Elevating subwoofer about two feet off the floor

I have a Rythmik sub and so far its has been sitting on the floor spiked with moderate results. I have done measurements using REW and there were a couple of suck outs and FR was not even. After reading this thread I decided to try it out so with the help of some stack of books I raised the sub 12" off the floor. Did my measurements again and was surprised to find that all the suck outs were gone and now the FR was pretty much flat. Adjusted the phase, xover and gain and I am enjoying a sub that is very well integrated with my monitor speakers. Its worth trying it out. 

Never hurts to experiment.Another thing to try is turn them to face the wall and move them closer or farther and hear what happens.

Have your cake 🎂 and eat it, too. Isolate the subwoofer with springs. Then you isolate the front end electronics from mechanical feedback AND take advantage of the proximity to the floor. Problem solved! 🤗 I’m pretty sure isolating the sure also reduces cabinet resonance. Three, three mints in one! 😀

Steakster you need to lower your dose of Adderall. I never implied anyone should not trust their own ears with their own systems. That does not mean I have to trust anyones ears with my own system. I will go where the science takes me long before I trust anyones hearing including my own. The people I help with their systems are not going anywhere near a Best Buy. I do so only by specific request and as a favor. I did work for Luskin's (RIP) when I was in medical school to help pay for tuition. It was a mid Fi store and a rat race. Far worse than Best Buy. That is the place they use to wire the speakers out of phase so the salesmen could sell the cheap crap they were being spiffed on. I always tried to sell the best equipment and failed miserably. The best equipment was always more expensive and people were more interested in cheap. If I work with anyone now it is generally money no object. What Fun!!
I am no where near money no object myself and never will be but I still get to build incredible systems in my dreams:)