Of, relating to, characterized by, or resulting from a flourishing economy: “Things aren't as boomy as forecasters thought they would be”(U.S. News & World Report).
Acoustics Exhibiting excessive accentuation on lower-pitched tones in reproduced sound: “This mode of bass reinforcement by resonance often causes boomy obfuscation of the true musical pitch—something akin to singing into a barrel”(New York Times).