9
BRIDGED MODE
POWER CONNECTION LEADS
Battery
DC 24V
+12V – +24V
+24V REM GND
10
NOTES ON THE POWER SUPPLY:
o
Connect the +24V power input lead only after all other leads have been connected.
o
Be sure to connect the ground wire of the unit securely to a metal part of the car. A lose connection
may cause a malfunction of the amplifier.
o
REM: The unit is turned on by ap12 - +24 Volts to this terminal. This terminal does not
draw heavy current like the two power terminals so a thinner connecting wire is acceptable.
Standard 18 gauge is fine (standard colour: yellow
)
. If the radio is equipped with a power antenna
control wire, it can drive this terminal.
o
Place the fuse in the power supply lead as close as possible to the car battery (max. 30 cm /
11.81”).
o
During a full power operation, maximum current will run through the system. Therefore, make sure
that the leads to be connected to the +24V and GND terminals of the unit respectively must be
larger than 10 gauge (AWG 10).
OPERATION
After the amplifier has been installed and all connections have been made carefully and securely, turn the radio
on so that the amplifier is switched on automatically. After a short power-on period, the amplifier reaches its full
performance. Now turn up the volume slowly using the volume control of the radio. If there is no sound or only a
distorted replay, switch off the radio immediately – the amplifier will also switch off automatically – and check if
all connections have been made correctly.
o
GAIN = INPUT LEVEL CONTROL
The input level control allows the system to work well within a wide range of output level. Choose the
adjustment in the way that you achieve a sound most possibly without any distortion. As a guideline the
following procedure is recommended: Tune in the volume of your car radio to 2/3 of the maximum volume.
Now turn the gain control of the amplifier from “Min” to “Max” direction until you can hear distortions.
Then turn the level control a little back to “Min”. The gain control adjustment if finished now.
o
X-OVER FREQUENCY CONTROL
A)
When the crossover control is in the Low-Pass position, this control becomes active allowing
you to select your crossover point. For example: If you select 30Hz the amplifier will operate
below 30Hz, if you select 250Hz the amplifier will operate below 250Hz.
B)
When the crossover control is in the High-Pass position, this control becomes active allowing
you to select your crossover point. For example: If you select 30Hz the amplifier will operate
above 30Hz, if you select 250Hz the amplifier will operate above 250Hz.
o
CROSSOVER SWITCH
Flat: full range frequency
Low pass: the lower frequency
under
setting point can be pass.
High pass: The higher frequency
above
setting point can be pass.
