SONY Graphic Equalizer 3750-300-20( SEQ-400 Operating Instructions Be tore aerating the unit, please read this manual thoroughly and detain it for future temperance. Owner's Record ‘The mode and serial numbers are located at the rear. Record the serial number in the space provided below. Refer (G these numbers whenever you call pour your Sony fester regarding this product. Mabel No. DEG-400 Serial prevent fire or shock hazard, do not expose the unit o rain or moisture.