Blue Octave Home DS12 Subwoofer (Black) 12" Down firing long throw subwoofer, built-in high efficiency amplifier 500 Watts dynamic power, 250 watts RMS, 26Hz - 260Hz (+/- 1dB) frequency response, 98dB sensitivity High rigidity PVA treated cone with butyl rubber surround, high density MDF cabinet design RCA line level inputs, stereo speaker wire high level inputs Applications include surround sound and home theater