Macrom 44.13 User manual

PROGRAMMABLE

POWER

AMPLIFIER,

GRIOGEASIE

FQR

SlMUilAHEOUS

STEREO.MC'HQ

OUTPUT.

m

INPUT,

OUTPUT.

ELECTRONIC

CROSSOVER.

MOS'FET

POWER

SUPPLY.

DISCRETE

CQMPQNEHTS

FINAL

STAGE

OWNER

S

MANUAL

3

EC'IEN

UN

G

SAN

L.

EI

TUN

G

MANUEL

D

FMPLOI

MANUALE

D^STRUZIONE

MANUAL

DE

IN

ST

RUG

Cl

ONES

CONNECTIONS

/

ANSCHLUSSE

/

CONNEXIONES

/

COLLEGAMENTI

/

CONEXIONES

Fig.

3/Abb.

3

4

1.

The

unit

may

be

damaged

by

wrong

lead

connection,

therefore

read

carefully

the

instructions

of

this

manual

for

the

correct

connection

of

the

leads.

2.

The

last

lead

to

be

connected

is

the

one

to

the

positive

(+)

terminal

of

the

battery;

connect

this

lead

only

after

having

completed

and

checked

all

other

connections.

3.

Due

to

the

power

of

the

44.13

it

is

imperative

that

all

connections

are

clean

and

secure

in

order

to

avoid

damage

to

the

unit.

4.

Be

sure

to

install

the

amplifier

in

a

position

v/ith

good

air

circulation

and

good

heat

dissipation.

5.

In

case

of

fuse

replacement

make

sure

to

replace

it

with

a

fuse

of

the

same

amperage.

The

use

of

fuses

with

the

wrong

amperage

may

seriously

damage

the

components

of

the

unit.

If

fuses

blow

more

than

once,

carefully

check

all

electrical

connections.

Also

have

your

car's

voltage

regulator

checked.

Do

not

attempt

to

repair

the

unit

yourself.

If

repairs

are

ever

needed,

take

the

unit

to

your

MACROM

dealer

or

to

your

nearest

MACROM

service

station.

6.

In

order

to

obtain

the

best

possible

performance

from

this

unit,

make

sure

that

the

temperature

inside

your

car

is

within

the

range

of

-10

C

and

+60

C

before

you

switch

the

unit

on.

Good

air

circulation

is

essential

to

prevent

heat

build-up

inside

the

unit.

7

FEATURES

•

4/3/2

CHANNEL

OPERATION

The

power

of

the

44.13

can

be

subdivided

as

follows:

a)

30

W

RMS

for

each

of

the

four

output

channels

b)

30

W

RMS

on

two

stereo

channels,

and

60

W

RMS

mono

c)

60

W

RMS

on

two

stereo

channels

•

NO

AMPERAGE

LIMITATIONS

The

amperage

limitation

circuits

incorporated

in

traditional

amplifiers

may

cause

untimely

clipping

and

a

low

transient

response.

The

absence

of

such

circuits

ensures

a

low

T.I.M.

effect,

an

excellent

transient

response

and

a

perfect

sound

quality.

•

INPUT

MODE

SELECTOR

This

selector

allows

the

user

to

choose

between

2

or

4

input

signals

to

the

amplifier.

^

•

OUTPUT

MODE

SELECTOR

This

selector

allows

the

user

to

specify

the

number

and

the

configuration

of

the

outputs.

•

INDEPENDENT

SELECTORS

FOR

CROSSOVER

FREQUENCIES

This

control

allows

for

independent

selection

of

the

Low

Pass

and

High

Pass

crossover

frequencies

at

80

or

120

Hz.

•

REMOTE

ON/OFF

On

switching

the

head

unit

on

or

off,

the

amplifier

is

automatically

switched

on

or

off.

•

RCA

INPUT

SENSITIVITY

The

sensitivity

adjustment

of

this

new

amplifier

is

positioned

at

500

mV

for

optimum

coupling

with

other

MACROM

sources.

However,

the

continuous

adjustment

from

100

mV

to

2

V

is

possible

for

easy

coupling

of

other

sources

available

on

the

market.

•

STATUS

INDICATOR

This

LED

shows

the

current

status

of

the

amplifier:

GREEN

fix:

The

unit

works

perfectly

well.

GREEN

blinking:

The

unit

is

in

the

protection

mode,

something

is

wrong.

WHITE:

The

unit

is

off.

•

TRIPLE

PROTECTION

Your

unit

is

provided

with

three

different

protection

devices,

as

befits

all

high-end

products:

SOFT

START:

the

amp

powers

gradually

in

order

to

avoid

damage

to

the

speakers

in

case

the

head

unit

is

switched

on

with

the

volume

control

set

to

maximum.

OVERHEATING:

in

case

of

wrong

installation

the

unit

enters

the

protection

mode

before

being

damaged.

As

soon

as

the

temperature

returns

to

normal

values,

the

unit

resumes

normal,

operation.

I

OUTPUT

SHORT

CIRCUIT:

in

case

of

a

short

circuit

at

the

speaker

outlets

the

unit

enters

the

protection

mode

in

orderto

avoid

serious

damage

to

the

end-stage

transistors.

Normal

operation

is

resumed

on

eliminating

the

short

circuit.

•

FINAL

STAGE

WITH

DISCREET

COMPONENTS

(TRANSISTORS)

•

MOS-FET

SUPPLY

UNIT

The

high

power

of

the

44.13

is

obtained

by

the

use

of

a

highly

sophisticated

C-MOS-FET

supply

unit

giving

constant

performance,

high

efficiency

in

favour

of

lower

current-consumption.

The

results

are

excellent

performance,

a

linear

and

ample

frequency

response

with

high

dynamics.

•

CAPACITIVE

/

INDUCTIVE

POWER

SUPPLY

FILTER

This

filter

reduces

radio

frequency

interferences

(RFI)

and

cuts

off

system

noises

(i.e.

the

whine

of

the

alternator).

•

GOLD-PLATED

RCA-CONNECTORS

•

GOLD-PLATED

SCREW-TYPE

SPEAKER

OUTPUT

CONNECTIONS

8

INSTALLATION

(Fig.

1,

page

3)

Due

to

the

high

power

of

the

amplifier

a

great

amount

of

heat

is

generated

when

the

unit

is

in

use.

Therefore,

it

is

necessary

to

install

the

unit

in

a

place

with

good

air

circulation

or

otherwise

the

amplifier

will

enter

the

protection

mode.

The

most

suitable

place

for

installation

is

the

boot;

obviously,

the

unit

should

not

be

covered

with

carpet

floor

or

similar.

1.

Place

the

unit

at

the

point

of

installation

and

mark

the

position

of

the

four

securing

screws

provided.

2.

Drill

the

screw

holes.

.

,..

,

3.

Place

the

amplifier

in

the

correct

position

and

secure

it

by

means

of

the

four

tapping

screws

provided.

-

NOTE:

Connect

the

ground

lead

to

a

screw

already

provided

on

the

chassis

of

the

car

(marked

with

^

an

'

in

the

figure).

CONNECTIONS

(Fig.

2,

page

4)

(T)

Input

level

adjustment

of

channels

A-B

(D

RCA-input

connector,

channel

B/F

(right)

(5)

RCA-input

connector,

channel

A/E

(left)

(

4

)

Input

level

adjustment

of

channels

C-D

(

5

)

RCA-

input

connector,

channel

D

(§)

RCA-

input

connector,

channel

C

(

7

)

Output

mode

selector

(5)

Input

mode

selector

(

9

)

High-Pass

crossover

frequency

selector

(the

indication

is

referred

to

-3

dB)

(10)

Low

Pass

crossover

frequency

selector

(the

indication

is

referred

to

-3

dB)

CONNECTIONS

(Fig.

3.

pag.4)

@

Positive

output

terminal,

speaker

A,

or

positive

output

speaker

E

@

Negative

output

terminal,

speaker

A

and

negative

output

speaker

B

@

Positive

output

terminal,

speaker

B,

or

negative

output

speaker

E

®

Positive

output

terminal,

speaker

C,

or

positive

output

speaker

F

@

Negative

output

terminal,

speaker

C,

or

negative

output

speaker

D

16

Positive

output

terminal,

speaker

D,

or

negative

output

speaker

F

@

30

A

fuses

@

Power

supply

terminal

+12

V

to

the

battery

(BATT)

@

Negative

ground

connection

terminal

(GND)

.j20)

Terminal

for

remote

switch-on

(REMOTE)

@

Status

indicator

9

CONNECTIONS

CONNECTIONS:

1.

Battery

lead:

Connect

the

terminal

BATT

18

to

the

battery

cable

of

the

car

by

means

of

a

(yellow)

cable

of

adequate

section.

Do

not

connect

this

lead

to

circuits

existing

within

the

electric

system

of

the

car.

In

order

to

avoid

damage

to

the

car

it

is

imperative

that

this

lead

be

fitted

with

a

fuse

(not

provided)

as

near

as

possible

to

the

battery.

This

connection

is

the

to

be

carried

out

last.

2.

Remote

switch-on

lead:

Connect

the

remote

switch-on

lead

(REMOTE)

or

the

control

lead

of

the

power

antenna

coming

from

the

head

unit

(blue)

to

the

REMOTE

20

terminal

of

the

amplifier.

NOTE:

In

case

this

lead

is

not

connected,

the

amplifier

will

not

be

switched

on

when

the

head

unit

is

switched

on.

If

your

head

unit

is

not

fitted

with

an

outlet

for

a

power

antenna,

a

quick-break

lever

switch

(SPST)

shall

be

installed

between

the

power

source

(+12

V)

and

the

remote

switch-

on

lead

and

connected

to

the

REMOTE

20

terminal

so

as

to

provide

for

manual

switch-on

of

the

amplifier.

3.

Ground

lead:

Secure

the

ground

lead

(black)

to

a

clean

spot

on

the

car

chassis

and

to

the

GND

terminal

19

.

Make

sure

that

there

is

electric

continuity

between

this

spot

and

the

negative

terminal

of

the

battery.

The

ground

cable

should

be

as

short

as

possible;

in

case

more

than

one

amps

are

used,

connect

all

ground

connectors

to

one

spot.

4.

Fuse:

In

case

of

fuse

replacement

make

sure

to

replace

it

with

a

fuse

of

the

same

amperage.

The

use

of

fuses

with

the

wrong

amperage

may

seriously

damage

the

components

of

the

unit.

5.

Speaker

outlet

terminals:

Make

sure

to

keep

the

right

polarity

and

phase

on

connecting

the

speakers

(+

and

-).

NOTE:

Non

adequately

isolated

wires

should

never

come

into

contact

with

each

other,

with

metallic

parts

of

the

car

or

with

the

ground

lead.

6.

RCA

input

connectors:

Connect

the

Pre

output

leads

of

your

head

unit

to

the

RCA

input

connectors

by

means

of

RCA

extension

cables

(90.05-90.10-90.25-90.50

by

MACROM).

Make

sure

to

observe

the

right

channel

designation:

left

L

(white)

and

right

R

(red).

SETTINGS

AND

SELECTORS

ON/OFF

MODE

LOW

&

HIGH-PASS

SELECTOR

SWITCH

a)

"OFF/80/120

Hz

Low-Pass"

MODE:

Select

position

80

or

120

Hz

when

you

want

to

use

the

Low-Pass

filter

section;

thus,

only

the

low

frequencies

are

output

at

the

C-D

or

F

outputs.

OFF

BOH/

120Hz

HIC.H-PASS

Jri

OFF

BOH/

120Hz

IOW-PASS

|-OFF

Fttrt

Rmponse

20Hz

20kHz

b)

"OFF/80/120

Hz

High-Pass

"MODE:

Select

the

80/120

Hz

position

when

you

want

to

use

the

High-

Pass

filter

section;

thus,

only

the

medium-high

frequencies

are

output

at

the

A-B

or

E

outputs.

OFF

UOH/

120Hz

HIC.H-PASS

OFF

BOHz

120Hz

|-OFF

Ftal

Rwponw

60Hz

Hign

pass

cutung

120Hz

Hgft

pus

cutting

10

LOW-PASS

50Hz

20kHz

SETTINGS

AND

SELECTORS

INPUT

GAIN

ADJUSTMENT

CONTROL

In

the

mid

position

(click)

an

input

sensitivity

of

500

mV

is

selected

corresponding

to

the

preamplified

outputs

of

MACROM

products.

In

case

the

amplifier

is

to

be

connected

to

a

head

unit

that

is

not

of

MACROM

make

but

is

fitted

with

preamplified

RCA

outputs,

proceed

as

follows:

a)

adjust

the

volume

control

of

your

head

unit

to

3/4

of

maximum

output

level.

b)

turn

the

input

gain

control

by

means

of

a

screwdriver

and

adjust

the

input

gain

from

2

V

to

0.1

V

in

order

to

have

the

maximum

sound

level

with

no

distortion.

NOTE:

Both

adjustments

are

always

activated,

independently

from

the

number

of

inputs,

except

in

case

"c"

described

at

page

12.

O.SV

ni\

GAIN

CONTROL

O.IV

2

V

0.1V

GAIN

(OMROl

#

2

V

0.1V

GAIN

0.1V

2V

O.IV

GAIN

COM

KM

OUTPUT

MODE

SELECTOR

WITH

4

INPUT

CHANNELS

a)

"4CH

input”

"4CH

output"

MODE:

As

your

head

unit

is

equipped

with

four

pre-amplified

outputs

select

the

position

“4CH"

and

connect

the

outputs

to

the

amplifier

inputs

marked

with

the

letters

A

(left),

B

(right),

C

(left)

and

D

(right).

Thus,

the

amplifier

can

be

used

as

a

4-channel

stereo

system,

front

section

A

and

B

and

rear

section

C

and

D,

by

using

the

speaker

outputs

A,

B,

C

and

D.

You

can

then

activate

independently

the

different

sections

of

the

built-in

electronic

crossover

to

obtain

the

High-Pass

outputs

A

and

B

and/or

the

Low-Pass

outputs

C

and

D.

INPUT

INPUT

‘ifi*

laff

INPUT

HIGH-PASS

JR

JR

4CH

KH

2CM

OFF

lOHl

120Hz

OUTPUT

IOW

-PASS

LEFT

RIGHT

LEFT

RIGHT

b)

"4CH

input"

"3CH

output"

MODE:

This

configuration

uses

a

single

44.13

amplifier

as

a

multi-

amplifying

system.

There

are

3

output

channels,

2

stereo

channels

A

and

B.

and

a

third

channel

F

with

a

single

bridged

mono

signal;

they

can

then

be

balanced

by

means

of

the

fader

control

of

your

head

unit.

In

case

you

want

to

use

the

built-in

electronic

crossover,

it

is

possible

to

connect

medium-high

speaker

systems

to

the

A

and

B

outputs

by

placing

the

High-Pass

selector

in

the

80/120

Hz

position,

whereas

a

woofer

system

or

a

powerful

subwoofer

can

be

connected

to

the

output

F

by

placing

the

Low-Pass

selector

in

the

80/120

Hz

position.

INPUT

HIGH-PAW

^

JR

4CH

KH

2CH

Off

BOHz

I20H/

OUTPUT

I

OW-PASS

fe's

1

L

-fir

J

LEFT

RIGHT

MONO

11

SETTINGS

AND

SELECTORS

OUTPUT

MODE

SELECTOR

WITH

2

INPUT

CHANNELS

AND

A

BY-PASS

OUTPUT

a)

"2CH

input"

"4CH

output"

MODE:

As

your

head

unit

is

equipped

with

only

two

pre-amplified

outputs

select

the

position

“2CH"

and

connect

the

outputs

to

the

amplifier

inputs

marked

with

the

letters

A

/

E

(left)

and

B

/

F

(right).

Then

select

the

position

"4CH"

in

order

to

have

4

output

channels,

A.

B,

C

and

D,

respectively,

to

drive

4

speakers.

You

can

then

activate

the

different

sections

of

the

built-in

electronic

crossover

independently

to

obtain

the

High-Pass

outputs

A

and

B

and/or

the

Low-Pass

outputs

C

and

D.

IMPORTANT

NOTE:

Both

input

sensitivity

adjustments

are

activated

and

operate

independently

on

the

respective

outputs.

INPUT

INPUT

■

ef

“iff

INPUT

HIGH-PA

SS

R,

-R

4CH

JCH

2CH

Oil

aOHl

HOHf

OUTPUT

LOW-PASS

l

a"a

l

'a’a'

LEFT

RIGHT

LEFT

HIGHT

b)

"2CH

input"

"3CH

output"

MODE:

This

configuration

uses

a

single

44.13

amplifier

as

a

multi-

amplifying

system.

There

are

3

output

channels,

2

stereo

channels

A

and

B,

and

a

third

channel

F

with

a

single

bridged

mono

signal.

In

case

you

want

to

use

the

built-in

electronic

crossover,

the

outputs

A

and

B

can

be

connected

to

medium-high

speaker

systems

by

placing

the

High-Pass

selector

in

the

80/120

Hz

position,

whereas

by

placing

the

Low-Pass

selector

in

the

position

80/120

Hz

a

woofer

system

or

a

powerful

subwoofer

can

be

connected

to

the

mono

output

F.

IMPORTANT

NOTE:

Both

input

sensitivity

adjustments

are

activated

and

operate

independently

on

the

respective

outputs.

INPUT

INPUT

INPUT

HIGH-PASS

J^

JR

4CH

JCH

2CH

Off

BOH/

I20M/

OUTPUT

LOW-PASS

Q-a-^-b-Q

5)“C—0-d-Q

l

a

ll

a

l

L

^

J

LEFT

RIGHT

MONO

c)

"2CH

input"

"2CH

output

MODE:

This

configuration

uses

the

amplifier

as

a

traditional

and

powerful

2-channel

stereo

system

with

the

output

channels

E

and

F

On

activating

the

electronic

crossover

section

Low-Pass

80/120

Hz

in

this

configuration,

only

the

low

frequencies

are

output

for

driving

two

powerful

subwoofers.

IMPORTANT

NOTE:

With

this

configuration

only

one

of

the

two

input

sensitivity

controls

(the

right

one)

is

activated

for

the

adjustment

of

the

signal

at

the

E

(left)

outputs.

INPUT

INPUT

'iji

"iff

INPUT

HIGH-PASS

JR

JR

4CH

KH

2CH

OH

BOH/

IIOH/

OUTPUT

LOW-PASS

Q—

a—

O

-

b—

Q

Qy-

c—

@y~

d—^

L

^-‘

l

-R-

j

LEFT

RIGHT

12

TECHNICAL

DATA

Maximum

Power.

Nominal

RMS

4

Ohm,

20Hz

to

20

kHz

at

0.1%

THD

"4

CH

Output"

mode.

"3

CH

Output"

mode.

"2

CH

Output"

mode.

Frequency

response

+0,

-IdB.

S/N

IHF-A-weighted.

Crossover

frequencies

LOW-PASS.

HIGH-PASS.

Crossover

slope.

Input

sensitivity/impedance

(for

nominal

power

output)

Control

in

central

position

(click).

Variable

control.

Speaker

impedance.

Power

supply

(

negative

ground

)

Net

Weigh.

Chassis

size.

45Wx4

30Wx4

30Wx2

60Wx1

60Wx2

10-45.000

Hz

100

dB

80-120

Hz

80-120

Hz

12dB/oct.

500mV/10

kOhm

100-2.000

mV/10

kOhm

2CH

4

Ohm

3CH

2

Ohm

4

Ohm

(bridged,

mono)

4CH

2-4

Ohm

14.0V

DC

(11

-16V

permissible)

3.2

kg

235(W)x50(H)x217(D)

mm

Due

to

continuing

improvement,

the

features

and

the

design

are

subject

to

change

without

notice.

13

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