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There will be some kind of big rug.
Also one wall is an opening into the rest of the house, it's quite open plan, so that will have a full blackout curtain. Also behind the sofa is a bay window which will also have a black out curtain, so effectively the rear wall and one side wall will be soft materials.
Then right opposite the speakers will be a big fat lump who can also absorb resonant frequencies.
After a month or so I will then run the DIRAC room calibration and see what difference that makes to the overall sound.
Indeed
R7s