GB
8
Please unfold page 3. Then you can always see the
operating elements and connections described.
Contents
1
Operating Elements and Connections . . . . . 8
2
Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Caution in Case of High Volumes . . . . . . . . . 9
4
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Connecting the Booster . . . . . . . . . . . . . . . . 9
6.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1.1 Terminal “+12v” . . . . . . . . . . . . . . . . . . . . . . . 9
6.1.2 Terminal “ground” . . . . . . . . . . . . . . . . . . . . . 9
6.1.3 Terminal “rem” . . . . . . . . . . . . . . . . . . . . . . . . 9
6.2 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.3 Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.3.1 2-channel operation . . . . . . . . . . . . . . . . . . . 9
6.3.2 Bridge operation . . . . . . . . . . . . . . . . . . . . . 10
6.3.3 Tri-mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7
Setting into Operation . . . . . . . . . . . . . . . . . 10
7.1 Switching on the filter and adjusting the
crossover frequency . . . . . . . . . . . . . . . . . . . . 10
7.2 Matching the level . . . . . . . . . . . . . . . . . . . . . 10
8
Trouble Shooting . . . . . . . . . . . . . . . . . . . . . 11
8.1 No LED lights up . . . . . . . . . . . . . . . . . . . . . . 11
8.2 Green LED “power” lights up . . . . . . . . . . . . . 11
8.3 Red LED “protection” lights up . . . . . . . . . . . . 11
9
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 11
1
Operating Elements and Connections
1 Indication “protection” lights up with activated pro-
tection circuit:
1. approx. 3 seconds after switching-on (switch-on
delay)
2. if one of the speaker outputs (13) is short-circuited
3. if the amplifier is overheated
2 POWER LED
3 Switch for the filters
LOWPASS: low pass switched on (for subwoofer)
HIGHPASS: high pass switched on (for mid-high
range speakers)
FLAT:
no filter switched on (for full range
speakers)
4 Trimming control for input level matching
5 Trimming control for the crossover frequency of the
low pass
6 Trimming control for the crossover frequency of the
high pass
7 (only in case of HPB-1002) control “bass boost” for
boosting of the bass frequencies
8 Line inputs (L/R)
9 Fuse 15 A (HPB-502) or 25 A (HPB-1002);
only replace a blown fuse by one of the same type
10 Connection for the supply v12 V
11 Control input “rem” for switching on the car HiFi
booster via a 12 V voltage
12 Connection “ground”
13 Speaker terminals
2
Safety Notes
The unit corresponds to the directive 89/336/EEC for
electromagnetic compatibility.
●
When connecting the car HiFi booster to the car bat-
tery, be especially careful. In case of short circuits
there may be very dangerously high currents.
Therefore, prior to the connection it is essential to
screw off the negative terminal of the car battery.
●
The booster must be mounted to 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.
●
During operation the booster can become very hot.
Therefore, do not place any objects sensitive to heat
close to the booster and do not touch it while in
operation.
●
For cleaning only use a dry, soft cloth, by no means
chemicals or water.
●
If the booster is used for purposes other than
originally intended, if it is not correctly operated or
connected or not repaired in an expert way, no liabil-
ity can be taken over for any possible damage.
●
If the unit is to be put out of operation definitively, it
must be disposed of in a local recycling plant.
