... 120Hz-6.5KHz Nominal Impedance 2*8Ω3. Bass Low Frequency 2*12" 75 cores neodynium magnet Sysem Sensitivity 96dB Power ... Picture System Sub Bass Sub Bass System Sensitivity 103dB 103dB Low Frequency 2*18" 100 cores 220 magnet 2*18" 100 cores ... , Long Throw Speaker, Sub Woofer, Sub Bass, Woofer Speaker, Amplifier, Power Amplifier, Microphone, Mixer are our factory production line. Any interested, please ...