... with well stability;2. Best-seller amplifier products.Application Professional power amplifier matched with professional speaker system.Technical ... 0.1% Rated Power@8Ω Input Sensitivity0.775V, 1.0V, 1.55V Input Impedance10K/20K hours, unbalanced or balanced ... Throw Speaker, Sub Woofer, Sub Bass, Woofer Speaker, Amplifier, Power Amplifier, Microphone, Mixer are our factory production line. Any ...