Clarion Apa2102 User manual

CAR

AUDIO

AMPLIFIER

OPERATION

INSTALLATION

MANUAL

OPERATION/INSTALLATION

MANUAL

INTRODUCTION

Thank

you

for

purchasing

Clarion

APA2102

2-channel

car

audio

amplifier.

You’ve

selected

amplifier

that

one

the

finest

available

the

market

today.

The

APA2102

puts

out

watts

continuous

power

into

4-ohm

load

and

delivers

watts

(typical)

into

2-ohm

load.

also

comes

with

the

following

features:

♦

Full

frequency

response

with

low

distortion

and

exceptional

signal-to-

noise

performance

♦

Advanced

circuit

design

features

bridgeable

and

mixed-mode

operation

for

use

various

systems,

including

those

with

satellite

speakers

and/or

subwoofers

♦

Variable

high-pass/low-pass

electronic

crossover

with

per

octave

slope

and

full

adjustment

range

(from

200

Hz)

aid

audio

system

design

♦

Variable

bass

extender

circuit

reinforce

low

frequency

signals

that

may

lost

due

box

design

♦

Ground

loop

isolation

inputs

with

adjustable

input

level

controls

wide

range

input

signals

♦

Remote

turn-on

with

“soft-start”

muting

prevent

turn-on

“thump”

♦

Regulated

MOSFET

power

supply

with

low

RFI

and

protection

circuits

for

overheating

and

speaker

shorts

♦

2-ohm

load

capability

drive

variety

speaker

systems

♦

Gold-plated

input/output

connectors

and

external

automotive-type

fuse

♦

Aluminum

heat

sink

for

efficient

dissipation

heat

♦

Low

profile,

compact

size

for

space-limited

installations

order

start

enjoying

your

new

Clarion

APA2102

2-channel

car

audio

amplifier

soon

possible,

please

read

the

remaining

pages

plan

your

installation.

When

you’re

finished,

fill

out

and

send

the

enclosed

warranty

card

protect

your

purchase

and

aid

any

service-related

questions.

Also,

save

your

original

bill

sale

proof

purchase.

Introduction

♦

clarion

APA2102

TABLE

CONTENTS

Description

Amplifier

Inputs/Controls/Power

Indicator...

Connections

for

Speakers/Power

.....5

Applications

Bridged-Mono

Subwoofer

System

2-Channel

Full-Range/Satellite/Subwoofer

System.,..7

Mixed-Mode

Satellite/Subwoofer

System

Installation

Mounting

Precautions

............................................9

Wiring

Precautions....

..........................................9

Setting

Gain........................................................

Using

The

HP/LP

Filter

Using

The

Bass

Extender

Final

System

Checks

Troubleshooting

Everyone

Wants

"More

Bass"

......................16

Specifications

....................................................

♦

Table

Contents

OPERATION/INSTALLATION

MANUAL

DESCRIPTION

The

Clarion

APA2102

2-channel

car

audio

amplifier

(shown

Figure

provides

watts

rms

power

into

4-ohm

load

and

watts

(typical)

into

2-ohm

load.

This

full-featured

model

excellent

choice

for

configuring

variety

car

audio

sound

systems.

Figure

Clarion

APA2102

2<hannel

car

audio

amplifier.

The

APA2102

uses

regulated

MOSFET

power

supply

for

superior

control

output

wattage,

regardless

input

voltage

musical

energy

content.

MOSFETs

are

chosen

for

their

inherent

characteristics

provide

superior

accuracy,

stability,

and

control.

toroid-coil

transformer

yields

maximum

power

transfer

with

minimum

heat

loss.

Careful

attention

circuit

design

keeps

RFI

low

levels,

you

won’t

hear

unwanted

noise

when

the

level

cranked

up.

Protection

circuits

safeguard

the

amplifier

when

overheating

and

speaker

shorts

improper

load

conditions

occur.

All

connections

and

controls

are

end

panels

and

are

straightforward

and

easy

understand.

use

gold-plated

RCA

and

barrier

connectors

ensure

the

best

electrical

connection

for

your

system.

Included

external

automotive-type

fuse

that

easy

replace.

Description

♦

clarion

APAZ102

Amplifier

Inputs/Controls/Power

Indicator

The

APA2102’s

front

panel

(see

Figure

has

dual

speaker-level

input

connections,

dual-RCA

input

jacks,

GAIN

control

for

input

level

adjustment,

BASS

EXTENDER,

FREQ

control

for

selecting

crossover

filter

frequencies,

FILTER/BASS

EXTENDER

switch,

MODE

switch

for

STEREO

MONO,

and

POWER

indicator.

Low-Level/Speaker-Level

Inputs

The

APA2102’s

gold-plated

RCA

input

jacks,

labeled

CH1

(L)

and

(R),

provide

connections

for

low-level

stereo

source.

addition,

speaker-level

connections

are

provided

for

installations

where

the

source

unit’s

RCA

outputs

are

unavailable

(see

Specifications

page

for

wire

codes).

Gain

Control

The

GAIN

control

allows

you

set

the

nominal

operating

level

the

amplifier.

The

amplifier’s

wide

range,

200

for

RCA

inputs

400

for

speaker-level

inputs,

can

accommodate

input

levels

from

virtually

any

brand

source

unit.

Bass

Extender

Control

The

APA2102

features

“low-Q”

(i.e.,

wide

frequency

band)

BASS

EXTENDER

circuit,

which

activated

sliding

the

FILTER/BASS

EXTENDER

switch

BASS.

acts

much

equalizer,

you

can

adjust

gain

from

+12

any

frequency

between

and

200

(using

the

FREQ

control).

Use

this

feature

precisely

tune

low-frequency

audio

response

compensate

for

less-than-ideal

subwoofer

enclosure

design.

TTie

added

boost

produces

rich,

full

bass

tones

that

are

normally

difficult

reproduce

the

car

audio

environment.

♦

Description

OPERATION/INSTALLATION

MANUAL

High-Pass/Low-Pass

Filter

Controls

The

APA2102

has

per

octave

electronic

filter

for

precise

frequency

attenuation

with

minimal

phase

distortion.

The

steep

crossover

slope

keeps

midrange

tones

out

the

subwoofer

and

thereby

eliminates

unnatural

“nasal”

tone

quality

the

audio

system.

The

filter

activated

sliding

the

FILTER/BASS

EXTENDER

switch

either

LP.

fully

adjustable

between

and

200

(via

the

FREQ

control)

for

wide

range

crossover

points.

Use

this

feature,

along

with

your

speaker

manufacturer’s

recommended

crossover

frequencies,

quickly

design

advanced

system

(see

Applications

starting

page

6).

Stereo/Mono

Mode

Switch

The

MODE

switch

provides

selection

stereo

mono

operation.

Connections

for

Speakers/Power

The

APA21Q2’s

rear

panel

(see

Figure

contains

speaker

and

power

connections

and

external

fuse.

Speaker

Connections

The

speaker

terminals

are

gold-plated

with

polarity

markings

for

and

MONO

speaker

connections.

Power

Connections

The

power

connections

are

also

gold-plated

and

are

labeled

REMOTE

(for

remote

turn-on

via

source

unit),

GROUND,

and

BATTERY

(+12

Vdc).

automotive-type

fuse

protects

the

amplifier

circuit.

Description

♦

Clarion

APA2102

APPLICATIONS

The

Clarion

APA2102

2-channel

car

audio

amplifier

can

used

variety

system

applications.

Here

are

three

examples

help

plan

your

own

installation

(see

Figures

through

6).

Bridged-Mono

Subwoofer

System

4-ohm

Load

125

Watts

(rms)

(Use

input

and

set

MODE

switch

MONO)

Subwoofer

ohms)

Figure

this

application,

APA2102

bridged

for

mono

operation

drive

subwoofer

with

125

watts

continuous

average

power.

♦

Applications

OPERATION/INSTALLATION

MANUAL

2-Channel

Full-Range,

Satellite,

Subwoofer

Stereo

System

4-ohm

Load

Watts

(rms)

per

channel

(Set

MODE

switch

STEREO)

Figure

this

application,

APA2102

used

2<hannel

amplifier

that

drives

two

full-range

(or

satellite

subwoofer)

speakers

watts

per

channel

into

4ohm

load.

NOTE:

passive

crossover

must

used

with

satellite

speakers.

Applications

♦

elation

APAZ102

Mixed-Mode

Satellite

And

Subwoofer

System

(Set

MODE

switch

STEREO)

Figure

APA2102

can

configured

for

mixed-mode

operation

The

table

provides

component

values

create

dB/octave

crossover

specified

frequencies.

Use

components

that

have

tolerance

and

capacitors

rated

100V.

NOTE:

Choose

the

same

frequency

for

both

high-

and

low-pass

crossovers.

not

overlap

frequencies,

this

may

cause

low

impedances

that

may

damage

the

amplifier.

♦

Applications

OPERATION/INSTALLATION

MANUAL

INSTALLATION

This

section

lists

mounting

and

wiring

precautions

for

installing

Clarion

APA2102

2-channel

car

audio

amplifier.

Combined

with

the

experience

professional

installer,

these

safeguards

provide

enough

detail

successfully

complete

installation.

you

not

have

the

necessary

skills,

not

install

the

amplifier

yourself.

Instead,

see

your

authorized

Clarion

dealer

for

installation

recommendations.

Mounting

Precautions

Although

the

Clarion

APA2102

2-channel

car

audio

amplifier

incorporates

electronic

protection

circuits,

mounting

any

amplifier

confined

space

without

any

air

movement

can

still

damage

internal

circuits

over

time.

Choose

site

that

provides

adequate

ventilation

around

the

amplifier.

For

easy

system

set-up,

mount

the

amplifier

the

controls

and

fuse

will

accessible

after

installation.

addition,

observe

these

precautions:

♦

For

the

most

efficient

cooling,

mount

the

amplifier

cool

air

runs

along

the

length

the

heatsink,

rather

than

across

it.

Remember,

any

moving

air

across

the

heatsink

surface

will

dissipate

heat.

♦

Mount

the

amplifier

rigid

surface

inside

the

vehicle.

not

install

the

amplifier

plastic

other

combustible

materials.

♦

Prior

drilling,

make

sure

proposed

mounting

holes

will

not

cut

into

the

fuel

tank,

fuel

lines,

brake

lines

(under

chassis),

electrical

wiring.

Wiring

Precautions

♦

Read

all

wiring

precautions.

you

are

not

sure

the

connections,

contact

your

authorized

Clarion

dealer.

♦

Before

installation,

make

sure

the

source

unit

power

switch

the

OFF

position.

♦

Disconnect

the

negative

(-)

lead

the

battery

before

making

any

power

connections.

Installation

♦

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