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DLS Svenska AB A7 User Manual

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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
+
+
-
-
+
+
-
-
FM
1 107,3
Pre out
front
Pre out
rear
Button in
HP-filter: 80 Hz
Button out
Button 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
FM
1 107,3
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.