The best kept secret in cinematic sound design is the low-end boom, which provides scale and dimension to your sound designing. And ALIBI has the biggest and best collection of booms and sub booms available for licensing. This album is a good way to start, as is has a variety of delays, distances, lengths and reverbs to choose from. (Composer Kent Carter's "long reverb" cues seem to be the favorites). When you're cutting Action or Drama and need to punctuate a moment that doesn't call for a slam or a hit, try one of these booms to give it gravitas. The low frequency rumbles here are also good for creating dramatic atmospheres, so be sure not to miss them.