FM1 107,3
+
+-
-
Subwoofer
4 ohm
Pre out
front
Pre out
rear
Fuse
150 A
Power
capacitor
Fan 12 V
RIGHT FUSES
25 A x 2
25
25
25
25
LEFT FUSES
25 A x 2
+
Battery
12 volt
To remote
on stereo / CD
POWER IN
BAT+ REM GND
POWER IN /POWER CAP
GND FAN OUT POS+
PROTECT
POWER
DC - FEED DLS A4
HP-filter HP-filter HP-filter LP-filter LP-filter LEVEL
OUT
IN
90
50 125
1X
3X
3,5V
7,0V 0,2V
100
20 200
OUT
IN
FRONT SPEAKERS
+LEFT- +RIGHT-
FRONT INPUTS
LEFT RIGHT
REAR SPEAKERS
+LEFT- +RIGHT-
REAR INPUTS
LEFT RIGHT
OUT
IN
OUT
IN
100
20 200
3,5V
7V 0,2V
100
20 200
LEVEL LP-filter LP-filter LP-filter HP-filter HP-filter
1X
2X
Button in Button out
Button out
HP-filter setting: 80-100 Hz
LP-filter not in use
Button out
If you use both DC-inputs for the DC feed,
connect a Fuse block with two 70 Amp fuses, one
for each input.
DLS A4 is 1 ohm stable. This means that you can connect two 4
ohm subwoofers in parallel without damaging the amplifier. Two 4
ohm subwoofers connected in parallel results in a 2 ohm load which
the amplifier sees as a 1 ohm load.
If you have a 4 ohm sub with dual voice coils you can connect the
coils in parallel.
1. Connecting a front
system in stereo and a sub-
woofer in mono bridge mode.
You can use all DLS coaxial, 2-way,
3-way systems and subwoofers in this
example.
All speakers must be 4 ohm.
If the head unit has only one pre out a
Y-cable must be used.
For power cable, speaker cable and fuse
size selection see page 4.
Button in
Button in
HP-filter setting: 30 Hz
LP-filter setting: 70-80 Hz
Use a 2 mm hexagon key
to speaker terminals.
Use a 2,5 mm hexagon
key to DC input terminals
on A1
Use a 4 mm hexagon key
to DC input terminals on
A2, A3, A4
WIRING EXAMPLES A4
ULTIMATE A4
14
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