Cerwin Vega XL 150.2, XL 300.2, XL 300.4 Owners Manual

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Operation and Installation Manual

XL 150.2

XL 300.2

XL 300.4

CERWIN-VEGA!

MOBILE AUDIO

P O W E R A M P L I F I E R

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INTRODUCTION

Thank you for purchasing a Cerwin-Vega! car audio amplifier. This power amplifier has been designed to provide high quality performance with a minimum of maintenance. However, it’s performance will only be as good as the care and quality of components with which it is installed. We therefore advise that you read these instructions very carefully to familiarize yourself with the product and it’s features.

Before installing the power amplifier please read this instruction manual carefully. The instructions for mounting and connecting the unit have to be followed precisely. If necessary, a service center should be consulted.

All connections for DC power, signal input and speaker outputs can be carried out easily and safely by way of RCA and screw terminals.

INSTALLATION INSTRUCTIONS

This section lists Mounting and Wiring Precautions for installing Cerwin-Vega! XL Series amplifiers. Combined with the experience of a professional installer, these safeguards provide enough detail to successfully complete an installation. If you do not have the necessary skills, do not install the amplifier yourself. Instead, see your authorized Cerwin-Vega! dealer for installation recommendations.

2.Mount the amplifier on a rigid surface. Avoid mounting to subwoofer enclosures or areas prone to vibration. Do not install the amplifier on plastic or other combustible materials.

3.Prior to drilling, make sure proposed mounting holes will not cut into the fuel tank, fuel lines, brake lines (under chassis) or electrical wiring.

MOUNTING PRECAUTIONS

Although Cerwin-Vega! EXL Series amplifiers incorporate heat sinks and protection circuits, mounting the amplifier in a tight space without any air movement can still damage internal circuitry over time. Choose a site that provides adequate ventilation around the amplifier. For easy system set-up, mount the amplifier so the front panel controls will be accessible after installation. In addition, observe the following precautions:

1.For the most efficient cooling, mount the amplifier so cool air runs along the length of the fins rather than across them. Remember, any moving air will dissipate heat.

WIRING PRECAUTIONS

Read all wiring precautions. If you are not sure of the connections, contact your authorized CerwinVega! dealer.

1.Before installation, make sure the source unit Power switch is in the OFF position.

2.Disconnect the negative (-) lead of the battery before making any power connections.

3.When making connections, be sure that each connection is clean and secure. Insulate final connections with electrical

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tape or shrink tubing. Failure to do so may damage your equipment.

4.A secure clean ground connection is critical to the performance of your Cerwin-Vega! amplifier. Use the shortest ground wire possible and securely connect to the car chassis to minimize resistance and avoid noise problems.

5.Add an external fuse on the amplifier’s positive (+) power lead and connect it as close as possible to the vehicle’s (+) battery

terminal. Use a rating that equals the total current consumption at full output of all amplifiers in the system. Adding an external fuse will protect the electrical system from short circuits that can cause a fire.

FEATURES

• 2

& 4 Channel power amplifier

•

Bass boost control

• 4

Ohm stable in bridge mode

•

Thermal protection

• 2

Ohm stable in stereo mode

•

Short circuit protection

•

Low&High level input

•

Remote Turn-on

•

X-over control

•

Protection LED indicator

•

Crossover Switch

• Power on LED indicator

• Gain (input level) controls

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PRECAUTIONS

•This unit is designed for negative ground 12V DC operation only.

•Use speakers with an impedance of 2 or 4 Ohms

•Avoid installing the unit where:

-It would be subject to high temperatures, such as from direct sunlight or hot air from the heater.

-It would be exposed to rain or moisture.

-It would be subject to dust or dirt.

•If your car is parked in direct sunlight and there is a considerable rise in temperature inside the car, allow the unit to cool off before operation.

•When installing the unit horizontally, be sure not to cover the heatsink fins with the floor carpet.

•If this unit is placed too close to the car radio, an interference may occur. In this case, separate the amplifier from the car radio.

•This power amplifier employs a protection circuit to protect the transistors and speakers if the amplifier malfunctions. Do not attempt to test the protection circuits by covering the heatsink or connecting improper loads.

•Do not use the unit with a weak auto battery as its optimum performance depends on a normal battery supply voltage.

•For safety reasons, keep the volume of your car audio system moderate so that you can still hear normal traffic sounds outside your car.

FUSE REPLACEMENT

If the fuse blows, check the power connection and replace the fuse. If the fuse blows again after replacement, there may be an internal malfunction. In this case, consult your dealer.

Warning

Use the specified amperage fuse. Use of a higher amperage fuse may cause serious damage.

Protection Circuit

This amplifier is provided with a protection circuit which operates when:

-the unit is overheated or when the speaker terminals are short circuited.

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WIRING INSTRUCTIONS

POWER CONNECTION

•The battery terminal (BATT) must be connected directly to the positive terminal of the vehicle battery to provide an adequate voltage source and minimize noise. Connecting the battery terminal lead to any other point (such as the fuse block) will reduce the power output and may cause noise and distortion. Use only #12 gauge or thicker (smaller gauge #) wire for this lead and connect it to the terminal of the battery after all other wiring is completed. This connection must be fused at the battery terminal.

GROUND CONNECTION

•The ground terminal (GND) connection is also critical to the correct operation of the amplifier. Use a wire of the same gauge as the power connection (#12 or thicker) and connect it between the ground terminal (GND) of the amplifier and a metal part of the vehicle close to the mounting location. This wire should be as short as possible and any paint or rust at the grounding point should be scraped away to provide a clean metal surface to which the end of the ground wire can be screwed or bolted.

REMOTE TURN-ON CONNECTION

•The amplifier is turned on by applying +12V to the remote turn-on terminal (REM). The wire lead to this terminal should be connected to the “Auto-Antenna” lead from the car stereo which will provide the +12V only when the car stereo is turned on . If the car stereo does not provide an “Auto-Antenna” lead, the remote turn-on lead may be wired to an “Accessory” or “Radio” terminal in the car’s fuse block. This will turn the amplifier on and off with the ignition key, regardless of whether the car

stereo is on or off. The remote turn-on lead does not carry large currents. So #20 gauge wire may be used for this application.

SPEAKER CONNECTIONS

•Depending on the type and number of speakers used with the amplifier wire them to the speaker terminals as per the appropriate wiring diagram. For most applications # 18 gauge wire should be used for the speaker leads but in no case thinner than #20 gauge. For leads is excess of 10 feet #16 gauge is recommended. When wiring the speakers, pay careful attention to the polarity of the terminals on the speakers and make certain they correspond to the polarity of the corresponding terminals on the amplifier. Do not ground any speaker leads to the chassis of the vehicle. Please see your authorized Cerwin-Vega! dealer for specific wire recommendations.

INPUT CONNECTIONS

•This amplifier features both and high low-level input capability. Use either the low-level or highlevel inputs, not both.

•If the car stereo does not provide low-level outputs, the amplifier may be connected via the speaker (high-level). Outputs from the stereo. Wire the speaker leads from the car stereo to the 5-pin adapter harness as shown in the diagram (shielded cables is not required for this application) and plug the connector into the mating high level input connector on the amplifier. Carefully splice and insulate all wire connection.

CAUTION: Use either the low-level or the highlevel inputs on the amplifier. Do not use both input levels at the same time.

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