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Example 4: Speaker wiring with acive/passive crossover to a 3-way front
speaker system and one or more subwoofers
Filter settings:
Front: HP-filter 400 Hz with x20-
switch in x1 position
Rear: HP-filter 80 Hz or fullrange
LP-filter IN, setting 400 Hz with
x10 switch in position x1
Sub: LP-filter 70-80 Hz
Use one, two or three RCA-cables for
signal from head unit to amplifier.
See page 5 for detailed instructions
Button InButton in
Midrange and tweeters with active
highpass x-over setting at 400 Hz.
Passive x-over between
midbrange and tweeters
Switch settings in this example
HP: x1
LP: x1
ULTIMATE A7
Midbass with active lowpass x-
over setting at 400 Hz.
Amplifier front
x 20
x 1
HP
x 1
x 10
LP
Input
Front Rear
Input
Sub
FRONT SPEAKERS
+LEFT- +RIGHT-
REAR SPEAKERS
+LEFT- +RIGHT-
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
3,5V
7V 0,2V
3,5V
7V 0,2V
LEVEL
x20 change
by bottom switch
240
80 400
Hz
OUT
IN
HP-filter
240
80 400
Hz
OUT
IN
HP-filter
2
0,3 4
kHz
OUT
IN
LP-filter
LEVEL
x10 change
by bottom switch
FM1 107,3
Pre out
front
Pre out
rear
Button in
HP-filter setting:
400 Hz
HP-filter setting: 80 Hz
LP-filter setting: 400 Hz.
Filter
box
+
-
+
-
-
+
-
+
Filter
box
+
+-
-
WIRING EXAMPLES A7
DC - FEED DLS A7
For DC-feed, see page 4
If you have problems with the mid
bass driver ”reaching the bottom”
(the voice coil touches the bottom
pole plate) at high volumes, use
the HP-filter to avoid this with a
setting at 50 - 80 Hz or higher.
Make your own tests.
LP-filter: 70- 80 Hz
Subwoofer
2 - 4 ohm
Remote Bass Level
& Phase control
Phase
Level
SUB-WOOFER
+ SPEAKERS -
Low-pass LEVEL
3,5V
7,0V 0,2V
90
50 125
O 180
Degree
90
PHASE
FILTER
FM1 107,3
Level
OUT
IN
SIGNAL INPUT
LEFT SUB RIGHT
Remote Bass