Reference: 1P0051700 A combination of four 6,5 " loud speakers, aong with an 8" subwoofer with a maximum power of 80 W. Comes with connection cables and all the necessary cables for assembly.   Reference: 1P0051701 High quality and deep sound. With a Bass Reflex enclosure and a 190 W RMS amplifier. Frequency response, 10 Hz-30KHz. Signal/noise ratio 90 dB. Low pass frequency range 40 Hz-240 Hz. Input signal 100 mV a 100v. Woofer 8" (202mm) , impedance 4Ohm, frequency response 26Hz - 1Kz. Sensibility 87dB. Max power 80W . Reference: 1P0051702 6,5" loudspeaker(165mm), impedance 4 Ohm, frequency response 60Hz-15KHz. Sensibility 89 dB. Max power 40W.