Specifications

++
-
-
+
2 ohm
Two speakers in parallel
Only for stereo mode, not bridge mode.
Two speakers in series.
8 ohm
+
+
+
-
--
We don´t recommend this connection.
Four speakers in series/parallel to 4 ohm.
4 ohm
+
+
-
+
-
-
+
-
+
-
Each
speaker
is 4 ohm
1,3 ohm
-
-
+
+
+
-
+
Each
speaker
is 4
ohm
-
Three speakers in parallel
Only for Five Channel monokanal & Monoblock
SPEAKER CONNECTION
Always use high quality speaker cables such as DLS
SC 2x1,5, SC 2x2,5 or SC 2x4. Subwoofer connection
requires 2 x 4 mm
2
cable.
Connect the speaker + (marked with + or a red dot)
to the amplifier + terminal, and the speaker - to the
amplifier -.
When fitting the cables to the amplifier terminals,
remove only 10 mm of the insulation. Twist the wire
strand together and insert the wire after loosening
the terminal screw. Do not over tighten as this can
cut the cable strands.
If you want an extra high class speaker cable choose
any of the DLS SCP, SCK, SC 4x1 or SC 4x1,5
cables.
+
-
+
-
Batteri
1,5 Volt
NOTE! You cant test tweeters in this way.
26
DLS Z-MATCH
If you have problems to match your speaker
impedance to your amplifier we recommend the use
of an impedance matching transformer.
DLS ZM1 is such a product. It´s a transformer with
different taps. By connecting it in different ways you
will get different impedance ratios.
For example it´s possible to connect four 4 ohm subs
in series to 16 ohms, and still get a 4 ohm load on the
amplifier.
SPEAKER POLARITY CHECK.
All speakers in a car audio system should be
connected in phase (the same polarity). All speaker
cones must move in the same direction. Out of phase
speakers will cause a lack of bass, and a poor stereo
soundstage.
Checking polarity:
Hold the - connection of the speaker wire to the - ter-
minal of a 1,5 Volt flashlight battery. Tap the + wire on
to the + terminal of the battery, and observe the
movement of the cone. The cone should move
outwards when the wire touches the battery, and
inwards when the battery is removed. If it is the other
way around, the speaker has been connected
backwards and it must be removed and connected
correctly.
If your system also has a subwoofer connected
through a passive 6 or 12 dB crossover, try to connect
this with various polarity and judge what sounds best.
The phase shift in passive crossovers sometimes
makes it necessary to change polarity.
SPEAKER LOADS
Most car audio speakers have a 4 ohm impedance.
DLS amplifiers can be loaded down to 2 ohm on each
stereo channel.
In mono bridge mode operation the speaker load must
never be less than 4 ohm. If you are using more than
one driver they must be connected in a way so the
impedance still is 4 ohm when connected to the
amplifier. When you run the amplifier in mono bridge
mode it sees a 4 ohm load as 2 ohm. On page 4 you
find different speaker wiring examples.
Don´t forget that the output power from a multimode
connected amplifier is more than double the normal
power. The speakers must be able to handle this
power.