The function of voltage-fixed amplifier SBKII series (Type) SBKII100W SBKII125W SBKII150W SBKII200W SBKII250W SBKII300W Reted output power: 100W 125W 150W 200W 250W 300W Accessional function with two subarea Size(mm) 480*450*88 Weijht(kg) 12 12. 7 12. 8 13. 5 14. 6 15. 5 Technical Parameter: SBkII Series Power Amplifier Rated output voltage: 70V TO 120v Rated load impedance: 8ohm - 16ohm Frequency response: 80Hz - 8KHz± 2dB Total harmonic distortion: 80Hz - 8KHz<=2% Signal noise tatio: Input Microphone>=68dB Input circuitry>=78dB Input sensitivity: Mike: -60dB circuitry I: -20dB Output level modulation: <=2dB Accessional function: With pre-set Voltage of supply: AC220V± 5% 50Hz± 2Hz