. I imagine it would be but I'll have to take off the spikes if I use granite and use blue tack or something. The "alive" comment was funny.

@Donjr- I thought the same thing too but when I spoke to Noel he shot the idea down immediately. Something about it not being worth it for him to make just the legs. That makes no sense so me so maybe I misunderstood him.

Not sure what your speakers and stands look like, size, etc. so this might not work. But I raised my floorstanders up a few inches by going to Home Depot and getting a trailer block (or something like that). It's a $5 block of concrete approximately 14" x 14" x 3" that I painted black. They looked fine in my dedicated room, not sure how you (or your wife) would like to have them in the Living Room, or how they'd work with your flooring. But after painting they really didn't look bad, didn't look like concrete blocks.
Just a thought

There is no reason to raise your speakers. All you need to do is tilt them back. You can accurately do this by using a drafting T and a laser. With the long end of the T pointed at your listening position tilt the speaker back until the laser is at ear level. Raising the speaker will only distance the speaker even farther from a critical room boundery.

Get a couple of hardwood butcher block cutting boards that are just a little bigger than the base of your speaker stand. Add spike kits to them to pierce the carpet if you need it. On bare floor put Vibrapods under the wood slabs. You can get butcher block cutting boards in thicknesses from 1" to nearly 4". I have a 3-1/2" thick behemoth under my turntable.

Oh, and if you do it right, it'll make your speakers sound better too. A maple butcher block cutting board has just the right density to drain vibration and keep clarity without adding midrange glare as you might with granite. If you shop at Overstock.com you'll also save a lot of money over most alternatives. I got my butcher block there for about $89, a fraction of what a Mapleshade or other platform would cost.

Rrog has your answer.Perfect answer if you are sitting at least 6 to 8 feet away from the speaker.