Device Name:LA-1 Type:Monaural Passive Input Power:20W (music RMS) / 40W(peak) Impedance:8 ohm Actual Freq.:200-20KHz Terminal : LA-1 : None (50cm direct cable out) Material : AL,SUS Others : Water and fire resistance Weight : approx.150g (280g with package) Size:32 x 262 x 14 mm