Music listeners prefer reflections far stronger and later than small rooms provide.

Evidence

High-level long-delayed reflections are not as desirable as those with shorter delays and lower levels. However, all preferred levels are much higher in amplitude and later in time than the natural reflections provided by small rooms, indicated by the six dots. Small room reflections are simply not strong enough or late enough to be useful. — Toole, Floyd E, Sound reproduction- the acoustics and…, 688