Surface reflected sound from boundary surfaces is a part of the recording and listening process. They cannot and should not be avoided, because this reflected sound adds mbre and fullness to the instruments and voices of the musicians.
Convenonal speakers are designed for, and tested in, an anechoic chamber. Meaning an echo-free room with absorbent material on all surfaces, a room without sound reflecons. Which is why convenonal speakers sound dull, lacking richness and color, in a “normal” room, thus creang a huge discrepancy between stated and real performance….