Cerwin Vega EXL 350.2 Installation Manual

CERWIN-VEGA!
MOBILE AUDIO

POWER AMPLIFIER

Operation and Installation Manual

EXL 200.2
EXL 350.2

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CERWIN-VEGA! EXL 200.2 AND EXL 350.2 POWER SYSTEM AMPLIFIER

TABLE OF CONTENTS

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Input Connections and Audio Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Connections for Power and Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Mounting Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Setting the Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Setting the Crossover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Setting the Bass Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Final System Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Product Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

To start enjoying your new Cerwin-Vega! two­channel amplifier, please read the instructions
listed in this manual. Keep all instructions for
future reference. Please fill out and send in the

enclosed warranty card to protect your purchase
and aid in warranty service. Also, save your
original sales receipt as proof of purchase.

Both the Cerwin-Vega! EXL 200.2 and 350.2
are full-featured two-channel amplifiers
incorporating the following features:

• Advanced circuit design that features
bridgeable and mixed mode operation for use
in various systems, including those with
satellite speakers and/or subwoofers

•Variable high-pass/low-pass electronic crossover
with a 12dB per octave slope and full
adjustable range (from 55Hz to 5.5kHz) to aid
in audio system design

•Variable bass boost circuit to reinforce low

frequency signals that may be lost due to
subwoofer box design

• Adjustable input level controls with ground loop
isolation accepting a wide range of input signals

• Remote turn-on with "soft start" muting to
prevent turn-on "thump"

• Pulse-Width Modulated (PWM) MOSFET
power supply with low AM RFI and protection
circuits for overheating and speaker shorts

• 2-ohm load capability to drive a variety of
speaker systems

• Nickel-plated input/output connectors and an
external automotive type fuse

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.

INTRODUCTION

ABOUT THE MANUAL AND WARRANTY

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1

OPERATION AND INSTALLATION MANUAL

POWER

INPUT

L & R SUM MONO

STEREO

BRIDGED (R IN)

GAIN

CROSSOVER

L

R

FLAT

LPF

HPF

FREQ

Hz

55

110

550

330

240

BASS

BOOST

0

18

dB

FREQ

RANGE

X 10

X 1

1

2

3

45 6 7

The Cerwin-Vega! EXL 200.2 provides 2x75
watts of power into a 4 ohm load and 2x100
watts of power into a 2 ohm load. The EXL

350.2 provides 2x110 watts of power into a 4
ohm load and 2x175 watts of power into a 2
ohm load. These full-featured models are an
excellent choice for a variety of audio sound
system configurations.

The units use an unregulated MOSFET power
supply for superior control of output wattage.
A toroid-coil transformer yields maximum
power transfer with minimum heat loss.

Careful attention to circuit design keeps AM
RFI at low levels, so you won't hear unwanted
noise when the level is cranked up. Protection
circuits safeguard the amplifier when
overheating and speaker shorts or improper
load conditions occur.

All connections and controls of the amplifiers are
on the end panels and are easy to understand.
We use Nickel-plated RCA and barrier connectors
to ensure the best electrical connection for your
system. Included is an external automotive type
fuse that is easy to replace.

1. RCA Input Jacks

2. Gain Control

3. Bass Boost Control

4. Freq (Hz) Selection Control

5. Crossover Frequency Multiplier Switch

6. X-Over Mode Switch

7. Input Select Switch

Figure 1

DESCRIPTION

The front panel of the unit contains connections
for RCA Inputs, Speaker Level Inputs and Audio
Controls as shown below.

The RCA Input Connections are nickel-plated
RCA Jacks and are labeled as RIGHT and LEFT.

INPUT CONNECTIONS AND AUDIO CONTROLS

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CERWIN-VEGA! EXL 200.2 AND EXL 350.2 POWER SYSTEM AMPLIFIER

Gain Control - This allows you to set the nominal

operating level of the amplifier. The amplifier's
range, 250mV to 4V for RCA inputs.

Bass Boost Control - The amplifier also

features a "high-Q" (i.e. narrow frequency band)
Bass Boost circuit. It acts much like an equalizer,
with adjustable gain (from 0 to +18dB) fixed at

45Hz. Use this feature to tune low-frequency
audio response to compensate for a less than
ideal subwoofer enclosure design. The added
boost produces rich, full bass tones that are
normally difficult to reproduce in the car audio
environment. NOTE: If Bass Boost is undesirable,
set Bass Boost to 0dB.

Frequency (Hz) Selection Control - The

crossover frequency is fully adjustable between
55Hz and 5500Hz (via the Crossover Frequency
Multiplier) for a wide range of crossover points.
Use this feature, along with your speaker
manufacturer's recommended crossover frequencies,
to quickly design a more advanced system (see
Applications on page 5.) NOTE: If the X-Over
Mode Switch is set to OFF, varying the Freq (Hz)
Control will produce no effect.

Crossover Frequency Multiplier Switch -

When engaged, this switch increases the crossover
frequency by a factor of 10. Example: If the Freq
(Hz) dial is set for 240 Hz, pushing in the
Multiplier Switch changes the setting to 2400 Hz.

X-Over Mode Switch - This switch is equipped

with a 12dB per octave electronic filter for
precise frequency attenuation with minimal
phase distortion. The steep crossover slope keeps
midrange tones out of the subwoofer and thereby
eliminates an unnatural "nasal" tone quality in
the audio system. A filter is activated by sliding
the X-Over Mode Switch to either LPF or HPF.

Input Mode Switch - This switch allows you to

set the input mode. Stereo input allows full left
and right stereo operation. Right (bridged) input
allows single channel input for bridged operation.
This is especially useful in high-powered systems
when using one amplifier for each subwoofer /
speaker. L + R (sum mono) allows a stereo input
to be summed into a mono output.

HIGH-PASS/LOW-PASS FILTER CONTROLS

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