SubSonic is a diminutive 9-inch cube that shatters previous performance boundaries of microsized boxes. You no longer need to compromise by choosing between superb bass response or a visually discreet, unobtrusive product. Most potent subwoofers are housed in physically large boxes that encroach on living space. Not so with the SubSonic. We achieve spectacular results with our proprietary subcompact amplifier design mated to a bipole pair of specially customized 6.5-inch woofers.