DLS ULTIMATE A-series Owner's Manual page 18

WIRING EXAMPLES A6
Connection of two 4 ohm
subwoofers
You can use all DLS subwoofers in this example.
All speakers must be 2-4 ohm. If you have
subwoofer with dual voice coils, connect one
voice coil to each output terminal. For power
cable, speaker cable and fuse size selection we
refer to page 2.
PHASE SHIFT CONTROL
The Phase shift control is variable from 0 to
+180 degrees. With this control you can fine
tune your subwoofers so they play in phase with
the rest of your system.
This feature is extremely useful when fine tuning
the different speakers and amplifiers of a SPL
competition vehicle.
REMOTE BASS LEVEL & PHASE SHIFT
A remote bass level & phase shift control is
included. This allows you to adjust the bass level
and phase shift from the front seat of your car.
Connect it to the socket marked Remote Bass
Level. When using a remote level control you
must activate it by pushing the switch on the left
side of the socket, to IN-position.
Sub Remote Bass
SIGNAL INPUT
sonic Level
IN
IN
LEFT RIGHT
OUT OUT
1 107,3
FM
DLS A6 has a built-in fan for cooling. The fan is
mounted in the bottom plate of the amplifier.
To get the best performance and cooling, mount the
amplifier on spacings. Doing so the fan can get fresh
air for best possible cooling.
The amplifier becomes very hot, especially when
loaded down to 1 ohm. When using 1,33 and 1 ohm
loads we recommend the use of external cooling fans
as well.
18
FUSES
35 A x 2
Fuse
150 A
Phase LP-filter LEVEL
+90 90 3,5V
0 +180 50 125 7,0V 0,2V
Level
Phase
Remote Bass
Level & Phase
control
DC - FEED DLS A6
POWER IN
BAT+ REM GND
POWER
PROTECT
To remote
+ on stereo / CD
Battery
12 volt
Subsonicfilter setting: IN (fixed 25 Hz)
LP-filter setting: 60-80 Hz
Button in
SPEAKERS
+ - + -
Subwoofer Subwoofer
4 ohm 4 ohm
DLS A6 is 1 ohm stable. This means that you can
connect four 4 ohm subwoofers in parallel without
damaging the amplifier. If you have a 4 ohm sub
with dual voice coils you can connect the coils in
parallel, one coil to each amplifier output.
NOTE!
The speaker output terminals are internally
connected in parallel. This is a mono amplifier
so it is not able to connect the outputs in bridge
mode. The double terminals are only for easier
connection of more than one subwoofer.
ULTIMATE A6
POWER IN /POWER CAP
GND POS+
FAN OUT FUSES
35 A x 2
Power
Fan12 V
capacitor