4-581-373-11(2) 4 Channel Class-D Amplifier For customers in the United States: The warranty for this product is included in this manual (page 13). Owner’s Record The model and serial numbers are located on the bottom of the unit. Record the serial number in the space provided below. Refer to these numbers whenever you call upon your Sony dealer regarding this product. Model No. XM-S400D Serial No.
Warning FOR THE CUSTOMERS IN THE USA. NOT APPLICABLE IN CANADA, INCLUDING IN THE PROVINCE OF QUEBEC. POUR LES CLIENTS AUX ÉTATS-UNIS. NON APPLICABLE AU CANADA, Y COMPRIS LA PROVINCE DE QUÉBEC. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This symbol is intended to alert the user to the presence of a hot surface. The symbol applies to Europe models only. If you have any questions or problems concerning your unit that are not covered in this manual, please consult your nearest Sony dealer. Table of Contents Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Operation Location and Function of Controls . . . . . . . . . . . . . .
Operation Location and Function of Controls POWER/PROTECT indicator Lights up in green during operation. If the protection circuit activates, the POWER/ PROTECT indicator flashes. For details, see “Troubleshooting” (page 12). SIGNAL INPUT connector Can be connected with the supplied RCA input cord or high level input cord. INPUT SELECT switch Sets the input signal to “2CH” or “4CH.” REAR LPF (low-pass filter) switch Sets the low-pass filter (LPF) to “ON” or “OFF.
The unit will not come into contact with a driver/passengers or materials in your car since the unit becomes hot during use. Do not install the unit under the floor carpet, where the heat dissipation from the unit will be considerably impaired. Installation and Connections Parts for Installation and Connections Main unit Mounting the unit Power connection cable ×1 Prepare a mounting board that is thicker than 20 mm (13/16 in) since the supplied mounting screws are all 20 mm (13/16 in) long.
4 Place the unit on the mounting board and secure it with the supplied mounting screws . Connections Before making any connections, disconnect the ground (earth) terminal of the car battery to avoid short circuits. If your car is equipped with a computer system for navigation or some other purpose, disconnecting the ground (earth) wire from the car battery may damage the computer memory.
Making power connections Connect the supplied power connection cable to the POWER/OUTPUT connector on the unit. Input Connections Set the INPUT SELECT switch to “2CH” or “4CH” according to the input connection. Also, refer to the manual supplied with your car audio unit for further details. Line input connection Set the INPUT SELECT switch to “4CH” with the speaker connection (page 9).
High level input connection High level input connection Set the INPUT SELECT switch to “4CH” with the speaker connection (page 9). Set the INPUT SELECT switch to “2CH” with the speaker connection (page 9).
2-way system Speaker Connections Set the REAR LPF switch and FRONT HPF switch to “ON” or “OFF” according to the speaker system. Also, refer to the manual supplied with your speakers for further details. Set with the input connection (page 7) or (page 8). 4-speaker system Set with the input connection (page 7) or (page 8). White White/Striped Full range speakers (min. 4 Ω) Gray Gray/Striped Green Green/Striped White White/Striped Front speakers (min. 4 Ω) Subwoofers (min.
Additional Information Precautions This unit is designed for negative ground (earth) 12 V DC operation only. Use speakers with an impedance of 4 Ω to 8 Ω. Do not connect any active speakers (with built-in amplifiers) to the unit. Doing so may damage the active speakers. Avoid installing the unit in areas subject to: High temperatures such as from direct sunlight or hot air from the heater Rain or moisture Dust or dirt Inclined surface Direct contact with a driver/passengers.
Specifications FOR THE CUSTOMERS IN THE USA. NOT APPLICABLE IN CANADA, INCLUDING IN THE PROVINCE OF QUEBEC. Current drain At rated output: 15 A (4 Ω, 45 W × 4) Remote input: 1 mA Dimensions Approx. 162.8 mm × 37.3 mm × 62.6 mm (6 1/2 in × 1 1/2 in × 2 1/2 in) (w/h/d) not incl. projecting parts and controls POUR LES CLIENTS AUX ÉTATS-UNIS. NON APPLICABLE AU CANADA, Y COMPRIS LA PROVINCE DE QUÉBEC.
Troubleshooting The following checklist will assist in the correction of most problems which you may encounter with your unit. Before going through the checklist below, refer to the connection and operating procedures. The POWER/PROTECT indicator does not light up. The fuse is blown. Replace the fuse with a new one. The ground (earth) wire is not securely connected. Fasten the ground (earth) wire securely to a metal point of the car. The voltage going into the remote input (REM) wire is too low.
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