The wireless subwoofer included with the JBL Bar 9.1 is a heavy-duty, down-firing bass unit. Designed to deliver deep, room-shaking cinematic bass, it pairs automatically with the main soundbar and operates on your local Wi-Fi / wireless network.The subwoofer specifications are as follows:Driver Size: 10-inch wooferPower Output: 300 Watts (Max. @ THD 1%)Frequency Response: Down to \(34 \text{ Hz}\)Dimensions (W x H x D): 305 x 440 x 305 mm (12.0 x 17.3 x 12.0 inches)Weight: 11.10 kg (24.5 lbs)Power Supply: 100 - 240V AC, ~ 50/60HzNetworked Standby Power: \(< 2.0 \text{ Watts}\)