PreSonus Eris Sub 8BT: 8-inch Active Studio Subwoofer with Bluetooth for Multimedia, Gaming, Studio-Quality Music Production, Black Powerful 8-inch Subwoofer for Studio and Multimedia Use: Features an 8-inch front-firing glass-composite woofer delivering smooth, low-frequency transients and 100 watts of power for exceptional bass response Enhanced Connectivity with Bluetooth 5.0: Offers flexible Bluetooth wireless input and stereo ¼-inch TRS and RCA inputs and outputs, making it versatile for any setup including multimedia, gaming, and music production Precision Tuning for Optimal Sound: Includes tuning controls, a variable lowpass filter for seamless crossover transition, and a switchable 80 Hz highpass filter to pair perfectly with satellite speakers or studio monitors Deep Bass Performance: Reaches a low frequency of 30 Hz, allowing you to experience the full sonic spectrum for better mixes and immersive sound in compact spaces