Model: S-153Type: Three-way,Bi-amp,full range systemFrequency Response: 42Hz-20KHz±3dBDirectivity Index(DI): 12(+2/-2)1.2KHz-16KHzPower Handing: LF 600W(RMS) 1200W(PEAK) MF 150W(RMS) 300W(PEAK) HF 60W(RMS) 120W(PEAK)Sensitivity: LF 105dB(1W/1M) MF 105dB(1W/1M) HF 108dB(1W/1M)Max S.P.L: LF 133dB(PEAK/1M) MF 127dB(PEAK/1M) HF 126dB(PEAK/1M)LF Section: 15"(380mm) woofer 100mm(4in) coilNominal Impedance: 8 OhmMF Section: 6.5"(170mm) woofer 50mm(2in) coilNominal Impedance: 8 OhmHF Section: 1.75" neodymium compression driver with 44mm titanium diaphragmNominal Impedance: 8 OhmOutput section: 3-channelDispersion Pattern: 110°H×7.5°Finish: black paintSpeaker Cables: LF 1(+)1(-) MF HF 2(+)2(-)Input Connectors: 2×NL4MP speakonRecommend Crossover: LF 45Hz-400Hz MF/HF 400Hz-20KHzDimensions: 497×860×547mm (W×H×D)Package Dimensions: 577×940×627mm (W×H×D)/0.34cbmEnclosure: plywoodNet Weight: 49.5kgGross Weight: 53kg