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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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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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OPERATION AND INSTALLATION MANUAL
1
2
3
45 6
L
R
MIN
2
BRIDGED
MIN
4
2
MIN
AMP MAX
+12VGND
REM
40
CONNECTIONS FOR POWER AND SPEAKERS
The rear panel of the amplifier contains power and
speaker connections as shown below.
1. Left Speaker Output
2. Bridged Speaker Output
3. Ground Input
4. Remote Turn-on Input
5. Battery + 12V Input
6. 25 Amp Fuse
Figure 2
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CERWIN-VEGA! EXL 200.2 AND EXL 350.2 POWER SYSTEM AMPLIFIER
INSTALLATION
This section lists Mounting and Wiring
Precautions for installing the amplifier. 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.
MOUNTING PRECAUTIONS
Although the amplifier incorporates 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 and is isolated
from the environment. 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.
2. Mount the amplifier on a rigid surface.Avoid
mounting to subwoofer enclosures or areas
prone to vibration.
3. Prior to drilling, make sure proposed
mounting holes will not cut into the fuel
tank, fuel lines, or electrical wiring.
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 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 amplifier. Use the
shortest ground wire possible and securely
connect to the vehicle battery 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 vessel'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.
6. Refer to Figure 6 when making electrical
connections. Connect the amplifier's
positive (+) lead via a fuse directly to the
positive (+) terminal on the battery. Do not
connect this wire to the vehicle's fuse panel.
Use red-insulated 10-gauge (or larger) wire
for the amplifier's positive (+) power lead
and the same-gauge black-insulated wire
for the ground.
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OPERATION AND INSTALLATION MANUAL
7. When replacing the amplifier 's fuse,
always use one having the same current
rating. Substituting a higher-rated fuse or a
slow-blow type can result in serious
damage to the amplifier.
8. Make sure that your vehicle’s electrical
system (alternator, battery, etc.) is capable
of handling the additional load. If you are
planning a multi-amplifier system, you may
need to add a second battery and possibly
upgrade the alternator with a higher-output
rated model. Consult your authorized
Cerwin-Vega! dealer for recommendations.
9. To avoid noise problems, run the amplifier's
positive (+) power lead along one side of
the vehicle to the battery. Run the remote
turn-on wire and RCA audio cables down
the center, and route the speaker wires
along the remaining side. If wires must
cross, run them perpendicular to each
other.
10. When creating passage holes for the power
wire, use grommets to eliminate any sharp
edges created during drilling. This will
protect the wire from being nicked and
causing a short circuit.
11. Extra cable can cause signal loss and act as
an "antenna" for noise. Use only highquality RCA cables that are no longer than
necessary to make a direct connection with
the source unit or equalizer.
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CERWIN-VEGA! EXL 200.2 AND EXL 350.2 POWER SYSTEM AMPLIFIER
Figure 6 - Electrical connections for the EXL 200.2 and EXL 350.2
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OPERATION AND INSTALLATION MANUAL
SETTING THE GAIN
After completing the installation, follow these
steps to set the Gain Control and then perform
the Final System Checks.
1. Turn the Gain Control all the way counterclockwise.
2. Turn the vehicle’s Ignition Switch to the ON
position. Then turn the ON/OFF Switch on
the source units to the ON position. Set all
Tone or Equalization Controls to "flat"
positions and turn Loudness off.
3. Play a CD or Tape and set the Volume
Control at 75% of full level. NOTE: If the
system uses an equalizer, set its frequency
controls to "flat" positions.
4. Slowly increase the Gain Control. Stop when
you hear a slight distortion of audio.
SETTING THE CROSSOVER
The amplifier features a fully adjustable crossover.
To set the crossover, follow these steps:
1. Using the X-Over Mode Switch, select the
desired mode - LP for Low Pass, HP for High
Pass and OFF for Full Range.
2. Using the Freq (Hz) Control, select the
desired frequency. If the desired frequency
exceeds the range of the Freq (Hz) Control,
press the Crossover Frequency Multiplier
Switch to increase the value by a multiplier
of 10 (For example, 55Hz x 10 = 550Hz or
550Hz x 10 = 5.5kHz.).
SETTING THE BASS BOOST
1. Initially set the Bass Boost control to its full
left position (i.e. 0dB).
2. Listen to a variety of music styles (e.g. Rock,
Rap, etc.) and slowly increase the Bass
Boost control until a noticeable increase in
low bass response is perceived.
3. Slowly adjust the Bass Boost control (up or
down) to realize the best bass response.
CAUTION: If you hear a "pop" (due to speaker
over-excursion), lower the Bass Boost to prevent
speaker damage. If the system sounds muddy and
distorted (due to amplifier clipping), lower Bass
Boost to avoid shutdown from overheating.
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CERWIN-VEGA! EXL 200.2 AND EXL 350.2 POWER SYSTEM AMPLIFIER
Problem: No Audio.
Solution:
• Low or no remote turn-on voltage. Check
remote connections at amplifier and source unit.
• Blown amplifier fuse. Replace with new fastblow fuse (same rating).
•Power wires not connected. Check battery
and ground wiring at amplifier; also check
battery connections.
• Speaker leads shorted. Check speaker
continuity to ground, it should not show a
common ground.
• Speakers not connected or are blown. Check
speaker connections at amplifier, measure
coil impedance.
Problem: Audio cycles on and off.
Solution: Thermal protection circuits are
shutting amplifier off. Check location for
adequate ventilation; consult an authorized
Cerwin-Vega! dealer.
Problem: Distorted audio.
Solution: Gain is not set properly,or damaged
speaker cones. Review Setting Gain; inspect
each speaker cone for signs of damage (i.e.
frozen cone, burning smell, etc.)
FINAL SYSTEM CHECKS
TROUBLESHOOTING
1. Start the engine and turn on the source unit.
After a two-second delay, slowly increase the
Volume Control and listen to the audio. If you
hear any noise, static, distortion or no sound
at all, check the connections,and also refer to
Troubleshooting. Depending on your system
design, the levels may become quite loud
even at low Volume Control settings. Until
you get an "audio feel" of the system's
power, use care when adjusting controls.
2. Turn the Balance Controls to their extreme
positions and listen to the results. Audio
imaging should match control settings (audio
from the left speaker when balance is left).
3. Increase the volume and verify that the
amplifier reproduces audio (at full
frequencies) without distortion. If you hear
distortion, check the connections and verify
that the Gain Control is set correctly.Another
possibility is damaged speakers or underpowered speakers. Once again refer to
Troubleshooting for additional help.
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OPERATION AND INSTALLATION MANUAL
TROUBLESHOOTING (cont.)
EXL200.2 EXL 350.2
Frequency Response 20Hz ~ 20kHz 20Hz ~ 20kHz
Signal Noise Ratio >100dB >100dB
THD .05% all channels driven .05% all channels driven
Input Sensitivity Low Level 250mV ~ 5 V 250mV ~ 5V
4-Ohm Stereo Output 75w x 2 @ .05% THD 110w x 2 @ .05% THD
2-Ohm Stereo Output 100 x 2 @ .05% THD 175w x 2 @ .05%THD
4-Ohm Bridged Power 200 x 1 @ .05% THD 350 x 1 @ .05% THD
Dimensions 2-1/2"H x 9-1/2"W x 10" L 2-1/2” H x 9-1/2”W x 13-1/4” L
Current Consumption at output
@ max power 28A @ 200 Watts 43A @ 382 Watts
Problem: Audio lacks punch.
Solution: Speakers wired incorrectly, which
causes cancellation of bass frequencies. Check
polarity of wires from amplifier to each
speaker as defined by the system design.
Problem: Amplifier fuse keeps blowing.
Solution: Incorrect wiring or short circuit.Review
Installation and check all wiring connections.
Problem: Whining or ticking noise in the
audio with engine on.
Solution: Amplifier is picking up alternator
noise or radiated noise. Turn down input gain;
move audio cables away from power wires.
Check power and ground connections on
amplifier; install an in-line noise filter on
source unit's power wire; check alternator
and/or voltage regulator; test for weak battery
or add water to battery.
PRODUCT SPECS
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9340 De Soto Ave., Chatsworth, CA 91311
Phone: 1-805-584-9332 • Fax: 1-805-583-0865 • Email: info@cerwin-vega.com
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