The Mackie CR8SBT Creative Reference subwoofer delivers powerful, dedicated bass reinforcement for your studio or home. With flexible rear panel inputs and outputs, including 1/4" TRS and RCA, plus easy Bluetooth pairing for wireless streaming from your mobile device, the CR8SBT seamlessly integrates into your listening space. Dial in the perfect amount of low end with input and output level controls, variable crossover and polarity switch. The sleek, compact design of the CR8SBT matches perfectly with Creative Reference monitors for a professional listening experience in any room. The included CRDV desktop volume control provides fingertip control over your entire system. Whether for critical studio reference or casual listening, the CR8SBT subwoofer, with its rich, textured bass response, completes your Creative Reference monitoring solution.