At your risk. Sound presure level must be low enough to avoid hearing impairment.
Elastomer membrane absorbers away from walls in order to absorb bass reverberation of the room. For example linoleum.
A baffle speaker can give excellent sound devoid of boominess. The bass can be very deep as a baffle speaker cuts bass at only 6dB per octave below cutoff compared to other type of speaker enclosures hitting at 12dB per octave or 24dB per octave.
The relative high cutoff may be of advantage in compensating Fletcher Munson equal loudness curves to avoid bass dominance with no mid, treble detail when sound is not whispering soft.
So the perceived to listener's brain frequency reponse can be flat to perhaps 20Hz. Amazing deep bass with mid and treble detail.
Example setup:
Electric bass guitar - electron tube Dubl-ex W35 - 4x 8in fullrange drive units on a baffle
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