Filter
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On the following pages you find some examples of how to connect the amplifier for different use. The
drawings show normal level and filter settings.
Remote
Pre out
DLS A2 can be connected in different ways:
1. As a stereo amplifier connected with a speaker system of coaxial, 2-way or 3-way type.
Two speaker systems can be connected in parallel, one front and one rear system.
2. As a subwoofer amplifier with max two 4 ohm subwoofers in mono bridge mode. The built-in lowpass
crossover is used. (Connect to L+ and R-).
DLS A2 has an inbuilt adjustable lowpass filter that should be set to approx. 70-80 Hz.
1. One speaker pair
connected in stereo
You can use all DLS coaxial, 2-way
or 3-way systems in this example.
The speaker impedance must be 4
ohm.
For power cable, speaker cable and fuse
size selection we refer to page 4.
+
+
-
-
FM1 107,3
Fuse
60 A
Battery
12 volt
+
DLS A2
HP-filter LP-filter LEVEL
7,0V 0,2V
3,5V
OUT
20
200
100
Hz
IN
OUT
50
125
90
Hz
IN
Highpass filter
not in use.
Lowpass filter
not in use.
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.
Both
buttons
in out
position
Use a 2 mm hexagon key to speaker terminals.
Use a 4 mm hexagon key to DC input terminals on
Wiring examples DLS A2
ULTIMATE A2
10
3,5V
7,0V 0,2V
HP-filter LP-filter LEVEL
100
20 200
OUT
IN
90
50 125
OUT
IN
SIGNAL INPUT
LEFT RIGHT
SPEAKERS
+LEFT- +RIGHT-
FUSE
30
POWER
PROTECT
POWER IN
BATT+ REMOTE GND