PRIMUS PM61 Full Range 5.1 Surround SystemEnjoy premium 5.1-channel surround sound performance with this Theater Pack from Primus. It incorporates a copper-spun Injection Molded Graphite woofer for bass and a Linear Travel Suspension tweeter for clearer audio with minimal distortion.1500 Watts Total System PowerSubwoofer output Power 500 WattsComplete 8-Piece Surround SystemSurround activationSurround Speakers Driver Units: 4x (3″ + 1″)Frequency Response: 80Hz-20KHz + 3dBSensitivity: 88dB/1 Watt/1 MeterNominal Impedance: 4-8 Ohm10 Inch SubwooferDriver Units: 2×10″Sensitivity: 90dB/1 Watt/1 MeterNominal Impedance: 8 OhmsMSRP: $3174.00