!
!
!
Carefully run the audio signal and remote
switching cables and the Remote Sub Level
Control cable from the head-unit or dashboard
to the amplifier.
To avoid interference pro-
blems, route the RCA interconnects well away
from power cables and other in-car electronics
and wiring harnesses.
Connect the RCA cable
between the regular
(preferably fullrange) pre-out of the head-unit
and the input(s) of the XP500.1.
PLEASE NOTE: It is recommended to use a
full-
range signal
from the head-unit for the RCA
Input of the XP500.1. A lowpass subwoofer pre-
out signal from the head-unit will always cause
a downward shift of the lowpass setting F
LP
on
the amplifier! For pre-out specifications please
consult the manual of your head-unit.
Mount the REMOTE Sub Level CONTROLLER
unit in a convenient position on the dashboard.
Connect the AT&T
(phone type connector)
Remote Controller Cable between the dash-
mount Remote SUB LEVEL Controller and the
respective REMOTE CONTROL INPUT socket
of the XP500.1.
Connect the Remote
(turn on/turn off)
Lead
to
the respective output/input of the head-unit
and the amplifier. The remote lead carries a
+12V switching voltage, that turns your ampli-
fier on or off when the head-unit is turned on
or off respectively. The remote switching helps
prevent unnecessary battery drainage.
Route the ground cable to the GROUND termi-
nal of the amplifier.
In most cases it will be
best to keep the ground cable (-12 V) as short
as possible, i.e. to find a chassis contact very
close to the amplifier.
The chassis contact
point must be absolutely clean and well sand-
papered, i.e. free from rust or paint etc.
The
ground power cable must have the same
cross-section as the positive power cable.
Keep in mind that audible interferences and
problems originating in the power supply of the
amplifier are in most cases ‘leaking-in’ through
the ground contact, not the positive („+12 V”)
power cable!
Run the positive power cable (+12 V) directly
from the positive terminal of the car battery to
the +12 V terminal of the amplifier.
To keep the
power cable as short as possible, it is recom-
mended to route it on the same car side as the
battery is located. Make sure the power cable
makes good contact to the battery, clean the
battery pole from corrosion before connecting
the cable, preferably with a corrosion-resistant
gold-plated terminal.
■
For optimal protection of your car audio
system and your entire car against electrical
fire hazards from a short-circuit
of the main
power cable with chassis ground you must
insert either a fuse(holder) or an automatic
circuit-breaker within the first 30 cm of the
battery.
The fuse type/value should be mat-
ching the limitations of your main power cable
and the requirements of your car audio system,
around a minimum of 60 Ampere with this
amplifier and appropriate power cable cross-
section. Shut off your circuit breaker or do not
install the main fuse until the entire installation
is completed!
Connect the loudspeaker cables
(Subwoofer)
between the subwoofer(s) and the respective
A
and
B
SPEAKER terminals of the XP500.1.
Either of the two or both speaker terminals may
be used as they are mono and parallel. Use
good quality speaker wires of minimum 2,5 mm
2
- preferably however 4,0 mm
2
cross-section.
Be sure to follow correct polarity
(
A
to
A
;
B
to
B
) and check the respective instruc-
tions of your subwoofers.Tighten the retention
screws on the amplifier using the supplied
M6 allen wrench key.
Subwoofer Impedance Specifications
The XP500.1 has been designed to operate
with a
minimal subwoofer impedance load of
2 Ohms.
Of course you may also use
two sub-
woofers of min. 4 Ohms in parallel (4+4 Ohms).
Close the electrical circuit by closing the cir-
cuit breaker or inserting the main fuse.
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