Electronic Parameter -Working temperature: -10℃----40℃ -Working humidity: 40%----90% -Input voltage: AC110-230V±10%/50Hz-60 Hz -Frequency response: 20Hz----22KHz ≤±2dB -Harmonic wave distortion: ≤0.1% ≤0.08% (A Weight) -Signal-to-Noise: ≥80dB ≥90dB (A Weight) -THD10% Output power: 8Ω 40W+40W ±2W -R/L separation: ≥40dB -R/L Balance: ≤1dB -Treble control(10KHz): ±14dB ±2dB -Bass control(100Hz): ±14dB ±2dB -LOUDNESS 4 dB ±1dB -Input sensitivity: AUX/CD/DVD/TUNER:380Mv PHONO:8Mv -Input impedance: AUX,CD,DVD,TUNER: 47KΩ PHONO 100KΩ -Load impedance: 4Ω-16Ω -Midpoint DC Level Output <50Mv -Voltage with-stand: AC 3.5KV/50Hz/60S 5mA -Insulation resistance: DC500V,>100MΩ 60S Reference information: - Unit size: (W)360*(D)295*(H)70mm - Packing size: - Accessories (option): Remoter (batteries), manual.. - Container Q.T.Y.: