Harman Kardon HK490I Owners Manual - Page 3

FEATURES GENERAL INSTRUCTIONS ■ High Instantaneous Current Capability (HCC) The power ampl ifier is capable of driving as much as 18 amperes of instantaneous signal current into a low impedance or reactive speaker load. This maintains the hk490i's high degree of sound quality even at high power levels. ■ Low Negative Feedback Negative feedback is kept to a minimum in the phono, preampl ifier and power ampl ifier sections. This provides exceptional transient response and low dynamic distortion. ■ Ultrawideband Response In order to maintain phase linearity, the frequency response of this unit greatly exceeds the audio range a both the upper and lower l imits. ■ Exceptional FM Audio Sound Quality In addition to high sensitivity and excellent interference rejection, the tuner section was designed to provide low distortion, low noise and wide stereo separation. ■ Digital Synthesized Quartz-locked Tuning Quartz-locked tuning accuracy eliminates drifting and mistuning, thereby guarantying optimum sound quality. Eight AM and eight FM stations can be simultaneously stored in the memory. They will remain for three weeks even if there is a loss of power. ■ Constructed for Audio Purity The internal wiring, layout and materials have been chosen to minimize noise, hum and interaction of the various circuits. Always Use at 120V AC This unit is designed for operation with 120V AC. Use only domestic AC outlets. Never connect the unit to an outlet supplying a higher voltage. This may create a fire hazard. Handle the Power Cord Gently •Do not disconnect the plug from the AC outlet by pul ling the cord; always pul l the plug itself. Pulling the cord may break the wire. • If you do not intend to use your unit for any considerable length of time, disconnect the plug from the AC outlet. •Do not place furniture or other heavy objects on the cord, and try to avoid dropping heavy objects on it. Also do not make a knot. Not only may the cord be damaged, it can also cause short circuits with a consequent fire hazard. Place of Installation Place your unit on a firm and level surface. Avoid installing your unit under the following conditions: ►Moist or humid places. ►Places exposed to direct sunlight or close to heating equipment. ►Extremely cold locations such as those in the direct draught from an air conditioner. ►Places subject to excessive vibration or dust. ►Poorly ventilated places. Do not cover the ventilation slots on the top of the unit. This will cause the temperature inside the unit to rise, which can eventually effect the reliability of your unit. Before Connection While you are connecting your receiver to the rest of your high fidelity system, please unplug the power cord, from the AC outlet. This will also disconnect all of the components plugged into its convenience receptacles. Moving the Unit Before moving the unit, be sure to unplug the power cord from the AC outlet and disconnect the interconnection cords to other units. Do Not Open the Cabinet To prevent fire or shock hazard, do not tamper with internal components for inspection or maintenance. Harman Kardon does not guarantee against performance degradation resulting from any modification. If water, a hairpin or wire accidentally enters the unit, immediately unplug the power cord from the AC outlet to prevent shock and consult an authorized Harman Kardon service station. If you use the unit under this condition, it may cause a fire or shock hazard. Cleaning When the unit gets dirty, wipe it with a soft dry cloth. If necessary, wipe it with a soft cloth soaked with mild soapy water and then wipe with a dry cloth. Never use benzine, thinner, alcohol or other volatile agent, and avoid spraying an insecticide near the unit. 2