![](https://www.musicincmag.com/images/gear/Sonic_ReVision_The_BOOM-CRD.jpg)
Representing its commitment to developing the next-generation of high-efficiency accessories for drums and other musical instruments, sound engineer Sam Millender and Sonic ReVision have unveiled the latest advance for acoustic drums: The BOOM CRD. The Compound Resonance Driver (CRD) is a state-of-the-art device that shapes and multiplies the resonance of any bass drum — increasing the amplitude of the fundamental and lower frequencies and providing a louder, fatter, fuller and more intense sound. Not only will drummers love the improvement in their bass drum tone, they can now achieve a bigger sound with a smaller drum.