Boss CHAOS EXXTREME CX750 User Manual

CONTENTS

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 1

U S E R ’ S M A N U A L

2 Introduction

2 What is included?

3 Features

3 About 2 Ohm operation

4 General precautions

4 Installation precautions

4 Mounting the amplifier

5 Connecting the amplifier

6 Low level input wiring

9 High level input wiring

12 2CH Power and Speaker wiring

2CH and Bridged Modes

13 2CH Power and Speaker wiring

TriMode

14 4CH Power and Speaker wiring

4CH and Bridged Modes

15 4CH Power and Speaker wiring

TriMode

16 5CH Power and Speaker wiring

5CH Mode

17 5CH Power and Speaker wiring

Bridged Mode

18 5CH Power and Speaker wiring

TriMode

19 MonoBlock Power

and

Speaker wiring

20 Troubleshooting

21 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

CX250 CX450 CX550 CX750 CX950 CX1250

Two Channel MOSFET Car Audio Amplifiers

CX600 CX650 CX800 CX1000

Four Channel MOSFET Car Audio Amplifiers

CX1800

Five Channel MOSFET Car Audio Amplifier

CX1100M CX2000M

MonoBlock MOSFET Car Audio Amplifier

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 2

Introduction

With the CHAOS EXXTREME MOSFET amplifier series, we are introducing eleven new amplifiers, all designed in the USA. This new series includes a two monoblock amps, six 2-channel, four 4-channel amplifiers and a 5-channel amp.

All CHAOS EXXTREME models feature variable low pass and high pass crossovers and variable input gain controls. They also incorporate an input voltage sensistivity selector for added system flexibility.

For further flexibility in the use of a subwoofer, 0-+18dB Bass Boost control has been included on all amplifiers. You can control the subwoofer level with the remote level control module.

understands that amplifiers are placed in many different kinds of installations, so we incorporated a very flexible system of controls in these amplifiers in order to help you integrate the amp into your system regardless of the nature of your input source.

What is included?

When first unpacking your new amplifier, please check first that the package contains all of the items below. If something is missing, contact the store where you purchased the amplifier.

• CHAOS EXXTREME amplifier

• Remote subwoofer level control

•High input cable with connector

• Four (4) mounting screws

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 3

Features About 2 Ohm operation

Your new CHAOS EXXTREME amplifier features the following:

• Class A-B operation

• Bridgeable outputs (except CX1100M and CX2000M)

• Tri-Mode capable (except CX1100M and CX2000M)

• MOSFET PWM (Pulse Width Modulated) Power Supply

• 2 Ohm stable stereo operation with output power increase

• Thermal and speaker short protection

• Soft turn-on circuit

• Remote turn-on/turn-off circuit

• Variable input gain control

• Variable low pass crossover(s)

• Fixed high pass crossover(s)

• Variable 0 to +18dB Bass Boost

• Nickel-plated RCA low level and high level inputs

• LED power and protection indicators

• Silver anodized heatsink

• Remote subwoofer level control

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.

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 4

General precautions

SHOCK HAZARD! Do not open the case of this product. There are dangerous

voltages present within the unit. There are no user-serviceable parts within the unit.

Before making or breaking power connections in your system, disconnect the vehicle battery. Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals.

If you need to replace the power fuse, replace it only with a fuse identical to that supplied with the amplifier. Using a fuse of a different type or rating may result in damage to your audio system or your amplifier which is not covered by the manufacturer's warranty.

Before installing and using your new amplifier, please become familiar with all the information 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 wire and send the amplifier to your local dealer or service center as soon as possible .

Installation precautions

Before you drill or cut any holes, investigate your car's layout very carefully. Take special care when you work near the gas tank, fuel lines, hydraulic lines and electrical wiring.

Never operate the amplifier when it is unmounted. Attach all audio system components securely to prevent damage, especially in an accident.

Mounting the amplifier

1. Find a suitable location in the vehicle in which to mount the amplifier.

2. Make sure there is sufficient air circulation around the intended mounting location.

3. Mark the location for the mounting hole screws by positioning the amplifier where you wish to install it. Use a scribe or mounting screw, inserted through each of the amp's mounting holes, to mark the mounting surface. If the mounting surface is carpeted, measure the hole centers and mark with a felt tip pen.

4. Drill pilot holes in the mounting surface for the mounting screws. Place the amplifier in position, and attach the amplifier to the mounting surface securely using screws.

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 5

Before doing any wiring, look through this manual and identify the diagrams to follow for power, input and speaker connections for your particular installation. Be sure you understand all the connections before you proceed.

1. Connect the power ground terminal to the closest point on the chassis of the car. Keep this ground wire to less than 39" (100 cm) in length. Use 8 gauge (or heavier) wire.

2. Connect the remote terminal to the remote output of the head unit using 16 gauge (or heavier) wire.

3. Connect an empty fuse holder within 18" (45 cm) of the car battery, and run 8 gauge (or heavier) cable from this fuse to the amplifier location.

4. Check that the fuse holder is empty. Then connect the fuse holder to the "BATT+" connection on the amplifier.

5. If multiple amplifiers are being used in your system, either:

• Run a separate pair of cables from the battery and a chassis ground point to each amplifier. Each (+) cable must have its own inline fuse.

-or-

• Run a #4 cable from the fuse holder at the battery to a distribution block at or near the amplifier's location. Then run separate cables from the amplifier to this distribution block and to independent chassis ground points.

6. Connect all line inputs and outputs (if used) using high-quality cables. Connect all speakers, following the diagrams in this manual. Be sure to observe proper polarity to avoid audio phase problems.

Connecting the amplifier

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.

Do not mistake the input level control for a volume control! It is designed ONLY to match the output level of your audio source to the input level of your amplifier.

Do not adjust this input level to maximum unless your input level requires it.

Ignoring these instructions will result in an input overload to the amplifier, and excessive audio distortion. It can also cause the protection circuit to engage.

Don't misuse the level control!

INPUTS

LOW LEVEL

HIGH LEVEL

CH3/4 CONTROLS

INPUT LEVEL

BASS

BOOST

LOW PASS

FREQ

100

145

155

160

0 +12dBMIN MAX

CROSSOVER

MODE

HIGH PASS FULL RANGE

LOW PASS

FREQ

100

145

155

160

CROSSOVER

MODE

FULL

RANGE

CH1/2 CONTROLS

INPUT LEVEL

MIN MAX

POWER PROTECTION

REMOTE SUBWOOFER LEVEL CONTROL

F OU R C H A NN E L M OS F ET P OW E R A M PL I FI E R

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 6

Low Level Input Wiring

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

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

2-Channel Amplifiers

CX250, CX450, CX550, CX750, CX950, and CX1250

To Audio

Outputs of head

unit or signal

processor

CX600, CX650, CX800, and CX1000

4-Channel Amplifiers

To FRONT Audio Outputs of head unit or signal processor

To REAR Audio Outputs of head unit or signal processor

Remote Subwoofer Level Control

POWER PROTECTION

R+L

INPUTS

LOW LEVELHIGH LEVEL

INPUT LEVEL

MIN MAX

BASS

BOOST

0 +12dB

REMOTE SUBWOOFER

LEVEL CONTROL

100

145

155

160

130

CROSSOVER

HIGH PASS

FULL RANGE

LOW PASS

LOW PASS FREQ, Hz

MODE

LEFT RIGHT

T WO C HA N NE L M O S FE T P O W ER AM P L IF I E R

SENSITIVITY

2-8V100mV-2V

LEVEL

INPUT CONTROLS CROSSOVER BASS BOOST

CH1/2 CONTROLS

MODE

FREQ

LOW PASS

FULL

HIGH PASS

0 +18dB

45 90

CH3/4 CONTROLS

SENSITIVITY LEVEL

INPUT CONTROLS CROSSOVER BASS BOOST

MIN MAX

2-8V100mV-2V

45 90

FREQ

LOW PASS

HIGH PASS

0 +18dB

FULL

MODE

REMOTE SUBWOOFER

LEVEL CONTROL

HIGH LEVEL INPUTS

LOW LEVEL INPUTS

CH3CH

2CH4

CH5 CONTROLS

CH5

INPUTS

5CHR

5CHL

SENSITIVITY

2-8V100mV-2V

LEVEL

INPUT CONTROLS

MIN MAX

5CH

4CH

INPUT MODE BASS BOOST

0 +18dB

CROSSOVER

FREQ

LOW PASSFULL

45 90

POWER

PROTECT

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 7 CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 9

Low Level Input Wiring

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

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

5-Channel Amplifier

CX1800

To FRONT Audio Outputs of head unit or signal processor

To SUBWOOFER Audio Outputs of head unit or signal processor (if present)

Remote Subwoofer

Level Control

To REAR Audio Outputs of head unit or signal processor

LOW PASS

FREQUENCY

CROSSOVER

MODE

FULL RANGE

INPUT CONTROLS

LEVEL SENSITIVITY

INPUTS

LEFT RIGHT

BASS BOOST

REMOTE SUBWOOFER

LEVEL CONTROL

POWER PROTECTION

0 +18dB

100

145

155

160

MIN MAX

2-8V 100mV-2V

LOW LEVEL HIGH LEVEL

R+L

M OS F ET MO N O BL O CK P OW E R A M PL I F IE R

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 8

Low Level Input Wiring

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

NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time!

MonoBlock Amplifier

CX1100M

CX2000M

MonoBlock Amplifier

To Audio Outputs of head unit or signal processor

Remote Subwoofer

Level Control

Remote Subwoofer Level Control

POWER

PROTECTION

R+L

INPUTS

LOW LEVELHIGH LEVEL

LEFT RIGHT

INPUT LEVEL

MIN MAX

BASS

BOOST

0 +12dB

CROSSOVER FREQUENCY

40Hz 120Hz

REMOTE SUBWOOFER LEVEL CONTROL

M OS F ET MO N O BL O CK P OW E R A M PL I F IE R

To Audio Outputs of head unit or signal processor

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