Contents
Caution………………………..……..
Installation…………………….…….
Tools and materials needed……….
Amplifier installation kit…………....
Routing Wires……………………....
Wiring
2
2
3
3
3
How to install and
operate the
Power terminals.....……………..….
Inputs and controls…….…………...
Input wiring...................................
Input level control..........................
Phase control................................
Remote bass level.........................
Protection circuits..........................
Input & controls A7…………...........
Crossovers / filters……………….....
Crossovers / filters A7....................
Professional tips............................
4
5
5
5
5
5
5
6
7
8
9
DLS ULTIMATE
A-series amplifiers
A1, A2, A3, A4, A5,
A6, A7 & A8
Welcome!
Wiring examples:
This owners manual is written in easy english and
uses a lot of drawings to simply the installation and
use of the above amplifiers.
DLS A1 & A2................................. 10-11
DLS A3......................................... 12-13
DLS A4......................................... 14-16
DLS A5......................................... 17
DLS A6......................................... 18
DLS A7......................................... 19-22
DLS A8......................................... 23-24
Your DLS amplifier must be installed correctly in
order to work well. This manual will show you how
to install the amplifier like a pro. Please read the
entire manual before beginning the installation.
Install the amplifier yourself if you feel confident with
our instructions and if you have the proper tools.
However if you feel unsure, turn over the installa-
tion job to someone better suited to it.
Testing………………………………..
Trouble-shooting…………………….. 25
Specifications………………………... 26-27
25
Warranty Service
Approval of electromagnetic compatability
according to the EEC Directive 95/54/EC for
DLS A1, A2, A3, A4, A5, A6, A7 & A8.
This amplifier is covered by warranty, depending
on the conditions in the country where it is sold. If
the amplifier is returned for service, please include
the original dated receipt with the product.
E 11 Approval No: 10R-020962
ꢀ
Technical Assistance
For technical assistance ask the shop where the product
was sold, or the distributor in your country.
You can always phone the DLS Helpdesk in Sweden
+ 46 31 84 00 60 or send an e-mail to [email protected].
Information can also be found on our WEB-site
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ULTIMATE A-series
Tools and material needed
Routing wires
Tools:
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
Flat and Phillips screwdrivers
Wire cutter
Wire stripper
Electric drill with drills
Crimping tool
Digital multimeter or test lamp
Wire brush, scraper or a piece
of an abrasive sheet to remove
paint for a good ground connection
Grease to protect the ground
connection from oxidation
ꢁ
Stereo
head unit
Material:
ꢁ
Speaker wire: minimum
12 AWG = 4 mm2 for subwoofers
13 – 16 AWG = 1,5-2,5 mm2 for other
speakers
ꢁ
Sheet metal screws for mounting the
amplifier to the amplifier board and the
amplifier board to the car + some extra
for fuse holder, amplifier ground etc.
ꢁ
ꢁ
Electrical insulation tape
½ inch thick plywood or particle board for
the amplifier to be mounted upon.
Amplifier installation kit:
If available,buy an amplifier installation kit. It
contains normally all you need. This is what you
have to buy if you buy the items separately
ꢁ
20- 25 feet = 6- 7.5 meter power cable,
preferablyAWG 5 = 16 mm2 or heavier. See
the table on previous page to find out what
cable size you need.
ꢁ
1 pc of fuseholder to install close to the
car battery + fuse 80 Ampere, or other value
depending on what cable and amplifier you
use. See the table on page 2.
ꢁ
ꢁ
20 feet of AWG 15 = 1,5 mm2 wire for
remote turn on / off cable from head unit.
Professional Tip:
RCA-cable for input from head unit.
- 20 feet or 5 meter for trunk installations
You can connect all inputs together and use
only one RCA-cable, or use separate wires
to each input.
Gauge (ga) is anAmerican measure for cable size,
also calledAWG (American Wire Gauge).
CONVERSION GAUGE - mm2
ꢁ
Two min. 5 gauge ring crimp terminals –one
for connection to the battery plus and one
for the amplifier ground connection.
0 AWG = 50 mm2
1 AWG = 42 mm2
2 AWG = 33 mm2
3 AWG = 27 mm2
4 AWG = 21 mm2
5 AWG = 16 mm2
6 AWG = 13 mm2
7 AWG = 10 mm2
8 AWG = 8 mm2
9 AWG = 6,8 mm2
10 AWG = 5,3 mm2
11 AWG = 4,2 mm2
12 AWG = 3 mm2
13 AWG = 2,7 mm2
14 AWG = 2 mm2
15 AWG = 1,65 mm2
16 AWG = 1,3 mm2
ꢁ
ꢁ
Wire ties
Insulating grommet or insulating tube
3
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ULTIMATE A-series
Remote terminal ( REM )
For RCA cable signal input:
Connect the radio power antenna lead = remote turn
on/off from the head unit to the amplifier remote
connection. This turns on the amplifier whenever
the car stereo is turned on.
Wiring
Power, remote and fan terminals
You can either use the built in remote cable in the
RCA cable itself, or use a separate cable.
Sometimes a small disturbance may enter the
amplifier coming from the remote voltage, through
the built in remote wire and into the RCA cable. Thus
we recommend to use a separate remote wire and
run the RCA lead separate from remote wire, power
cables and speaker cables.
Power terminal for A1, A2, A5, A7, A8
Connect the fuse holder as close to the vehicle battery
+ as possible, usingAWG 5 = 16 mm2 or heavier cable
(see table on page 2). Use ring crimp terminal cable
to connect to battery +. Apply silicon grease to the
fuse to prevent corrosion.
POWER IN
BATT+ REMOTE GND
You can insert the cable directly into the amplifier
terminal. If there is no remote voltage available from
the stereo, you must connect to the ignition key,
through the radio, or any accessories fuse.
DLS
POWER IN
BATT+ REMOTE GND
Battery 12V
DLS FH1B
or FH2B
FM1 107,3
fuse holder
Connect the battery cable to the +12 Volt terminal
on the amplifier. Model A2,A5 andA7 acceptsAWG
4 = 21 mm2 direct into the terminal, A1, and A8
acceptsAWG5 = 16 mm2 direct into the terminal. Be
sure to use a rubber grommet or a plastic insulating
tube where the cable passes the firewall or other
places where it can easily be jammed.
Ground Terminal ( GND )
Connect to a good chassis ground. The ground
connection should be clean, unpainted metal to prov-
ide a good electrical connection. Use a wire brush, a
scraper or a piece of an abrasive sheet to clean the
metal. Use a lock washer or two to secure contact.
Protect with silicon grease or by paint applied
Use wire ties to secure to existing cables in the engine
compartment.
afterwards.
POWER IN
BATT+ REMOTE GND
Power terminal for A3, A4 & A6
POWER IN /POWER CAP
GND FAN OUT POS+
POWER IN
BAT+ REM GND
POWER
Fan terminal
PROTECT
FAN
DLSA3, A4, A5, A6 andA7 has a fan
-
+
output terminal. OnA3,A4 andA6 the
terminal is combined with the extra
DC-terminal. The output is
electronically controlled and starts if
the amplifiers is overheated. The ter-
minal is marked "FAN”.
Fuse
150 A
To remote
on head unit
+
Use a 12 volt DC fan.The speed of
the fan increases when the tempera-
ture rises. Direct the fan towards the
amplifier cooling ribs. Full speed is
obtained at 70 degrees C. NOTE!
Maximum load on the FAN terminal
is 0,5 Amp.
Power
Fan12 V
Battery
12 volt
capacitor
Fan 12 V
These models have double DC inputs. The termin-
als are internally connected so it´s enough to connect
just one of them. If you want to reduce the voltage
drop to the amplifier, use both inputs. The extra DC
input can also be used for the connection of a Power
Capacitor or an extra battery. See the example above.
These amplifiers requires a powerful fuse holder like
the FH2B with an ANL 150 Amp fuse (when using
2AWG / 33 mm2 power cable).
Fuses
Use only ATC blade type
fuses. Make sure to replace
with the same value. The
value is printed above the
fuse holders. DLSA4 has no
internal fuses, use an
external fuse instead.
4
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ULTIMATE A-series
Phase control on A5, A6 and A7
Input and controls
Input Wiring
Inputs are low level from the RCA output of the head
unit.
The phase control on can be set
continuously from 0 - 180
degrees. This is very useful when
you want to adjust the bass sound
for best front stage image. Start
at 0 and turn the control slowly
clockwise until you experience
that the bass sound is coming
from the front. If you dont get the
result you want, also try to phase
PHASE
Low level input
Use a pair of shielded stereo audio cables with RCA
type jack. Most trunk-mount amplifiers need a 20
feet RCA cable ( appr 5 – 6 meters). Most under the
seat installations require 12 feet ( 2 – 3 meters) RCA
cables. Avoid placing the RCAcable close to spea-
ker cables, power cables and remote control cable.
0
180
DEGREE
reverse
the
subwoofer
connections and make a new
adjustment. On A5 you find this
control on the amplifiers left side.
DLS A1, A2 and A3 uses a
single pair of RCA inputs while
three and four channels
amplifiers like A4, A5 and A8
uses dual pairs of RCA inputs
A7 is a multi channel
Remote bass level and phase shift
control on A5, A6 and A7
amplifier with three separate
inputs. On next page you can
see how to connect the RCA inputs of A7.
Use high quality interconnects like the DLS SL5 PRO
or SL5 Ultimate that has an effective shielding.
Remote Bass
A remote level and phase
shift control is included with
A5, A6 and A7 amplifiers.
You can adjust the bass
Level
IN
OUT
level and phase from the
front seat of your vehicle.
Connect it to the socket
marked Remote Bass Level.
When using a remote level
control you must activate it
by pushing the switch bes-
When you run the signal cables remember to keep
them well spaced from the wiring loom and the power
feed to the amplifier to avoid picking up interference.
Lay the power cables and signal cables separated
on each side of the car. Any extra cable must be
laid in zig-zag style and definitely not coiled.
Level
Phase
ides the socket, to IN-posi-
tion.
Input Level control
Remote Bass Level &
phase shift control
LEVEL
7V 0,5V
Power / Protect light
The input level control, 7V – 0,2 V, (5V - 0,2 V on
A8) matches the output of your head unit to the
input of the amplifier. After installation is complete,
make sure the input of the amplifier is turned down
all the way ( counter-clockwise at 7V ). Play a tape
or CD, make sure all bass or treble settings or
equalizer are flat, and turn the volume of the radio
up until you just start to hear distortion. Turn the
volume control down just a bit. On the amplifier
increase the input level control ( clockwise or to the
right ) until you just start to hear distortion, then
back the level control just a bit. Now your radio and
amplifier levels are matched.
On three/ four channel amplifiers like the A4, A5
andA8 it´s necessary to adjust the levels indiviually
to achieve a good sound balance between the diffe-
rent speakers, different speakers have different
sensitivity. When using two of the channels for
subwoofer operation, start the level adjustment on
these channels.After having adjusted the bass level
for good performance, adjust the level to the front
system for a good sound balance.
The power light (blue) is turned on when
the amplifier is turned on.
Power
(Blue)
The protect light ( red ) is turned on
when the amplifier shuts down from
overheating, or a short circuit (speaker
failure)
Protect
(Red)
The amplifiers have an internal high current
protection circuit shutting down the amplifier if the
current draw is too high. It is indicated with a LED
marked ”PROTECT”. The protection circuits will
reset by turning the head unit off and on again.
The amplifiers also have a thermal protection that
turns off the amplifier if getting to hot. It will resume
operation after cooling down. If necessary install
an external cooling fan.
There are one or two fuses on the front. Disconnect
the main fuse before replacing any of these.Always
replace with the same type and value.
5
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ULTIMATE A7
Input and controls A7
HP-filter
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
+LEFT- +RIGHT-
IN
HP-filter
LP-filter
LEVEL
3,5V
LEVEL
3,5V
IN
IN
240
240
2
80 400
Hz
80 400
Hz
0,3
kHz
4
7V 0,2V
7V 0,2V
OUT
OUT
OUT
x10 change
by bottom switch
x20 change
by bottom switch
Input Wiring
DLSA7 has a more sofisticated input configuration and
can be connected in different ways which are described
here. Inputs are low level from the RCA output of the
car stereo head unit.
2. Two RCA cables. One to front input and the
other to rear and sub inputs.
If you want to use a separate RCA cable to the front
channels and another RCA cable to rear and sub
channels connect the cables and set the switches
like in the example below:
Low level input
Use a pair of shielded stereo audio cables with RCA
type jack. Most trunk-mount amplifiers need a 20
feet RCA cable ( appr 5 – 6 meters). Most under the
seat installations require 12 feet ( 2 – 3 meters) RCA
cables. Avoid placing the RCA cable close to spea-
ker cables, power cables and
Separate input cables to front and rear. Then
internally connected to the sub channel.
Input
Front Rear
Input
Sub
remote control cable.
Amplifier front
The amplifier has separate
input sockets for front, rear
and sub channel.
Sub input
separate
Front
nput to
rear & sub
Rear
input to
sub
x 1
HP
x 20
LP
Sub input
from rear
x 1
There are two switches
located under the amplifier
x 10
bottom plate. With these switches you can choose
different ways to connect the RCA input sockets
internally. You can use either one, two or three
separate RCA cables for the feed. Use any of the
following:
3. Three RCA cables. One to front input, one to
rear input, and the third to sub input.
If you want to use separate RCA cables to all inputs,
set the switches like in the example below:
1. One RCA cable feed to all amplifier inputs.
If you want to use only one RCA cable to feed all
inputs set the switches like in the example below:
Separate input cables to all channels.
A singhle RCA feeds all channels
Input
Front Rear
Input
Front Rear
Input
Sub
Input
Sub
Amplifier front
Amplifier front
Sub input
separate
Sub input
separate
Front
input to
rear & sub
Front
input to
rear & sub
Rear
input to
sub
Rear
input to
sub
x 1
x 1
HP
HP
LP
LP
Sub input
from rear
Sub input
from rear
x 1
x 1
x 10
x 10
x 20
x 20
6
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ULTIMATE A-series
Crossovers / filters (general)
DLSA-series amplifiers include highpass filter (HP)
and lowpass filters (LP).
DLS A4
DLS A4 is equipped with adjustable HP-and LP- filt-
ers on all channels. These can also be switched in/
out. The filters are equipped with a multiplication
button for improved flexibility.
The HP-filters can be used in one of two ways.
Either as a subsonic filter together with a
subwoofer to remove the lowest frequencies which
often causes a rumbling bass reproduction. A nor-
mal setting is 20 - 30 Hz.
The HP-filter can also be used together with a front
or rear stereo system to remove frequencies below
the crossover setting. In a system with a separate
subwoofer it´s normal to limit the bass reproduction
to the front system.Anormal setting is between 80
- 100 Hz, but feel free to try other settings.
If you have problems with the mid bass driver
”reaching the bottom” (the voice coil reches the bot-
tom pole plate) at high volumes, use the HP-filter
to avoid this with a setting at 50 - 80 Hz.
The filter setup are as follows:
Front:
Lowpass (LP) 50 - 125 Hz
Highpass (HP) 20 - 200 Hz alt 60 - 600 Hz (x 3 button)
Rear:
Lowpass (LP) 45 - 200 Hz alt. 90 - 400 Hz (x 2 button)
Highpass (HP) 20 - 200 Hz
The x2 and x3 buttons are used if you run a 2-way
system with active crossover between mid-bass and
tweeter.
DLS A5
Front channels:
A subsonic filter is actually a HP-filter.
DLSA5 has an internal adjustable HP-filter that can
be switched in/out. It can be set from 50 up to 150
Hz.
The LP-filters are normally used when you connect
a subwoofer in bridge mode. The filter can be
switched in and out. A normal setting is 70 - 80 Hz.
The filter slope is 12 dB.
Sub / mono channel:
The mono channel filters are for use only with one or
more subwoofers There is a LP-filter adjustable from
40 up to 90 Hz, and a subsonic filter at 25 Hz that
can be switched in-out.
Active crossover.
DLS A6
DLSA6 is a mono amplifier for use only as a subwoofer
amplifier.
It has a fixed 25 Hz subsonic filter that can be switched
in/out.
A4 and A7 the LP and HP-filters have a frequency
range making it possible to use them for active
crossover to a 2-way speakersystem.
Crossovers on each model
It also has a LP-filter adjustable from 50 - 125 Hz.
This filter can not be disconnected.
DLS A1
DLS A7
This is a five channel amplifier with a lot of filter
possibilities described in detail on page 8.
DLSA1 has an internal adjustable HP-filter that can
be switched in/out. It can be set from 20 up to 200
Hz. It also has an internal fixed LP-filter that can be
set to either 70 or 90 Hz. The filter switch is available
through a hole in the bottom plate.
DLS A8
DLS A8 amplifiers include HP-filter and LP-filters
on both front and rear channels. The HP-filter has
two fixed frequencies, 65 or 85 Hz. The HP-filter
can be disconnected in position OFF. The LP-filter
is variable between 50 and 125 Hz.
DLS A2 och A3
DLSA2 andA3 has an adjustable LP-filter that can be
switched in/out. It can be set from 50 - 125 Hz. There
is also an adjustable HP-filter that can be switched
in/out.The filter is adjustable from 20 - 200 Hz.
PHASE SHIFT BUTTON ON A3:
DLS A3 has a button marked ”PHASE”. Use this
button to phase reverse the speaker output. The
button is only working when the lowpass filter is in
use. Only use this button when you want to phase
reverse a subwoofer to get the best sound.
7
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ULTIMATE A7
HP-filter
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
+LEFT- +RIGHT-
IN
HP-filter
LP-filter
LEVEL
3,5V
LEVEL
3,5V
IN
IN
240
240
2
80 400
Hz
80 400
Hz
7V 0,2V
0,3
kHz
4
7V 0,2V
OUT
OUT
OUT
x10 change
by bottom switch
x20 change
by bottom switch
Crossovers / filters on A7
Lowpass filter on rear channels
LP-filter
DLS A7 amplifier include highpass filter (HP),
IN
lowpass filter (LP). On the two front channels the HP-
filter can be switched between two different frequency
ranges, likewise for the LP-filter on the rear channels.
2
0,3
kHz
x10 change
by bottom switch
4
OUT
Highpass filter on front channels
The slope of the HP-filter is
12 dB / octave.
The LP-filter on the rear channels is used when
you run a 2-way or 3-way speaker system with active
crossover. It will allow low frequencies only and
blocks higher frequencies. The filter can be switched
in and out.
The normal frequency range is from 0,3 to 4 kHz.
With the LP x10 switch, under the bottom plate,
you can change the filter frequency range from the
normal to 3 - 40 kHz. A normal x-over setting is 3-4
kHz when used for active crossover in a 2-way sys-
tem.
HP-filter
IN
The filter can be switched off
if you want to run the
amplifier in full range mode.
Or use as a HP-filter for
tweeters if you want to run
a 2-way speaker system
with active crossover. The
HP x20 switch under the bot-
tom plate changes the filt-
ers frequency range from the
normal 80-400 Hz to 1600 -
8000 Hz. Anormal setting is
3-5 kHz.
240
80 400
Hz
OUT
x20 change
by bottom switch
If you run a 3-way system on the amplifier you can
use this filter for active crossover between midbass
and midrange speakers.Atypical setting is 400 Hz.
If you run a 3-way system
on the amplifier you can use
this filter for active cross-
over between midbass and
Input
Front Rear
Input
Sub
Amplifier front
Sub input
separate
Front
input to
rear & sub
Rear
input to
sub
x 1
midrange speakers,
typical setting is 400 Hz.
a
HP
LP
Sub input
from rear
x 1
x 10
x 20
Input
Input
Sub
Amplifier front
Front
Rear
Sub input
separate
Front
input to
rear & sub
LP x10 swith under the bottom plate
Rear
input to
sub
x 1
HP
Highpass filter on rear channels
LP
Sub input
from rear
x 1
x 10
x 20
This HP-filter is normally
used as a high pass filter
blocking very low frequencies
from reaching the speakers. It
Lowpass
90
Filters on sub
channel
is mostly used at say 80 Hz
to protect small speakers
( like 6 inch and smaller ) from
deep bass.
The slope of the HP-filter is
12 dB / octave.
HP-filter
IN
50 125
Hz
240
The sub channel is made only for subwoofer use
and has a variable LP-filter that can be switched on-
off. A normal setting for the LP-filter is 60-80 Hz.
80 400
Hz
OUT
The filter can be switched off
if you want to run the amplifier
in full range mode.
8
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ULTIMATE A-series
Professional Tip:
Professional Tip:
SPEAKER POLARITY CHECK.
NOISE PROBLEMS
All speakers in a car audio system should be
connected in phase (the same polarity). All spea-
ker cones must move in the same direction. Out of
phase speakers will cause a lack of bass, and a
poor stereo soundstage.
WHINING NOISE VARYING WITH ENGINE
REVOLUTIONS:
Do this:
1.
Rewire the power supply (12 V) to source
unit direct from battery.
Rewire ground wire from source unit to
Checking polarity:
2.
Hold the - connection of the speaker wire to the -
terminal 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.
clean position on chassis.
3.
Check all power connections to ensure that
they are clean and tight.
4.
5.
Check quality of system ground connection.
Install a Power Cap capacitor. This can be
helpful against most noise problems.
CONSTANT WHINING NOISE:
Do this:
1.
2.
3.
Ensure that all equipment has a common
ground point.
Check quality of earth strap connection from
battery negative terminal to chassis.
Disconnect signal cables from amplifier to
see if noise disappears. If so the leads are
picking up noise. Test this by laying a new
cable over the seats and reconnecting to the
amplifier. If the noise does not return, re-
route original cable away from source of
interference.
+
+
Battery
1,5 Volt
-
If noise remains regardless of cable position,
try to use so called Quasi-balanced signal
cables. DLS PRO and Ultimate-cables are
Quasi-balanced.
-
NOTE! Tweeters can not be tested this way,
double check the connections instead.
Professional Tip:
Professional Tip:
Installing in trunk
Securing wires
When installing the amplifier in the trunk, run the
power wires along the same path as the other
vehicle wiring. Many cars have insulated channels
for wiring. you will have to remove the door sill trim
and the carpet.
Use wire ties to bundle together when possible.
(But never bundle speaker wires or signal cables
together with power wires).
Professional Tip:
Professional Tip:
Crimp connections
Purchase crimp connectors and crimping tool.
Connectors are color coded.
Speaker and power wires
Do not run speaker and power wires next to each
other. Power wires can generate a ”siren” sound in
the speakers. Run speaker and power wires on
opposite sides of the car.
1. Strip 1/4 inch (6 mm) of insulation from the wire.
2. Insert into connector
3. Crimp tightly
9
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ULTIMATE A1-A2
Wiring examples DLS A1 & A2
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. The main difference between DLS A1 and A2 is the lowpass
filter and the power output. A1 has a 3-way filter selector under the bottom plate and A2 has a continously
variable filter on the front.
DLS A1 and 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 A1 has a lowpass filter with two fixed frequencies that can be set under the bottom plate.
DLS A2 has an inbuilt adjustable lowpass filter that should be set to approx. 70-80 Hz.
1. One speaker pair
connected in stereo
DLS A1
DLS A2
HP-filter
LP-filter
LEVEL
HP-filter
LEVEL
IN
IN
IN
3,5V
You can use all DLS coaxial, 2-way
or 3-way systems in this example.
The speaker impedance must be 4
ohm.
3,5V
100
100
100
7,0V 0,2V
7,0V 0,2V
20 200
Hz
20 200
Hz
20 200
Hz
OUT
OUT
OUT
Highpass filter
not in use.
Lowpass filter
not in use.
Both
buttons
in out
position
SIGNAL INPUT
LEFT RIGHT
SPEAKERS
+LEFT- +RIGHT-
POWER IN
BATT+ REMOTE GND
HP-filter
100
LEVEL
IN
FUSE
3,5V
POWER
20 200
7,0V 0,2V
PROTECT
OUT
Button out
Pre out
FM1 107,3
+
-
-
+
Fuse
60 A
+
Battery
12 volt
Remote
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.
For power cable, speaker cable and fuse
size selection we refer to page 4.
Use a 2 mm hexagon key to speaker terminals.
Use a 2,5 mm hexagon key to DC input terminals on A1
Use a 4 mm hexagon key to DC input terminals on A2, A3, A4
10
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ULTIMATE A1-A2
DLS A1
DLS A2
2. Two stereo speaker pairs
connected in parallel
HP-filter
LP-filter
LEVEL
HP-filter
LEVEL
IN
IN
IN
3,5V
100
100
3,5V
100
Highpass filter not in use.
Lowpass filter not in use.
If you have
7,0V 0,2V
7,0V 0,2V
20 200
Hz
20 200
Hz
20 200
Hz
OUT
OUT
OUT
problems
with the mid
bass driver
”reaching
the bottom”
(the voice
coil touches
the bottom
pole plate)
Both
buttons
in OUT-
position
SIGNAL INPUT
LEFT RIGHT
SPEAKERS
+LEFT- +RIGHT-
POWER IN
BATT+ REMOTE GND
HP-filter
LEVEL
IN
FUSE
100
3,5V
POWER
20 200
7,0V 0,2V
PROTECT
OUT
Button out
at
high
Pre out
v o l u m e s ,
use the HP-
+
-
-
+
filter
to
avoid this
with a set-
ting at 50 -
80 Hz or
h i g h e r .
Make your
own tests.
FM1 107,3
-
+
+
-
+
Battery
12 volt
Remote
DLS A2
DLS A1
3. Connection in mono
with one subwoofer in
bridge mode.
HP-filter
LP-filter
LEVEL
HP-filter
LEVEL
IN
IN
IN
3,5V
3,5V
100
100
100
7,0V 0,2V
7,0V 0,2V
20 200
Hz
20 200
Hz
20 200
Hz
Button IN
OUT
OUT
OUT
Button IN
Button IN
SIGNAL INPUT
LEFT RIGHT
SPEAKERS
+LEFT- +RIGHT-
POWER IN
BATT+ REMOTE GND
HP-filter
100
LEVEL
3,5V
IN
FUSE
POWER
Filter setting
A1:
HP-filter: 25-30
Hz
20 200
7,0V 0,2V
PROTECT
OUT
LP-filter: fixed
70 or 90 Hz
A2:
Pre out
HP-filter: 25-30
Hz
FM1 107,3
LP-filter. 70-80
Hz
+
-
+
Battery
12 volt
Remote
Subwoofer 4 ohm
You can use all DLS 4 ohm subwoofers
in this example.
For power cable, speaker cable and fuse size selection we refer to page 4.
11
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ULTIMATE A3
WIRING EXAMPLES DLS A3
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. The two channels are divided into two separate mono amplifiers. There
are separate DC inputs for each channel but they are internally connected with each other. You can feed the
amplifier with double DC feeds if you want a minimum of voltage drop, or you can also use the extra DC-input
for the connection of a Power capacitor as in the example.
DLS A3 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
filter is used. (Connect to L+ and R-).
DC-FEED DLS A3
1. In stereo with one front and
one rear speaker system.
POWER IN /POWER CAP
GND FAN OUT POS+
POWER IN
BAT+ REM GND
LEFT FUSES
30 A x 2
RIGHT FUSES
30 A x 2
POWER
You can use all DLS coaxial, 2-way or
3-way speaker systems in this
example. Speaker impedance must be
4 ohm.
PROTECT
Fuse
150 A
For power cable, speaker cable and
fuse size selection see page 4.
To remote
on stereo / CD
+
Power
capacitor
Battery
12 volt
Fan12 V
Highpass filter not in use.
Lowpass filter not in use.
If you have problems
with the mid bass dri-
ver ”reaching the bot-
tom” (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.
HP-filter HP-filter
IN
LP-filter
90
Phase
+180
LP-filter
IN
LEVEL
SPEAKERS
+LEFT-
SIGNAL INPUT
LEFT RIGHT
+RIGHT-
100
3,5V
20 200
OUT
15 125
7,0V 0,2V
0
OUT
Button out
-
+
-
Pre out
+
-
+
-
FM1 107,3
+
12
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ULTIMATE A3
2. One or more subwoofers
in mono bridge mode
DC - FEED DLS A3
POWER IN /POWER CAP
GND FAN OUT POS+
POWER IN
BAT+ REM GND
You can use all DLS subwoofers in
this example.
Speaker impedance must be 4 ohm.
LEFT FUSES
30 A x 2
RIGHT FUSES
30 A x 2
POWER
PROTECT
For power cable, speaker cable and
fuse size selection see page 4.
Fuse
150 A
Adjust the HP- and LP-filter settings
as in the drawing
To remote
on stereo / CD
+
Power
capacitor
Battery
12 volt
Fan12 V
HP-filter setting: 30 Hz
LP-filter setting: 60-80 Hz
Button in
Button in
HP-filter HP-filter LP-filter PHASE LP-filter
LEVEL
3,5V
+180
IN
IN
90
100
7,0V 0,2V
50 125
Hz
20 200
Hz
0
OUT
OUT
HP-filter HP-filter
IN
LP-filter
90
Phase
+180
LP-filter
IN
LEVEL
SPEAKERS
+LEFT-
SIGNAL INPUT
LEFT RIGHT
+RIGHT-
100
3,5V
20 200
OUT
15 125
7,0V 0,2V
OUT
0
Pre out
With the PHASE button you
can phase shift the phase
on the speaker output
terminals.
FM1 107,3
Subwoofer
4 ohm
DLS A3 is 1 ohm stable. This means that you
can connect two 4 ohm subwoofers in parallel
without damaging the amplifier. Two 4 ohm
subwoofers connected in parallel results in a 2
ohm load which the amplifier sees as a 1 ohm
load.
Use a 2 mm hexagon key to speaker terminals.
Use a 2,5 mm hexagon key to DC input termin-
als on A1
Use a 4 mm hexagon key to DC input terminals
on A2, A3, A4
If you have a 4 ohm sub with dual voice coils
you can connect the coils in parallel.
13
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ULTIMATE A4
DC - FEED DLS A4
WIRING EXAMPLES A4
1. Connecting a front
system in stereo and a sub-
woofer in mono bridge mode.
POWER IN /POWER CAP
GND FAN OUT POS+
POWER IN
BAT+ REM GND
POWER
PROTECT
You can use all DLS coaxial, 2-way,
3-way systems and subwoofers in this
example.
Fuse
150 A
All speakers must be 4 ohm.
If the head unit has only one pre out a
Y-cable must be used.
To remote
on stereo / CD
+
For power cable, speaker cable and fuse
size selection see page 4.
Power
capacitor
Battery
12 volt
Fan 12 V
HP-filter setting: 80-100 Hz
LP-filter not in use
If you use both DC-inputs for the DC feed,
connect a Fuse block with two 70 Amp fuses, one
for each input.
Button in
Button out
HP-filter HP-filter
3X
HP-filter
IN
LP-filter
90
LP-filter LEVEL
FRONTINPUTS
LEFT RIGHT
FRONTSPEAKERS
+LEFT- +RIGHT-
IN
100
3,5V
50 125
20 200
1X
7,0V 0,2V
OUT
OUT
Pre out
front
Button out
+
-
-
+
FM1 107,3
HP-filter setting: 30 Hz
LP-filter setting: 70-80 Hz
Pre out
rear
Button in
Button in
Use a 2 mm hexagon key
to speaker terminals.
Use a 2,5 mm hexagon
key to DC input terminals
onA1
LEVEL
3,5V
LP-filter
IN
LP-filter
2X
LP-filter
100
HP-filter HP-filter
IN
REARSPEAKERS
+LEFT- +RIGHT-
REAR INPUTS
LEFT RIGHT
100
7V 0,2V
20 200
20 200
Use a 4 mm hexagon key
to DC input terminals on
A2, A3, A4
OUT
1X
OUT
Button out
DLS A4 is 1 ohm stable. This means that you can connect two 4
ohm subwoofers in parallel without damaging the amplifier. Two 4
ohm subwoofers connected in parallel results in a 2 ohm load which
the amplifier sees as a 1 ohm load.
If you have a 4 ohm sub with dual voice coils you can connect the
coils in parallel.
Subwoofer
4 ohm
14
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ULTIMATE A4
DC-FEED DLS A4
2. A front system connected
in stereo bridge mode on all
four channels.
POWER IN /POWER CAP
GND FAN OUT POS+
POWER IN
BAT+ REM GND
POWER
You can use all DLS coaxial, 2-way or
3-way speaker systems in this
example.
PROTECT
Speaker impedance must be 4 ohm.
If the head unit has only one pre out a
Y-cable must be used.
Fuse
150 A
For power cable, speaker cable and
fuse size selection see page 4.
To remote
on stereo / CD
+
Power
capacitor
Battery
12 volt
Fan 12 V
HP-filter not in use.
LP-filter not in use.
If you use both DC-inputs for the DC feed,
connect a Fuse block with two 70 Amp fuses, one
for each input.
Button out
Button out
If you have problems
with the mid bass dri-
HP-filter HP-filter
3X
HP-filter
IN
LP-filter
90
LP-filter LEVEL
FRONTINPUTS
LEFT RIGHT
ver ”reaching the bot-
tom” (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.
FRONTSPEAKERS
+LEFT- +RIGHT-
IN
100
3,5V
50 125
20 200
7,0V 0,2V
1X
OUT
OUT
Pre out
front
Button out
+
-
FM1 107,3
HP-filter not in use.
LP-filter not in use.
Pre out
rear
Button out
Button out
LEVEL
LP-filter
IN
LP-filter
2X
LP-filter
100
HP-filter HP-filter
IN
REARSPEAKERS
+LEFT- +RIGHT-
REAR INPUTS
LEFT RIGHT
3,5V
100
7V 0,2V
20 200
OUT
20 200
OUT
1X
Button out
-
Use a 2 mm hexagon key to speaker terminals.
Use a 2,5 mm hexagon key to DC input terminals on A1
Use a 4 mm hexagon key to DC input terminals on A2, A3, A4
+
15
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ULTIMATE A4
DC-FEED DLS A4
3. Connecting a 3-way
system using active crossover
between woofer and midrange.
POWER IN /POWER CAP
GND FAN OUT POS+
POWER IN
BAT+ REM GND
POWER
PROTECT
You can use all 3-way speaker
systems in this example. You can also use
any 2-way system in combination with a
separate mid bass speaker.
Fuse
150 A
Speaker impedance must be 4 ohm.
If the head unit has only one pre out a
Y-cable must be used.
To remote
on stereo / CD
+
Power
Fan 12 V
Battery
12 volt
For power cable, speaker cable and fuse
size selection see page 4.
capacitor
If you use both DC-inputs for the DC feed,
connect a Fuse block with two 70 Amp fuses, one
for each input.
HP-filter setting: 400 Hz
LP-filter not in use
Button in
Button out
HP-filter HP-filter
3X
HP-filter
IN
LP-filter
90
LP-filter LEVEL
FRONTINPUTS
LEFT RIGHT
FRONTSPEAKERS
+LEFT- +RIGHT-
IN
100
3,5V
50 125
20 200
1X
7,0V 0,2V
OUT
OUT
Passive crossover boxes
for tweeters and midrange
Button in
+
-
+
-
Midrange
drivers
Pre out
front
FM1 107,3
+
-
+
-
HP-filter not in use
LP-filter setting: 400 Hz
Tweeters
Button out
Button in
If you have problems
with the mid bass dri-
ver ”reaching the bot-
tom” (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.
LEVEL
3,5V
LP-filter
IN
LP-filter
2X
LP-filter
100
HP-filter HP-filter
IN
REARSPEAKERS
+LEFT- +RIGHT-
REAR INPUTS
LEFT RIGHT
100
7V 0,2V
20 200
20 200
OUT
1X
OUT
Button in
+
-
-
Bass/midbass
drivers
+
Use a 2 mm hexagon key to speaker terminals.
Use a 2,5 mm hexagon key to DC input terminals on A1
Use a 4 mm hexagon key to DC input terminals on A2, A3, A4
16
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ULTIMATE A5
You can use all DLS coaxial, 2-way, 3-way systems and
subwoofers in this example.
WIRING EXAMPLES A5
All speakers must be 2-4 ohm. If the head unit has only one
pre out, a Y-cable must be used.
For power cable, speaker cable and fuse size selection see
page 4.
Connection of a front system in
stereo and a subwoofer in mono.
DC - FEED DLS A5
Use a 2 mm hexagon key to speaker and
fan terminals. Use a 2,5 mm hexagon key
FAN
POWER IN
BATT+ REM GND
FUSES 30 A x 3
POWER
to the remote terminal. Use a 3 mm hexa-
gon key to DC input terminals.
-
+
PROTECT
DLSA5 front channels are 2 ohm stable. DLS
A5 mono channel is 1,33 ohm stable. This
means that you can connect three 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.
Fuse
100 A
+
Fan 12 V
Battery
12 volt
To remote
on stereo / CD
Subsonic-filter setting: IN (fixed 25 Hz)
LP-filter setting: 70-80 Hz
HP-filter setting: 80 Hz
Button in
Button in
Subsonic
IN
Filter
SIGNAL INPUTS
FRONT SUB
LEFT RIGHT LEFT RIGHT
REARSPEAKERS
+LEFT- +RIGHT-
LEVEL
HP-filter
SUBWOOFER
+ SPEAKER -
Low-Pass
LEVEL
3,5 V
IN
110
65
3,5V
80 150
Hz
7,0 V 0,2 V
40 90
7V 0,2V
OUT
OUT
Pre out
front
Pre out
sub or
rear
+
-
-
+
FM1 107,3
Subwoofer
4 ohm
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.
Left side of A5 (part of)
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.
Remote
Bass level /
Phase
IN
Remote Bass
Level & Phase
control
Phase
0
+180
OUT
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 right side of the socket, to
IN-position.
Level
Phase
17
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ULTIMATE A6
WIRING EXAMPLES A6
DC - FEED DLS A6
Connection of two 4 ohm
subwoofers
POWER IN /POWER CAP
GND FAN OUT POS+
POWER IN
BAT+ REM GND
FUSES
35 A x 2
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.
FUSES
35 A x 2
POWER
PROTECT
Fuse
150 A
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.
To remote
on stereo / CD
+
Power
capacitor
Battery
12 volt
Fan12 V
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.
Subsonicfilter setting: IN (fixed 25 Hz)
LP-filter setting: 70-80 Hz
Button in
Sub
Remote Bass
SPEAKERS
-
SIGNAL INPUT
LEFT RIGHT
sonic Level
IN
Phase
+90
LP-filter
90
LEVEL
3,5V
IN
+
+
-
0
+180
50 125
7,0V 0,2V
OUT
OUT
Level
Phase
FM1 107,3
Remote Bass
Level & Phase
control
Subwoofer
4 ohm
Subwoofer
4 ohm
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.
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.
18
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ULTIMATE A7
WIRING EXAMPLES A7
Example 1: Speaker wiring with front speakers, rear speakers and one or
more subwoofers
HP-filter: 80 Hz
LP-filter not in use.
HP-filter: 80 Hz
Button in
Button in
Button out
HP-filter
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
IN
HP-filter
LP-filter
LEVEL
3,5V
LEVEL
3,5V
IN
+LEFT- +RIGHT-
IN
240
240
2
80 400
Hz
80 400
Hz
7V 0,2V
0,3
kHz
4
7V 0,2V
OUT
OUT
OUT
x10 change
by bottom switch
x20 change
by bottom switch
Pre out
front
Pre out
rear
+
-
+
-
-
-
+
+
FM1 107,3
DC - FEED DLS A7
For DC-feed, see page 4
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.
LP-filter: 70- 80 Hz
Remote Bass
FILTER
SUB-WOOFER
+ SPEAKERS -
SIGNAL INPUT
LEFT SUB RIGHT
Level
PHASE
90
A7 IN BRIDGE MODE
Low-pass
90
LEVEL
3,5V
IN
You can connect the stereo channels in
bridge mode if you prefer. Connect between
L+ and R- on the respective channel pair.
O
180
Degree
50 125
7,0V 0,2V
OUT
Level
Phase
FM1 107,3
Remote Bass Level
& Phase control
Subwoofer
2 - 4 ohm
Switch settings in this example
HP: x1
LP: x1
Filter settings:
Front: HP-filter 80 Hz or fullrange
Rear: HP-filter 80 Hz or fullrange
LP-filter OUT
Input
Sub: LP-filter 70-80 Hz
Input
Sub
Amplifier front
Front
Rear
Sub input
separate
x 1
Use one, two or three RCA-cables
for signal from head unit to amplifier.
See page 6 for detailed instructions
HP
LP
Sub input
common
x 1
x 10
x 20
19
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ULTIMATE A7
WIRING EXAMPLES A7
Example 2: Speaker wiring with active crossover to a front speaker system
and one or more subwoofers
HP-filter setting: 80 Hz
LP-filter setting: 4 kHz.
HP-filter setting:
4 kHz
Button in
Button in
Button in
HP-filter
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
IN
HP-filter
IN
LP-filter
LEVEL
3,5V
LEVEL
3,5V
+LEFT- +RIGHT-
IN
240
240
2
80 400
Hz
80 400
Hz
0,3
kHz
4
7V 0,2V
7V 0,2V
OUT
OUT
OUT
x10 change
by bottom switch
x20 change
by bottom switch
Pre out
front
Pre out
rear
+
-
+
-
-
-
+
+
Tweeters with active high-pass
x-over setting at 4 kHz
Midbass/midrange speakers with
active low-pass x-over setting
at 4 kHz
FM1 107,3
LP-filter: 70- 80 Hz
DC - FEED DLS A7
For DC-feed, see page 4
Remote Bass
Level
SUB-WOOFER
+ SPEAKERS -
FILTER
SIGNAL INPUT
LEFT SUB RIGHT
PHASE
90
Low-pass
LEVEL
3,5V
IN
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.
90
O
180
Degree
50 125
7,0V 0,2V
OUT
Level
Phase
FM1 107,3
Remote Bass Level
& Phase control
Subwoofer
2 - 4 ohm
Switch settings in this example
HP: x20
LP: x1
Filter settings:
Front: HP-filter 4 kHz with x20-
switch in x20 position
Input
Rear: HP-filter 80 Hz or fullrange
LP-filter IN, setting 4 kHz with
x10 switch in position x1
Input
Sub
Amplifier front
Front
Rear
x 1
Sub: LP-filter 70-80 Hz
HP
LP
x 1
x 10
Use one, two or three RCA-cables
for signal from head unit to amplifier.
See page 6 for detailed instructions
x 20
20
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ULTIMATE A7
WIRING EXAMPLES A7
Example 3: System with front speaker system, rear fill speakers and one
or more subwoofers
Highpass filter 125 Hz
Lowpass filter setting 6 kHz
Highpass filter 80 Hz
Button in
Button in
Button in
HP-filter
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
+LEFT- +RIGHT-
IN
HP-filter
IN
LP-filter
LEVEL
3,5V
LEVEL
3,5V
IN
240
240
2
80 400
Hz
80 400
Hz
7V 0,2V
0,3
kHz
4
7V 0,2V
OUT
OUT
OUT
x10 change
by bottom switch
x20 change
by bottom switch
Pre out
front
Pre out
rear
Filter
box
Filter
box
+
-
+
-
+
-
+
-
Rear fill speakers 125 Hz to 6 kHz
FM1 107,3
+
-
+
-
Lowpass filter 70- 80 Hz
Two-way front system
DC - FEED DLS A7
For DC-feed, see page 4
Remote Bass
Level
SUB-WOOFER
FILTER
SIGNAL INPUT
LEFT SUB RIGHT
PHASE
90
+ SPEAKERS -
Low-pass
LEVEL
3,5V
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.
IN
90
O
180
Degree
50 125
7,0V 0,2V
OUT
Level
Phase
FM1 107,3
Remote Bass Level
& Phase control
Subwoofer
2 - 4 ohm
Switch settings in this example
HP: x1
LP: x10
Filter settings:
Front: HP-filter 80 Hz or fullrange
Rear: HP-filter 125 Hz
LP-filter IN. Setting 6 kHz with
x10 switch in position x10
Sub: LP-filter 70-80 Hz
Input
Input
Sub
Amplifier front
Front
Rear
x 1
HP
LP
Use one, two or three RCA-cables for
signal from head unit to amplifier.
See page 5 for detailed instructions
x 1
x 10
x 20
21
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ULTIMATE A7
WIRING EXAMPLES A7
Example 4: Speaker wiring with acive/passive crossover to a 3-way front
speaker system and one or more subwoofers
HP-filter setting: 80 Hz
LP-filter setting: 400 Hz.
HP-filter setting:
400 Hz
Button in
Button in
Button In
HP-filter
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
+LEFT- +RIGHT-
IN
HP-filter
IN
LP-filter
LEVEL
3,5V
LEVEL
3,5V
IN
240
240
2
80 400
Hz
80 400
Hz
7V 0,2V
0,3
kHz
4
7V 0,2V
OUT
OUT
OUT
x10 change
by bottom switch
x20 change
by bottom switch
Pre out
front
Pre out
rear
Filter
box
Filter
box
+
-
-
+
+
-
+
-
Midbass with active lowpass x-
over setting at 400 Hz.
FM1 107,3
+
-
+
-
LP-filter: 70- 80 Hz
Midrange and tweeters with active
highpass x-over setting at 400 Hz.
Passive x-over between
midbrange and tweeters
Remote Bass
Level
SUB-WOOFER
FILTER
SIGNAL INPUT
LEFT SUB RIGHT
PHASE
90
+ SPEAKERS -
Low-pass
LEVEL
3,5V
DC - FEED DLS A7
For DC-feed, see page 4
IN
90
O
180
Degree
50 125
7,0V 0,2V
OUT
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.
Level
Phase
FM1 107,3
Remote Bass Level
& Phase control
Subwoofer
2 - 4 ohm
Switch settings in this example
HP: x1
LP: x1
Filter settings:
Front: HP-filter 400 Hz with x20-
switch in x1 position
Rear: HP-filter 80 Hz or fullrange
LP-filter IN, setting 400 Hz with
x10 switch in position x1
Input
Input
Sub
Amplifier front
Front
Rear
Sub: LP-filter 70-80 Hz
x 1
HP
x 20
Use one, two or three RCA-cables for
signal from head unit to amplifier.
See page 5 for detailed instructions
LP
x 1
x 10
22
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ULTIMATE A8
WIRING EXAMPLES A8
Example 1: Speaker wiring with front and rear speakers
LP-filter not in use.
LP-filter not in use
Button Out
Button out
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
LEVEL
IN LP-filter
50 125
IN
LEVEL
LP-filter
FRONT INPUTS REAR
LEFT RIGHT LEFT RIGHT
+LEFT- +RIGHT-
5V 0,5V
50 125
Hz
5V 0,5V
OUT
Hz
OUT
HP-filter change
by bottom switch
HP-filter change
by bottom switch
Pre out
front
Pre out
rear
+
-
-
+
-
-
+
+
FM1 107,3
Filter settings:
Front: HP-filter 85 Hz or OFF
LP-filter OUT
Rear: HP-filter 85 Hz or OFF
LP-filter OUT
Use one RCA cable with Y-split, or two
separate RCA-cables for signal from head
unit to amplifier.
Example 2: Speaker wiring with a front speaker system and one or more
subwoofers
LP-filter setting:
70 - 80 Hz.
LP-filter not in use
Button Out
Button in
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
LEVEL
IN LP-filter
50 125
IN
LEVEL
LP-filter
FRONT INPUTS REAR
LEFT RIGHT LEFT RIGHT
+LEFT- +RIGHT-
5V 0,5V
50 125
Hz
5V 0,5V
OUT
Hz
OUT
HP-filter change
by bottom switch
HP-filter change
by bottom switch
Pre out
front
Pre out
rear
+
-
-
+
FM1 107,3
Subwoofer
2 - 4 ohm
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.
Use one RCA cable with Y-split, or two
separate RCA-cables for signal from head
unit to amplifier.
Filter settings:
Front: HP-filter 85 Hz or OFF
LP-filter OUT
Rear: HP-filter 85 Hz or OFF
LP-filter IN
23
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ULTIMATE A8
WIRING EXAMPLES A8
Example 2: Speaker wiring with subwoofers in bridge mode to both front
and rear channels
LP-filter setting:
70 - 80 Hz.
LP-filter setting:
70 - 80 Hz.
Button in
Button in
REAR SPEAKERS
+LEFT- +RIGHT-
FRONT SPEAKERS
+LEFT- +RIGHT-
LEVEL
IN
LP-filter
IN
LEVEL
LP-filter
FRONT INPUTS REAR
LEFT RIGHT LEFT RIGHT
50 125
Hz
5V 0,5V
50 125
Hz
5V 0,5V
OUT
OUT
HP-filter change
by bottom switch
HP-filter change
by bottom switch
Pre out
front
Pre out
rear
FM1 107,3
Subwoofer
2 - 4 ohm
Subwoofer
2 - 4 ohm
Use one RCA cable with Y-split, or two
separate RCA-cables for signal from head
unit to amplifier.
Filter settings:
Front: HP-filter OFF
LP-filter IN
Setting 70-80 Hz
Rear: HP-filter OFF
LP-filter IN
Setting 70-80 Hz
24
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ULTIMATE A7
Testing
Before you finish the installation, you should do the
following tests to make sure the wiring is correct and
everything is operating properly.
Troubleshooting
If problems occour during the installation, or later, this
guide might help you to find out whats´s wrong.
THE AMPLIFIER IS DEAD:
1. Check power lead, ground and remote
connections at the amplifier using a multi meter.
2. Check the battery terminal connections.
3. Check the power lead fuse or circuit breaker. If
fuse damage continues, inspect the power lead
for short circuits.
Reconnect Battery
When wiring is complete,
reconnect the battery
negative terminal.
4. Check the amplifier protection fuses. Are these
broken change to new ones with the same value.
If short circuiting continues, contact your local
DLS dealer. A fault may exist in the amplifier.
5. To start the amplifier requires a remote voltage of
9-15 volt. Check the voltage with a multimeter.
Test power wiring
1.
Turn on the head unit but do not turn up the
volume. The amplifier power light should
come on. If not, check the remote and +12
volt wires. Also check the ground
AMPLIFIER PROTECTION FUSE BLOWS AT LOW
VOLUME :
1. One or more speaker cables are shorted. Make an
insulation test with a multi meter. The cables must not
have a connection to earth.
connection.
2.
Turn up the head units volume slightly. All
speakers should operate. if not, check wiring
connections at amplifier and speakers.
THE AMPLIFIER TURNS OFF AFTER 10 - 30 MINU-
TES.
The amplifier is overheating due to inadequate ventila-
tion. Check mounting position is free from obstruction.
Test speaker connections
Do this:
1.
Make sure the speakers are connected right. Use
the balance control on the head unit to make sure
right channel is on right speaker etc. If speakers
don´t play at all, one or both speaker wires may be
disconnected.
Move the amplifier to a place with better ventil-
ation.
Install one or two fans to cool down the heat-
2.
sink.
3.
Overheating can also be caused by an
impedance load below the level permitted.
NO OUTPUT FROM ONE OR MORE SPEAKERS:
Check the following:
1.
2.
3.
Balance control position.
Fader control position.
Speaker cable connections to both amplifier and
drivers.
4.
5.
Signal lead plugs and cables.
Change left and right signal lead plugs in the
amplifier to see if the problem moves to a diffe-
rent speaker, the lead has a fault.
If the problem remains, the speaker or amplifier
are at fault.
25
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SPECIFICATIONS A1 to A6
Model
A1
A2
A3
A4
Number of channels
Working mode
Power output at 13,8 Volt, 20 Hz - 20 kHz, THD max 0,1%:
2
AB
2
AB
2
AB
4
AB
RMS power output in 4 ohm
RMS power output in 2 ohm
RMS power output in 1 ohm
RMS power output, 4 ohm bridged 160 W
RMS power output, 2 ohm bridged 240 W
RMS power output, 1,33 ohm bridged
2 x 45 W
2 x 80 W
2 x 120 W
2 x 85 W
2 x 145 W
2 x 220 W
290 W
2 x 150 W
2 x 270 W
2 x 425 W
550 W
870 W
1000 W
4 x 85 W
4 x 145 W
4 x 220 W
2 x 250 W
2 x 400 W
450 W
THD
< 0,1%
< 0,1%
> 100 dB
> 200
10 kohm
0,2 - 7 volt
20 - 200 Hz*
50 - 125 Hz*
< 0,1%
> 100 dB
> 200
10 kohm
0,2 - 7 volt
20 - 200 Hz*
50 - 125 Hz*
< 0,1%
>100 dB
> 200
10 kohm
0,2 - 7 volt
see below
”
S/N ratio, A-weighted
Damping factor
Input impedance
Input sensitivity
Filter highpass
Filter lowpass
> 100 dB
> 200
10 kohm
0,2 - 7 volt
20 - 200 Hz*
OFF/70/90 Hz
* can be switched in/out
Filter slope
Fuses
Max cable size, DC-terminal
Max cable size, speaker terminal 10 mm2 (7AWG)
12 dB/octave
30 A
12 dB/octave
30 A x 2
21 mm2 (4AWG)
10 mm2 (7AWG)
12 dB/octave
30 A x 4
21 mm2 (4AWG)
16 mm2 (5AWG)
12 dB/octave
no internal fuses
21 mm2 (4AWG)
10 mm2 (7AWG)
16 mm2 (5AWG)
Protection
Current & thermal Current & thermal Current & thermal Current & thermal
Power consumption:
Idle
Maximum
0,5 A
32 A
0,6 A
60 A
1,1 A
140 A
1,5 A
95 A
Dimensions:
Width x Height x Depth (mm)
(inch)
205 x 73 x 240
8,07 x 2,87 x 9,45 10,43 x 2,87 x 9,45 16,15 x 2,87 x 9,45 18,3 x 2,87 x 9,45
265 x 73 x 240
410 x 73 x 240
465 x 73 x 240
Filter configuration DLS A4
Front:
Lowpass 50 - 125 Hz
Rear:
Lowpass 45 - 200 Hz or 90 - 400 Hx (x 2 button)
Highpass 20 - 200 Hz
Highpass 20 - 200 Hz or 60 - 600 Hz (x 3 button)
Model
A5
A6
Number of channels
Working mode
3
AB
1
AB
Power output at 13,8 Volt
Front channels:
RMS power output in 4 ohm
RMS power output in 2 ohm
Sub channel:
2 x 85 W
2 x 100 W
Nominal power RMS in 4 ohm
Typical power RMS in 2 ohm
Typiocal power RMS in 1 ohm
300 W
500 W
780 W
500 W
870 W
1200 W
THD
< 0,1%
> 100 dB
> 200
10 kohm
0,2 - 7 volt
50 - 150 Hz / 6 dB
40 - 90 Hz / 12 dB
25 Hz /18 dB
0-180 degree continious
Included
<0,1%
>100 dB
> 200
10 kohm
0,2 - 7 volt
S/N ratio, A-weighted
Damping factor
Input impedance
Input sensitivity
Filter highpass
Filter lowpass
Subsonic filter
Phase control
Remote bass level & phase control
Fuses
50 - 125 Hz / 12 dB
25 Hz / 18 dB
0-180 degree continious
Included
3 x 30 A
4 x 35 A
Max cable size, DC terminal
Max cable size, speaker terminal
Protection
21 mm2 (4AWG)
6/10 mm2 (10/7AWG)
Current & thermal
21 mm2 (4AWG)
10 mm2 (7AWG)
Current & thermal
Power consumption:
Idle
Maximum
0,5 A
90 A
0,5 A
140 A
Dimensions:
Width x Height x Depth (mm)
(inch)
410 x 73 x 240
16,15 x 2,87 x 9,45
410 x 73 x 240
16,15 x 2,87 x 9,45
26
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ULTIMATE A7
SPECIFICATIONS A7 & A8
Model
A7
RMS output per channel at 13,8 volts, 20 Hz - 20 kHz , < 0,1% distortion.
Front and rear channels:
Power output in 4 ohm
Power output in 2 ohm
Power output in bridge mode
Subchannel:
4 x 60 W
4 x 100 W
2 x 200 W
Power output in4 ohm
Power output in 2 ohm
Power output in 1 ohm
S / N ratio, A-weighted
Damping factor
Input impedance
Input sensitivity
Fan output terminal
Remote bass & phase control
Fuses
1 x 300 W
1 x 440 W
1 x 600 W
>100 dB
>200
>10k
0,3 - 7V
Yes (max 500 mA)
Yes
20A x 2, 35A x2
21 mm2 (4AWG)
10 mm2 (7AWG)
Current & thermal
Filter configuration DLS A7
Channel 1&2:
Highpass: 80 - 400 Hz
or 1,6 - 8 kHz (x20 switch)
Channel 3&4:
Highpass: 80-400 Hz
Lowpass: 0,3-4 kHz
or 3 - 40 kHz (x10 switch)
Max cable size, DC-terminal
Max cable size, speaker terminal
Protection
Subchannel:
Lowpass: 50 - 125 Hz
Power consumption:
Idle
Maximum
1,1 A
120 A
Dimensions (mm)
Dimensions (inch)
Weight
605x240x73
23,82x 9,45x2,87
8,1 kg ( 17,86 lb)
Model
A8
RMS output per channel at 13,8 volts, 20 Hz - 20 kHz , < 0,1% distortion.
Front and rear channels:
Power output in 4 ohm
Power output in 2 ohm
Mono bridge mode:
Power output in 4 ohm
Power output in 2 ohm
Tri-mode operation 4 ohm:
Tri-mode operation 2 ohm:
Tri-mode operation 4/2 ohm:
S / N ratio, A-weighted
Damping factor
4 x 40 W
4 x 80 W
2 x 165 W
2 x 220 W
2 x 40 W + 1 x 195 W
2 x 75 W + 1 x 230 W
2 x 40 W + 1 x 250 W
>100 dB
>200
>10k
0,5 - 5V
Filter configuration DLS A8
Front:
Highpass: OFF / 65 Hz / 85 Hz
Lowpass variable 50-125 Hz
Input impedance
Input sensitivity
Fuses
30A x 2
Max cable size, DC-terminal
Max cable size, speaker terminal
Protection
Power consumption:
Idle
Maximum
16 mm2 (5AWG)
10 mm2 (7AWG)
Current & thermal
Rear:
Highpass: OFF / 65 Hz / 85 Hz
Lowpass variable 50-125 Hz
0,7 A
60 A
Dimensions (mm)
Dimensions (inch)
Weight
350x240x73
13,78x 9,45x2,87
4,8 kg ( 10,6 lb)
We follow a policy of continuous advancement in
development.
For this reason all or part of specifications & designs
may be changed without prior notice.
27
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DLS Svenska AB
P.O. Box 13029
S-40251 Göteborg, Sweden
Tel: +46 31 840060
Fax: +46 31 844021
E-mail: [email protected]
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