User manual SONY XM-ZR604

[. . . ] Power Output: 60 Watts RMS × 4 at 4 Ohms < 1% THD+N SN Ratio: 97 dBA (reference: 1 Watt into 4 Ohms) The model and serial numbers are located on the bottom of the unit. Refer to these numbers whenever you call upon your Sony dealer regarding this product. Use speakers with an impedance of 2 to 8 (4 to 8 when used as a bridging amplifier). [. . . ] This light weight power supply system provides a highly efficient power supply with a low impedance output. * Protection circuit This amplifier is provided with a protection circuit that operates in the following cases: -- when the unit is overheated -- when a DC current is generated -- when the speaker terminals are short-circuited. The color of the POWER/PROTECTOR indicator will change from green to red, and the unit will shut down. If this happens, turn off the connected equipment, take out the cassette tape or disc, and determine the cause of the malfunction. If the amplifier has overheated, wait until the unit cools down before use. If you have any questions or problems concerning your unit that are not covered in this manual, please consult your nearest Sony dealer. If the fuse blows, check the power connection and replace both the fuses. If the fuse blows again after replacement, there may be an internal malfunction. Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This symbol on the product or on its packaging indicates that this product shall not be treated as household waste. Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product. For more detailed information about recycling of this product, please contact your local Civic Office, your household waste disposal service or the shop where you purchased the product. For any service or guarantee matters please refer to the addresses given in separate service or guarantee documents. Turn on or off the LPF and HPF switch at the unit rear as illustrated below. Pass the wires through the cap, connect the wires, then cover the terminals with the cap. Note When you tighten the screw, be careful not to apply too much torque* as doing so may damage the screw. [. . . ] Be sure to connect the ground wire of the unit securely to a metal point of the car. Be sure to connect the remote control wire of the car audio unit to the remote terminal. When using a car audio unit without a remote output on the amplifier, connect the remote input terminal (REMOTE) to the accessory power supply. [. . . ]