Diamond MICRO4 is a full range class D amplifier with full PWM topology. It has a power supply threshold of 10.0VDC-17.0VDC and an idle current of 0.5%. The amplifier has a distortion of 0.5% and a THD of 4 at 1KHz. It has a S/N ratio of -85dBA and -101.1dBA at A weighted 1W and FP respectively. The input sensitivity is 200mV - 5.0V and the input impedance is 20 K0. The output impedance is >250 and the damping factor is 10Hz-35Hz. The bandwidth is 25-250Hz (front only) and the crossover is -12dB/Oct. The fuse ratings are 40A and the dimensions are 8.39” x 4.05” x