Installation - Monacor HPB-1502 Montageanleitung

2-Channel Car HiFi
Power Amplifier
These instructions are intended for experts with
knowledge in the electrical system of cars (all
chapters) and users without any specific knowl-
edge (chapters 2 and 3) . Please read the instruc-
tions carefully prior to installation and keep them
for later reference .
All operating elements and connections
described can be found on the fold-out page 3 .
1 Operating Elements and
Connections
1.1 Front panel
1 Line OUTPUT jacks;
the fed-through input signal of the jacks
INPUT (2) is available at these outputs (de-
coupled via 1 kΩ)
2 RCA jacks INPUT for the input signal
3 Control LEVEL for input level matching
4 Control BASS EQ for bass boosting up to
12 dB at 50 Hz
5 Control HP for adjusting the crossover fre-
quency of the high pass
6 Control LP for adjusting the crossover fre-
quency of the low pass
7 Switch CROSSOVER for selecting the filters
FULL for full range speakers, no filter switched
on
LP for bass speakers or a subwoofer, low
pass switched on
HP for mid-high range speakers, high pass
switched on
8 Sliding switch OUTPUT for switching between
mono and stereo operation
1.2 Rear panel
9 Ground terminal GND
10 Control input REM for switching on the
power amplifier via a 12 V voltage supply
11 Terminal for the supply voltage +12 V
12 Fuses
HPB-602: 1 × 30 A
HPB-1502: 2 × 30 A
Only replace a blown fuse by one of the same
type!
13 POWER LED
14 LED PROT . lights up when the protective cir-
cuit has been activated:
1 . if a short circuit has occurred at one of the
speaker outputs (15)
2 . if the power amplifier is overheated
15 SPEAKER terminals
2 Safety Notes
The power amplifier corresponds to all relevant
directives of the EU and is therefore marked
with .
•
Be very careful when connecting the car HiFi
power amplifier to the battery . Risk of short
circuit and dangerous high voltage! Therefore,
always screw off the negative terminal from
the car battery prior to connecting the power
amplifier .
•
The power amplifier must be installed at a
mechanically stable place in the car . It must be
skilfully fixed so that it does not get loose and
turn into a dangerous projectile .
6
•
During operation, the unit may become very
hot . Therefore, do not place any objects sensi-
tive to heat near the unit and do not touch the
power amplifier while in operation .
•
For cleaning only use a dry, soft cloth; never
use chemicals or water .
•
No guarantee claims for the unit and no liability
for any resulting personal damage or material
damage will be accepted if the unit is used for
other purposes than originally intended, if it is
not correctly connected or operated, or if it is
not repaired in an expert way .
If the unit is to be put out of operation
definitively, take it to a local recycling
plant for a disposal which will not be
harmful to the environment .
3 Caution with High Volumes
•
Never adjust a very high volume . Extremely high
volumes may damage your hearing .
•
Your ear will accustomed to high volumes
which do not seem to be that high after some
time . Therefore, do not increase a high volume
after getting used to it .
•
While driving in the car, signal sounds, e . g . by
an ambulance, must not be drowned by the
car HiFi system which has been set to a very
high volume .
•
With the motor switched off, the car HiFi sys-
tem should not be in operation at high volume
for a longer period of time . The car battery will
quickly be discharged and may not be able to
supply sufficient energy for starting the car .
4 Applications
The power amplifiers HPB-602 and HPB-1502
have especially been designed for car HiFi sys-
tems and are able to drive two full range speakers
(2-way or 3-way speakers) . The amplifiers provide
two integrated crossover networks; thus, with
an additional power amplifier, it is possible to
implement a 2-way active system with two mid-
high range speakers and two bass speakers or a
subwoofer (bi-amping) . To obtain a higher output
power, the power amplifier can drive one speaker
in bridge operation .

5 Installation

When choosing the place of installation, always
observe the following:
•
The 12 V power supply cable from the battery
to the car HiFi power amplifier should be as
short as possible . It is better to use longer
speaker cables and a shorter power supply
cable instead .
•
The ground cable from the power amplifier to
the chassis of the car should also be as short
as possible .
•
Sufficient air circulation is required to dissi-
pate the heat generated by the car HiFi power
amplifier .
•
As forces occur during braking, the power
amplifier must tightly be screwed to a mechan-
ically stable place .
•
The fuses and the controls must be accessible .
The power amplifier should be installed electri-
cally insulated from the car chassis . Tightly screw
the amplifier with the four fixing brackets at a
suitable place .
6 Connection of the
Power Amplifier
•
The connection of the car HiFi power amplifier
to the electric system of the car must only be
carried out by authorized personnel .
•
To prevent damage in case of a short circuit dur-
ing installation, always screw off the negative
terminal from the car battery prior to connect-
ing the power amplifier .
•
Lay the necessary cables so that their insulation
cannot be damaged .
The complete connection is shown in figs . 3 to
5 on page 3 .
6.1 Power supply
6.1.1 Operating voltage
Connect the terminal "+12V" (11) via a high-
power cable to the positive terminal of the car
battery . To keep the voltage loss by the cable as
low as possible, a cable with the following mini-
mum cross section should be used:
HPB-602: 4 mm 2
HPB-1502: 10 mm , e . g . CPC-100 / RT
2
To protect the newly laid 12 V cable against a short
circuit, insert an additional fuse very close to the
battery (max . cable length to the battery 20 cm):
HPB-602: 30 A
HPB-1502: 60 A
To stabilize the operating voltage for the power
amplifier and thus the resulting power increase
and sound improvement, a power capacitor is
recommended .
6.1.2 Ground connection
Connect the ground terminal GND (9) via a high-
power cable to the ground of the car or preferably
directly to the negative terminal of the car battery .
The cross section of the ground cable should at
least be the same as that of the positive cable:
HPB-602: 4 mm
2
HPB-1502: 10 mm , e . g . CPC-100 / SW
2
Notes:
1 . When using the chassis as a ground connection,
the place used must have a good electrical contact
to the main chassis (e . g . by a sufficient number of
welding points) . Any lacquer at the point of contact
must completely be removed .
2 . To avoid ground loops, the ground of the car radio
must be applied at the place where also the power
amplifier is grounded .
6.1.3 Control voltage for switching-on
The car HiFi power amplifier is switched on and
off by a control voltage of +12 V at the terminal
REM (10) . Connect the terminal REM to the 12 V
control output of the car radio (e . g . connection
for a motor antenna, if necessary, to be connected
in parallel to the motor antenna) .
6.2 Inputs
Connect the two jacks INPUT (2) via cables with
RCA connectors to the corresponding line outputs
at the car radio . If the car radio is not equipped
with line outputs, the speaker outputs of the car
radio can be connected via an transformer (e . g .
FGA-22HQ) to the inputs of the power amplifier .
6.2.1 Bridge operation for the left channel
or right channel
If, in bridge operation, the power amplifier is to
drive a speaker for the right channel or left chan-
nel, connect the two jacks INPUT (2) via a Y cable
(e . g . CBA-25 / SW) to the line output of the right
channel or left channel at the car radio – also
see fig . 4 .