SOLVED: Room boom

Great to hear you found something that worked for you.

I had the same issue with my KEF Reference 5’s on my oak, tongue and groove floor. I bought some Isoacoustics Gaia ones and they helped a lot, but I still had some issues.  I went to a company that makes granite countertops and had them cut a couple of pieces to a size that fit under the KEF’s and it solved 99% of the vibrations. 
 

It's interesting.  Going from an old entertainment center to a solid component rack made an obvious audible improvement!.

You can get those much cheaper on supplyhouse.com

I use Townshend Isolation Podia on the mains and Isoacoustics Gaias on the subs.

Very clean.

This topic is very important.

Many people talk about expensive gears.

Happy listening to music is not necessarily money-wasting games.