... Ratio >90dB7.THD (1KHz) <0.1%8.Power supply 11.5-14.5VDimensions 500*260*58mmLogoOEM is ... corporation for making car audio , amplifier,capacitor , cable ,woofer, speaker.Amplifier and many other audio products are in international ... amplifier application?· amplification weak signal · promote the speaker and subwoofer 1channel high power car amplifier/LA 1.4K-D power amplifier/car audio amplifier ...