Railtones subwoofer provides additional bass support. Plugs into the wall and connects wirelessly to the railtones transmitter. Includes 4" driver. Railtones remote will also control volume on the subwoofer.
Oxygen Audio SPIRAL380 15 inch. Subwoofer, 330 Watts, 85 oz Magnet (O2 SPIRAL380) (SINGLE PIECE). *Size: 15' subwoofer*Power (WRMS): 330W*Magnet size: 85 OZ*Frequency range: 28HZ/1.2KZ*Sensitivity: 90*1W/1M/2V (dB)