Filter
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19
Filter settings:
Front: HP-filter 80 Hz or fullrange
Rear: HP-filter 80 Hz or fullrange
LP-filter OUT
Sub: LP-filter 70-80 Hz
Use one, two or three RCA-cables
for signal from head unit to amplifier.
See page 6 for detailed instructions
ULTIMATE A7
Example 1: Speaker wiring with front speakers, rear speakers and one or
more subwoofers
WIRING EXAMPLES A7
Amplifier front
x 20
x 1
HP
x 1
x 10
LP
Input
Front Rear
Input
Sub
Input to
front, rear
& sub
Input to
rear
& sub
Sub input
common
Sub input
separate
Switch settings in this example
HP: x1
LP: x1
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: 80 Hz
Button outButton in
HP-filter: 80 Hz
LP-filter not in use.
DC - FEED DLS A7
For DC-feed, see page 4
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
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.
A7 IN BRIDGE MODE
You can connect the stereo channels in
bridge mode if you prefer. Connect between
L+ and R- on the respective channel pair.