Room treatment done (tastefully) right, can be athletically pleasing without wrecking the "family room". A thick Turkish carpet has more sound absorbance that 6 inches of fibreglass/rockwall panel of equal size. A bookcase full with uneven arrangement of books (real life, not Fashion/home Mag bookcase) can be a better diffuser than a random surface wooden block panel. Even corner bass traps can be made into furniture and achieve both goals. Ceiling absorbers, don't have to be ugly pyramid foam things resembling egg cartons.
And it's cheaper than a Tellurium Q Statement or Shunyata Research Mains Power Cable, or Nordost Valhalla Ethernet Cable or a Entreq grounding box, and has measurable provable/reversible results unlike that other woo-woo stuff.