1 To assure the finest performance, please read this manual carefully. Keep it in a safe place for future reference. Install this sound system in a well ventilated, cool, dry, clean place -- away from direct sunlight, heat sources, vibration, dust, moisture, or cold. In a cabinet, allow about 2. 5cm (1 inch) of free space all around this unit for adequate ventilation. Locate this unit away from other electrical appliances, motors, or transformers to avoid humming sounds. Do not expose this unit to sudden temperature changes from cold to hot, nor locate this unit in an environment with high humidity (i. , a room with a humidifier) to prevent condensation inside this unit, which may cause an electrical shock, fire, damage to this unit, and/or personal injury. Avoid installing this unit in a location where foreign objects may fall onto this unit or where this unit may be exposed to liquid dripping or splashing. On the top of this unit, do not place: ­ Other components, as they may cause damage and/or discoloration on the surface of this unit. ­ Burning objects (i. , candles), as they may cause fire, damage to this unit, and/or personal injury. ­ Containers with liquid in them, as they may fall, spilling the liquid and causing an electrical shock to the user and/or damage to this unit. Do not cover this unit with a newspaper, tablecloth, curtain, etc. in order not to obstruct heat radiation. If the temperature inside this unit rises, it may cause fire, damage to this unit, and/or personal injury. Do not plug in this unit to a wall outlet until all connections are complete. Do not operate this unit upside-down. It may overheat, possibly causing damage. Do not use excessive force on switches, knobs and/or cords...