For a quick good time, blankets...


and pillows.

Try them! On the floor, between the speakers and between them and your listening chair.

You may discover your speakers are capable of more than you thought.

Best,

E
erik_squires
I cant get by without an extra thick wool sweater while doing any critical listening. 
Post removed 
I mentioned this somewhere else, but remember seeing a picture of male model Fabio's system? Nice gear, (IRS speakers and Krell electronics iirc), but set-up in a marble-floored, glass-walled room. Ridiculous.
Interesting. In that environment, a bi-polar line array may actually be the best you can get.

Still, yeah, not where I'd put my best gear.