Blue Octave Home SWS8 Subwoofer (Black) 8" Down firing long throw subwoofer, slim design, built-in high efficiency amplifier 320 Watts dynamic power, 160 watts RMS, 30Hz - 260Hz (+/- 1dB) frequency response, 98dB sensitivity High rigidity PVA treated cone with butyl rubber surround, high density MDF slim cabinet design RCA line level inputs, stereo speaker wire high level inputs Applications include surround sound and home theater