Boss Audio Systems CX350 - Manual

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Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then
plug in the component driving the amplifier and unplug its inputs. If the
hiss disappears at this point, go on until the faulty/noisy component is
found.
It is best to set the amplifier's input level control as low as possible. The
best subjective signal-to-noise ratio is achieved in this manner. Try to set
the head unit as high as possible (without distortion) and the amp input
level as low as possible.

Squealing noise
from speakers.

Check for improperly grounded RCA interconnects.

Distorted sound.

Check that the Input Level Control is set to match the signal level of the
head unit. Always try to set the Input Level as low as possible.

Check that all crossover frequencies are properly set.

Check for short circuits on the speaker leads.

Amplifier gets
very hot.

Check that the minimum speaker impedance for the amp model is correct.

Check that there is good air circulation around the amp. In some
applications, it may be necessary to add and external cooling fan.

Engine noise
(static type)

This is usually caused by poor quality RCA cables,which can pick up
radiated noise. Use only the best quality cables, and route them away
from power cables.

Engine noise
(alternator
whine)

Check that speaker leads are not shorted to the vehicle chassis.

Check that the RCA grounds are not shorted to the vehicle chassis.

Check that the head unit is properly grounded.

7. Insert fuse(s) into the battery fuse
holder(s).

8. Recheck all connections before
powering up the amplifier.

9. Set all level controls to minimum
position, and set all crossover
controls/switches to the desired
frequency points.

10. Power up the head unit and the
amplifier. Then set the volume control
on the head unit to about 3/4 volume,
and adjust the amplifier’s input level
control(s) to just below the level of
distortion.

11. Further fine tuning of the various
controls may be necessary to obtain
best results.

Your CHAOS EXXTREME amplifier
has been designed to operate
efficiently at loads down to 2 Ohms.
This means that you can install four
8 Ohm speakers per channel,

when

using parallel wiring.

Increasing the number of woofers per
channel at low frequencies (below
100Hz) produces an acoustic coupling
effect. This acoustic coupling effect
increases your power output by about
3dB per speaker, or the equivalent of
an additional 10W per speaker.

When operating at 2 Ohms, the
amplifiers will increase their output
power by approximately 50%.

The

current draw will also increase by
about the same amount, so be sure
you have enough current to run the
amplifiers into a 2 Ohm load.

If you lack adequate current, your
music reproduction will be distorted.

Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.

To Audio Outputs

of head unit or

signal processor

Before installing and using your
new

amplifier, please be-

come familiar with all the infor-
mation contained in this manual.

Please keep this manual in a safe
place for future reference.

• Do not open or attempt to repair
this unit yourself. Dangerous high
voltages are present which may result
in electric shock. Refer any repairs to
a qualified service technician.

• To avoid risk of electronic shock or
damage to the amplifier, do not permit
any of this equipment to become
damp or wet from water or drinks. If
this does occur, immediately unplug
the power wires and send the amplifier
to your local dealer or service center
as soon as possible.

• If there is smoke or any peculiar
odor present during use or if there is
damage to any of the component
enclosures, immediately unplug the
power cord and send the amplifier to
your local dealer or service center as
soon as possible .

Introduction

What is included?

Features

About 2 Ohm operation

General precautions

Installation precautions

Mounting the amplifier

Connecting the amplifier

Low level input wiring

High level input wiring

Power and Speaker wiring

Troubleshooting

Specifications

Congratulations on your

purchase of a
CHAOS EXXTREME Amplifier.

It has been designed, engineered
and manufactured to bring you
the highest level of performance
and quality, and will afford you

years of listening pleasure.

Thank you for making
your choice for car audio
entertainment!

page

CX150

Two Channel
High Power Car Audio
Amplifier

CX350

Four Channel
High Power Car Audio
Amplifier

RMS POWER

into 4 Ohms

MAX POWER

into 2 Ohms

Min. speaker
impedance

THD

Frequency response

Signal-to-noise ratio

Channel separation

Fuse rating

Dimensions:
(9

-7/8

" x 2

-3/16

" x ...)

MODEL

CX150

Tw o C h a n n el
C a r A u d i o A m p l i f i er

CX350

F ou r C h a n n el
C a r A u d i o A m p l i f i er

All specifications subject to change without notice.

SYMPTOM

POSSIBLE REMEDY

Two
Channel
Mode

Four
Channel
Mode

To Speaker Terminals
of head unit

50W x 2

100W X 2

2 Ohms

0.01%

12Hz-22kHz

90dB

60dB

7.5A x 1

6-1/8"

To Speaker Terminals
of head unit

50W x 4

100W X 4

2 Ohms

0.01%

12Hz-22kHz

90dB

60dB

15A x 1

7-3/4"

To Audio

Outputs of head

unit or signal

processor

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Summary

Page 2 - CONTENTS; when; Congratulations on your; page; into 4 Ohms; MODEL; All specifications subject to change without notice.; SYMPTOM; • CHAOS EXXTREME amplifier

Troubleshooting CHAOS EXXTREME Amplifier User’s Manual - page 10 Specifications CHAOS EXXTREME Amplifier User’s Manual - page 11 CHAOS EXXTREME Amplifier User’s Manual - page 8 CHAOS EXXTREME Amplifier User’s Manual - page 6 CONTENTS CHAOS EXXTREME Amplifier User’s Manual - page 1 U S E R ’ S M A N ...

Page 3 - • Soft turn-on circuit

Page 4 - There are dangerous