How to install and
operate the
DLS ULTIMATE
A-series amplifiers
A1, A2, A3, A4, A5,
A6, A7 & A8
Welcome!
This owners manual is written in easy english and
uses a lot of drawings to simply the installation and
use of the above amplifiers.
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 installation job to someone better suited to it.
Contents
Caution………………………..…….. 2
Installation…………………….……. 2
Tools and materials needed………. 3
Amplifier installation kit………….... 3
Routing Wires…………………….... 3
Wiring
Power terminals.....……………..…. 4
Inputs and controls…….…………... 5
Input wiring................................... 5
Input level control.......................... 5
Phase control................................ 5
Remote bass level......................... 5
Protection circuits.......................... 5
Input & controls A7…………........... 6
Crossovers / filters………………..... 7
Crossovers / filters A7.................... 8
Professional tips............................ 9
Wiring examples:
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
Testing……………………………….. 25
Trouble-shooting…………………….. 25
Specifications………………………... 26-27
Warranty Service
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.
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 info@dls.se.
Information can also be found on our WEB-site
www.dls.se
Technical Assistance
Approval of electromagnetic compatability
according to the EEC Directive 95/54/EC for
DLS A1, A2, A3, A4, A5, A6, A7 & A8.
E 11 Approval No: 10R-020962
ULTIMATE A-series
Congratulations, you have just purchased the finest mobile audio amplifier that today´s technology can
offer. DLS offers a series of high quality car audio products for real music lovers, and we are sure that you
will enjoy a high class car sound for many years.
CAUTION!
Some of our amplifiers are capable of producing a sound pressure level that can cause permanent damage
to your hearing system. High sound pressure levels combined with long time listening can give permanent
damage to your hearing system. Choose a listening level that is comfortable for your ears.
To establish a safe level:
Start your volume control at a low setting. Slowly increase the volume until you can hear the music
comfortly and clearly, without any distortion. Sudden sound shocks are dangerous.
The following noises can be dangerous with constant exposure:
90 dB Subway, motorcycle, lawn mover 4 hours max
100 dB Chain saw 2 hours max
120 dB Rock band live concert 30 minutes max
140 dB Gunshot blast, jet plane 0 minutes
Installation
Before you begin to install
Before you begin you need to read the manual, to have
some tools, cables and other material available. There
is one such list of material on the following page.
Amplifier location
Important
Allow air circulation around the amplifier.
The DLS ULTIMATE amplifiers have a great
flexibility in mounting but the best is to mount it
somewhere in the trunk.
When you select a location, do remember that the
amplifier generates a lot of heat.
Choose a location where air can circulate freely
around the amplifier. Do not cover the amplifier with
carpets or hide behind trim panels.
Do NOT mount the amplifier upside down under the
hat rack.
In the amplifier case there are four mounting holes.
If the surface where you intend to mount the
amplifier isn´t big enough you can mount it on a
separate fibre board or similar. This will also isolate
the amplifier chassies from ground.
WARNING!
Check all locations and placements carefully before
making any cuts, drilling any holes or making any
connections.
Disconnect Battery
Before starting the installation, always disconnect
the negative terminal of
the battery.
Professional Tip:
If amplifier installation kits are available with different
size of power cable, chose the most heavy power cable
to improve sound quality and to allow more amplifiers
to be installed now or later.
These are the minimum sizes of power cables we
recommend for the different models:
Cable length:< 1,5 m 1,5 - 4 m >4 m
A1/A2 10 mm
A3 / A4 / A5 16 mm
A6 21 mm
A7 16 mm
A8 10 mm
The ground cable must have the same size.
Max fuse values for different cable sizes:
2
6 mm
16 mm2 (5AWG) :60 A 21 mm2 (4AWG) :100 A
33 mm2 (2AWG) :150 A 42 mm2 (1AWG) :200 A
(9 AWG) :25 A 10 mm2 (7AWG) :40 A
2
2
2
2
2
16 mm
21 mm
33 mm
21 mm
16 mm
2
2
2
2
2
21 mm
33 mm
50 mm
33 mm
21 mm
2
2
2
2
2
2
ULTIMATE A-series
Tools and material needed
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
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
Routing wires
Stereo
head unit
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,
preferably AWG 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.
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.
Two min. 5 gauge ring crimp terminals –one
for connection to the battery plus and one
for the amplifier ground connection.
Wire ties
Insulating grommet or insulating tube
Professional Tip:
Gauge (ga) is an American measure for cable size,
also called AWG (American Wire Gauge).
CONVERSION GAUGE - mm
0 AWG = 50 mm
1 AWG = 42 mm
2 AWG = 33 mm
3 AWG = 27 mm
4 AWG = 21 mm
5 AWG = 16 mm
6 AWG = 13 mm
7 AWG = 10 mm
8 AWG = 8 mm
2
2
2
2
2
2
2
2
2
9 AWG = 6,8 mm
10 AWG = 5,3 mm
11 AWG = 4,2 mm
12 AWG = 3 mm
13 AWG = 2,7 mm
14 AWG = 2 mm
15 AWG = 1,65 mm
16 AWG = 1,3 mm
2
2
2
2
2
2
2
2
2
3
Wiring
Power, remote and fan terminals
Power terminal for A1, A2, A5, A7, A8
Connect the fuse holder as close to the vehicle battery
+ as possible, using AWG 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.
DLS
Battery 12V
DLS FH1B
or FH2B
fuse holder
POWER IN
BATT+ REMOTE GND
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.
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.
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.
POWER IN
BATT+ REMOTE GND
FM1 107,3
Connect the battery cable to the +12 Volt terminal
on the amplifier. Model A2, A5 and A7 accepts AWG
4 = 21 mm2 direct into the terminal, A1, and A8
accepts AWG5 = 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.
Use wire ties to secure to existing cables in the engine
compartment.
Power terminal for A3, A4 & A6
POWER IN
Fuse
150 A
BAT+ REM GND
To remote
on head unit
POWER
PROTECT
+
Battery
12 volt
These models have double DC inputs. The terminals 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).
4
POWER IN /POWER CAP
GND FAN OUT POS+
Fan12 V
Power
capacitor
Ground Terminal ( GND )
Connect to a good chassis ground. The ground
connection should be clean, unpainted metal to provide 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
afterwards.
POWER IN
BATT+ REMOTE GND
Fan terminal
DLS A3, A4, A5, A6 and A7 has a fan
output terminal. On A3, A4 and A6 the
terminal is combined with the extra
DC-terminal. The output is
electronically controlled and starts if
the amplifiers is overheated. The terminal is marked "FAN”.
Use a 12 volt DC fan.The speed of
the fan increases when the temperature 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.
FAN
- +
Fan 12 V
Fuses
Use only ATC blade type
fuses. Make sure to replace
with the same value. The
value is printed above the
fuse holders. DLS A4 has no
internal fuses, use an
external fuse instead.
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.
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 speaker cables, power cables and remote control cable.
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
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.
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.
Input Level control
LEVEL
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
PHASE
clockwise until you experience
that the bass sound is coming
from the front. If you dont get the
0
DEGREE
result you want, also try to phase
reverse the subwoofer
connections and make a new
adjustment. On A5 you find this
control on the amplifiers left side.
Remote bass level and phase shift
control on A5, A6 and A7
A remote level and phase
shift control is included with
A5, A6 and A7 amplifiers.
You can adjust the bass
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 besides the socket, to IN-position.
Remote Bass Level &
phase shift control
Remote Bass
Level
IN
OUT
Phase
180
Level
7V 0,5V
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
and A8 it´s necessary to adjust the levels indiviually
to achieve a good sound balance between the different 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.
Power / Protect light
The power light (blue) is turned on when
Power
(Blue)
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.
the amplifier is turned on.
The protect light ( red ) is turned on
when the amplifier shuts down from
overheating, or a short circuit (speaker
failure)
5
Input and controls A7
ULTIMATE A7
FRONT SPEAKERS
+LEFT- +RIGHT-
LEVEL
3,5V
7V 0,2V
HP-filter
240
80 400
Hz
x20 change
by bottom switch
SIGNAL INPUTS
IN
FRONT REAR
LEFT RIGHT LEFT RIGHT
OUT
Input Wiring
DLS A7 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.
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 speaker cables, power cables and
remote control cable.
The amplifier has separate
input sockets for front, rear
and sub channel.
There are two switches
located under the amplifier
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:
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:
3,5V
7V 0,2V
REAR SPEAKERS
+LEFT- +RIGHT-
HP-filter
240
80 400
Hz
IN
OUT
LP-filter
IN
2
0,3 4
kHz
OUT
x10 change
by bottom switch
LEVEL
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:
Separate input cables to front and rear. Then
internally connected to the sub channel.
Input
Front Rear
x 1
HP
x 20
Front
nput to
rear & sub
Amplifier front
Rear
input to
sub
LP
x 1
x 10
Input
Sub
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:
Sub input
separate
Sub input
from rear
A singhle RCA feeds all channels
Input
Front Rear
x 1
HP
x 20
Front
input to
rear & sub
Amplifier front
Rear
input to
sub
LP
x 1
6
x 10
Input
Sub
Sub input
separate
Sub input
from rear
Separate input cables to all channels.
Input
Front Rear
x 1
HP
x 20
Front
input to
rear & sub
Amplifier front
Rear
input to
sub
LP
x 1
x 10
Input
Sub
Sub input
separate
Sub input
from rear
Crossovers / filters (general)
DLS A-series amplifiers include highpass filter (HP)
and lowpass filters (LP).
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 normal 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. A normal 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 bottom pole plate) at high volumes, use the HP-filter
to avoid this with a setting at 50 - 80 Hz.
A subsonic filter is actually a HP-filter.
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.
Active crossover.
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
DLS A1
DLS A1 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 A2 och A3
DLS A2 and A3 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.
ULTIMATE A-series
DLS A4
DLS A4 is equipped with adjustable HP-and LP- filters on all channels. These can also be switched in/
out. The filters are equipped with a multiplication
button for improved flexibility.
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:
DLS A5 has an internal adjustable HP-filter that can
be switched in/out. It can be set from 50 up to 150
Hz.
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.
DLS A6
DLS A6 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.
It also has a LP-filter adjustable from 50 - 125 Hz.
This filter can not be disconnected.
DLS A7
This is a five channel amplifier with a lot of filter
possibilities described in detail on page 8.
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.
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
ULTIMATE A7
FRONT SPEAKERS
+LEFT- +RIGHT-
LEVEL
3,5V
7V 0,2V
HP-filter
240
80 400
Hz
x20 change
by bottom switch
SIGNAL INPUTS
IN
FRONT REAR
LEFT RIGHT LEFT RIGHT
OUT
Crossovers / filters on A7
DLS A7 amplifier include highpass filter (HP),
lowpass filter (LP). On the two front channels the HPfilter can be switched between two different frequency
ranges, likewise for the LP-filter on the rear channels.
Highpass filter on front channels
The slope of the HP-filter is
12 dB / octave.
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 bottom plate changes the filters frequency range from the
normal 80-400 Hz to 1600 8000 Hz. A normal setting is
3-5 kHz.
If you run a 3-way system
on the amplifier you can use
this filter for active crossover between midbass and
midrange speakers, a
typical setting is 400 Hz.
Input
Front Rear
Amplifier front
HP-filter
240
80 400
Hz
x20 change
by bottom switch
Input
Sub
IN
OUT
3,5V
7V 0,2V
REAR SPEAKERS
+LEFT- +RIGHT-
HP-filter
240
80 400
Hz
IN
OUT
LP-filter
IN
2
0,3 4
kHz
OUT
x10 change
by bottom switch
LEVEL
Lowpass filter on rear channels
LP-filter
2
0,3 4
kHz
x10 change
by bottom switch
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 system.
If you run a 3-way system on the amplifier you can
use this filter for active crossover between midbass
and midrange speakers. A typical setting is 400 Hz.
Input
Front Rear
Front
x 1
input to
HP
rear & sub
x 20
IN
OUT
Amplifier front
Rear
input to
sub
LP
x 1
x 10
Input
Sub
Sub input
separate
Sub input
from rear
Front
x 1
input to
rear & sub
HP
x 20
Filters on sub
channel
x 1
Rear
input to
sub
LP
x 10
Sub input
separate
Sub input
from rear
Lowpass
90
50 125
Hz
The sub channel is made only for subwoofer use
and has a variable LP-filter that can be switched onoff. A normal setting for the LP-filter is 60-80 Hz.
8
LP x10 swith under the bottom plate
Highpass filter on rear channels
This HP-filter is normally
used as a high pass filter
blocking very low frequencies
from reaching the speakers. It
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.
The filter can be switched off
if you want to run the amplifier
in full range mode.
HP-filter
240
80 400
Hz
IN
OUT
ULTIMATE A-series
Professional Tip:Professional Tip:
NOISE PROBLEMS
WHINING NOISE VARYING WITH ENGINE
REVOLUTIONS:
Do this:
1. Rewire the power supply (12 V) to source
unit direct from battery.
2. Rewire ground wire from source unit to
clean position on chassis.
3. Check all power connections to ensure that
they are clean and tight.
4. Check quality of system ground connection.
5. Install a Power Cap capacitor. This can be
helpful against most noise problems.
CONSTANT WHINING NOISE:
Do this:
1. Ensure that all equipment has a common
ground point.
2. Check quality of earth strap connection from
battery negative terminal to chassis.
3. 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, reroute original cable away from source of
interference.
If noise remains regardless of cable position,
try to use so called Quasi-balanced signal
cables. DLS PRO and Ultimate-cables are
Quasi-balanced.
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 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.
+
Battery
1,5 Volt
+
-
-
NOTE! Tweeters can not be tested this way,
double check the connections instead.
Professional Tip:
Installing in trunk
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.
Professional Tip:
Crimp connections
Purchase crimp connectors and crimping tool.
Connectors are color coded.
1. Strip 1/4 inch (6 mm) of insulation from the wire.
2. Insert into connector
3. Crimp tightly
Professional Tip:
Securing wires
Use wire ties to bundle together when possible.
(But never bundle speaker wires or signal cables
together with power wires).
Professional Tip:
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.
9
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
You can use all DLS coaxial, 2-way
or 3-way systems in this example.
The speaker impedance must be 4
ohm.
Highpass filter
not in use.
Lowpass filter
SIGNAL INPUT
LEFT RIGHT
not in use.
Button out
Pre out
FM1 107,3
HP-filter LEVEL
100
200
20
Hz
HP-filter LEVEL
IN
100
20 200
OUT
7,0V 0,2V
IN
OUT
3,5V
+
3,5V
7,0V 0,2V
SPEAKERS
+LEFT- +RIGHT-
-
HP-filter LP-filter LEVEL
100
200
Hz
IN
OUT
20
POWER
PROTECT
100
200
Hz
FUSE
30
IN
20
OUT
POWER IN
BATT+ REMOTE GND
+
Fuse
60 A
+
Battery
12 volt
3,5V
7,0V 0,2V
Both
buttons
in out
position
Remote
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
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.
ULTIMATE A1-A2
2. Two stereo speaker pairs
connected in parallel
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 HPfilter to
avoid this
with a setting at 50 80 Hz or
higher.
Make your
own tests.
SIGNAL INPUT
LEFT RIGHT
Pre out
FM1 107,3
20 200
Button out
Remote
DLS A1
HP-filter LEVEL
100
20
200
Hz
HP-filter LEVEL
IN
OUT
3,5V
7,0V 0,2V
100
IN
7,0V 0,2V
OUT
SPEAKERS
+LEFT- +RIGHT-
+
-
+
-
3,5V
DLS A2
HP-filter LP-filter LEVEL
100
200
Hz
IN
OUT
20
POWER
PROTECT
100
200
Hz
FUSE
30
IN
20
OUT
POWER IN
BATT+ REMOTE GND
+
Fuse 60 A
-
+
+
Battery
12 volt
3,5V
7,0V 0,2V
Both
buttons
in OUTposition
3. Connection in mono
with one subwoofer in
bridge mode.
Button IN
SIGNAL INPUT
LEFT RIGHT
Pre out
FM1 107,3
HP-filter LEVEL
100
20 200
IN
OUT
HP-filter LEVEL
100
20
200
Hz
SPEAKERS
+LEFT- +RIGHT-
3,5V
7,0V 0,2V
+
DLS A1
IN
OUT
3,5V
7,0V 0,2V
POWER
PROTECT
-
FUSE
DLS A2
HP-filter LP-filter LEVEL
IN
100
20
200
Hz
OUT
POWER IN
BATT+ REMOTE GND
20
100
200
Hz
Button IN
Filter setting
30
A1:
HP-filter: 25-30
Hz
LP-filter: fixed
70 or 90 Hz
A2:
HP-filter: 25-30
Hz
Fuse 60 A
+
LP-filter. 70-80
Hz
Battery
12 volt
IN
OUT
3,5V
7,0V 0,2V
Button IN
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
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-).
1. In stereo with one front and
one rear speaker system.
You can use all DLS coaxial, 2-way or
3-way speaker systems in this
example. Speaker impedance must be
4 ohm.
For power cable, speaker cable and
fuse size selection see page 4.
Highpass filter not in use.
Lowpass filter not in use.
SIGNAL INPUT
LEFT RIGHT
Pre out
HP-filter HP-filter LP-filter Phase LP-filter LEVEL
100
20 200
IN
OUT
90
15 125
Button out
+180
0
LEFT FUSES
30 A x 2
IN
OUT
DC-FEED DLS A3
POWER IN
BAT+ REM GND
30
30
Fuse
150 A
+
Battery
12 volt
SPEAKERS
3,5V
7,0V 0,2V
+LEFT- +RIGHT-
+
- +
POWER
PROTECT
To remote
on stereo / CD
-
POWER IN /POWER CAP
GND FAN OUT POS+
Fan12 V
RIGHT FUSES
30 A x 2
Power
capacitor
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 HPfilter to avoid this with
a setting at 50 - 80 Hz
or higher. Make your
own tests.
30
30
12
FM1 107,3
+
- +
-
ULTIMATE A3
2. One or more subwoofers
in mono bridge mode
You can use all DLS subwoofers in
this example.
Speaker impedance must be 4 ohm.
For power cable, speaker cable and
fuse size selection see page 4.
Adjust the HP- and LP-filter settings
as in the drawing
HP-filter setting: 30 Hz
LP-filter setting: 60-80 Hz
Button in
DC - FEED DLS A3
LEFT FUSES
30 A x 2
30
Fuse
150 A
Battery
12 volt
Button in
30
POWER IN
BAT+ REM GND
To remote
on stereo / CD
+
POWER
PROTECT
POWER IN /POWER CAP
GND FAN OUT POS+
Fan12 V
RIGHT FUSES
30 A x 2
Power
capacitor
30
30
SIGNAL INPUT
LEFT RIGHT
Pre out
FM1 107,3
HP-filter HP-filter LP-filter PHASE LP-filter LEVEL
+180
0
IN
OUT
IN
OUT
3,5V
7,0V 0,2V
3,5V
7,0V 0,2V
IN
100
20 200
Hz
HP-filter HP-filter LP-filter Phase LP-filter LEVEL
100
20 200
OUT
50 125
IN
OUT
90
Hz
15 125
+180
0
90
With the PHASE button you
can phase shift the phase
on the speaker output
terminals.
SPEAKERS
+LEFT- +RIGHT-
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
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.
If you have a 4 ohm sub with dual voice coils
you can connect the coils in parallel.
13
ULTIMATE A4
WIRING EXAMPLES A4
1. Connecting a front
system in stereo and a subwoofer in mono bridge mode.
You can use all DLS coaxial, 2-way,
3-way systems and subwoofers in this
example.
All speakers must be 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.
HP-filter setting: 80-100 Hz
LP-filter not in use
Button in Button out
DC - FEED DLS A4
POWER IN /POWER CAP
GND FAN OUT POS+
Fan 12 V
25
Battery
12 volt
POWER IN
BAT+ REM GND
To remote
on stereo / CD
+
POWER
PROTECT
LEFT FUSES
25 A x 2
25
Fuse
150 A
If you use both DC-inputs for the DC feed,
connect a Fuse block with two 70 Amp fuses, one
for each input.
RIGHT FUSES
25 A x 2
25
Power
capacitor
25
FRONT INPUTS
LEFT RIGHT
Pre out
front
REAR SPEAKERS
+LEFT- +RIGHT-
HP-filter HP-filter HP-filter LP-filter LP-filter LEVEL
100
20 200
3X
1X
IN
OUT
90
50 125
IN
OUT
Button out
HP-filter setting: 30 Hz
LP-filter setting: 70-80 Hz
Button in
LEVEL LP-filter LP-filter LP-filter HP-filter HP-filter
3,5V
7V 0,2V
IN
OUT
Button in
2X
20 200
1X
100
3,5V
7,0V 0,2V
IN
OUT
100
20 200
FRONT SPEAKERS
+LEFT- +RIGHT-
+
FM1 107,3
REAR INPUTS
LEFT RIGHT
-
+-
Pre out
rear
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
14
Subwoofer
4 ohm
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.
2. A front system connected
in stereo bridge mode on all
four channels.
You can use all DLS coaxial, 2-way or
3-way speaker systems in this
example.
Speaker impedance must be 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.
DC-FEED DLS A4
LEFT FUSES
25 A x 2
25
Fuse
150 A
POWER IN
BAT+ REM GND
25
+
Battery
12 volt
POWER
PROTECT
To remote
on stereo / CD
ULTIMATE A4
POWER IN /POWER CAP
GND FAN OUT POS+
Fan 12 V
RIGHT FUSES
25 A x 2
Power
capacitor
25
25
HP-filter not in use.
LP-filter not in use.
Button out Button out
FRONT INPUTS
LEFT RIGHT
HP-filter HP-filter HP-filter LP-filter LP-filter LEVEL
3X
100
20 200
IN
1X
OUT
Pre out
front
Button out
HP-filter not in use.
LP-filter not in use.
Button out
IN
90
50 125
OUT
Button out
If you use both DC-inputs for the DC feed,
connect a Fuse block with two 70 Amp fuses, one
for each input.
If you have problems
with the mid bass driver ”reaching the bottom” (the voice coil
touches the bottom
pole plate) at high
3,5V
7,0V 0,2V
FRONT SPEAKERS
+LEFT- +RIGHT-
volumes, use the HPfilter to avoid this with
a setting at 50 - 80 Hz
or higher. Make your
+
own tests.
-
FM1 107,3
Pre out
rear
REAR SPEAKERS
+LEFT- +RIGHT-
-
+
LEVEL LP-filter LP-filter LP-filter HP-filter HP-filter
IN
3,5V
7V 0,2V
OUT
2X
1X
20 200
100
IN
OUT
100
20 200
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
REAR INPUTS
LEFT RIGHT
15
3. Connecting a 3-way
5
5
5
5
5
5
5
5
system using active crossover
between woofer and midrange.
DC-FEED DLS A4
LEFT FUSES
25 A x 2
POWER IN
BAT+ REM GND
POWER
ULTIMATE A4
POWER IN /POWER CAP
GND FAN OUT POS+
RIGHT FUSES
25 A x 2
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.
Speaker impedance must be 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.
HP-filter setting: 400 Hz
LP-filter not in use
Button in Button out
FRONT INPUTS
LEFT RIGHT
HP-filter HP-filter HP-filter LP-filter LP-filter LEVEL
3X
IN
OUT
90
50 125
100
20 200
1X
IN
OUT
25
25
PROTECT
Fuse
150 A
To remote
on stereo / CD
+
Battery
12 volt
Fan 12 V
If you use both DC-inputs for the DC feed,
connect a Fuse block with two 70 Amp fuses, one
for each input.
FRONT SPEAKERS
3,5V
7,0V 0,2V
+LEFT- +RIGHT-
25
Power
capacitor
25
HP-filter not in use
LP-filter setting: 400 Hz
Button in
REAR SPEAKERS
+LEFT- +RIGHT-
+
LEVEL LP-filter LP-filter LP-filter HP-filter HP-filter
3,5V
7V 0,2V
-
+-
Button in
FM1 107,3
Button out
IN
OUT
Button in
Bass/midbass
drivers
234
Pre out
234
234
234
234
+
-
Passive crossover boxes
234
234
for tweeters and midrange
234
+
-
Midrange
drivers
front
+
-
+
Tweeters
-
If you have problems
with the mid bass driver ”reaching the bottom” (the voice coil
2X
1X
100
20 200
IN
OUT
100
20 200
REAR INPUTS
LEFT RIGHT
touches the bottom
pole plate) at high
volumes, use the HPfilter to avoid this with
a setting at 50 - 80 Hz
or higher. Make your
own tests.
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
ULTIMATE A5
WIRING EXAMPLES A5
Connection of a front system in
stereo and a subwoofer in mono.
DC - FEED DLS A5
FUSES 30 A x 3
30
30
Fuse
100 A
HP-filter setting: 80 Hz
POWER IN
BATT+ REM GND
30
+
Battery
12 volt
To remote
on stereo / CD
You can use all DLS coaxial, 2-way, 3-way systems and
subwoofers in this example.
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.
FAN
POWER
- +
PROTECT
Use a 2 mm hexagon key to speaker and
fan terminals. Use a 2,5 mm hexagon key
to the remote terminal. Use a 3 mm hexagon key to DC input terminals.
DLS A5 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.
Fan 12 V
Subsonic-filter setting: IN (fixed 25 Hz)
LP-filter setting: 70-80 Hz
Button in
REAR SPEAKERS
+LEFT- +RIGHT-
+
-
+-
Left side of A5 (part of)
Remote
Bass level /
Phase
LEVEL HP-filter
IN
3,5V
7V 0,2V
OUT
IN
Phase
0
+180
OUT
110
80 150
Hz
Pre out
front
Remote Bass
Level & Phase
control
SIGNAL INPUTS
FRONT S UB
LEFT RIGHT LEFT RIGHT
FM1 107,3
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.
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.
Phase
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.
Button in
Subsonic Filter
IN
OUT
Pre out
sub or
rear
Low-Pass LEVEL
65
40 90
3,5 V
7,0 V 0,2 V
SUBWOOFER
+ SPEAKER -
Subwoofer
4 ohm
17
ULTIMATE A6
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.
DC - FEED DLS A6
FUSES
35 A x 2
35
Fuse
150 A
POWER IN
35
Battery
12 volt
BAT+ REM GND
To remote
on stereo / CD
+
POWER
PROTECT
Subsonicfilter setting: IN (fixed 25 Hz)
LP-filter setting: 70-80 Hz
Button in
POWER IN /POWER CAP
GND FAN OUT POS+
Fan12 V
FUSES
35 A x 2
Power
capacitor
35
35
SIGNAL INPUT
LEFT RIGHT
FM1 107,3
Sub Remote Bass
sonic Level
IN
IN
OUT
OUT
Phase
Phase LP-filter LEVEL
+90
90
0 +180
50 125
Level
7,0V 0,2V
Remote Bass
Level & Phase
control
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.
SPEAKERS
3,5V
+ - + -
Subwoofer
4 ohm
Subwoofer
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.
18
ULTIMATE A7
WIRING EXAMPLES A7
Example 1: Speaker wiring with front speakers, rear speakers and one or
more subwoofers
HP-filter: 80 Hz
Button in
FRONT SPEAKERS
+LEFT- +RIGHT-
LEVEL
3,5V
7V 0,2V
HP-filter
240
80 400
Hz
x20 change
by bottom switch
SIGNAL INPUTS
IN
FRONT REAR
LEFT RIGHT LEFT RIGHT
OUT
Pre out
front
+
-
+-
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 HPfilter 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.
HP-filter: 80 Hz
LP-filter not in use.
HP-filter
IN
240
80 400
Hz
OUT
Pre out
rear
SIGNAL INPUT
LEFT SUB RIGHT
Button outButton in
LP-filter
2
0,3 4
kHz
x10 change
by bottom switch
IN
OUT
LEVEL
3,5V
7V 0,2V
LP-filter: 70- 80 Hz
Remote Bass
Level
IN
OUT
PHASE
90
O 180
Degree
FILTER
Low-pass LEVEL
50 125
REAR SPEAKERS
+LEFT- +RIGHT-
+
90
3,5V
7,0V 0,2V
-
+-
SUB-WOOFER
+ SPEAKERS -
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
Level
FM1 107,3
Phase
Remote Bass Level
& Phase control
Switch settings in this example
HP: x1
LP: x1
Input
Front Rear
x 1
HP
x 20
Input to
front, rear
& sub
Amplifier front
Input to
rear
& sub
LP
x 1
x 10
Input
Sub
Sub input
separate
Sub input
common
Subwoofer
2 - 4 ohm
19
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:
4 kHz
Button in
FRONT SPEAKERS
+LEFT- +RIGHT-
+
-
LEVEL
3,5V
7V 0,2V
80 400
Hz
x20 change
by bottom switch
+-
Tweeters with active high-pass
x-over setting at 4 kHz
HP-filter
240
SIGNAL INPUTS
IN
FRONT REAR
LEFT RIGHT LEFT RIGHT
OUT
Pre out
front
FM1 107,3
HP-filter setting: 80 Hz
LP-filter setting: 4 kHz.
Button in
HP-filter
240
80 400
Hz
IN
OUT
LP-filter
IN
2
0,3 4
kHz
OUT
x10 change
by bottom switch
Pre out
rear
Midbass/midrange speakers with
active low-pass x-over setting
at 4 kHz
LP-filter: 70- 80 Hz
Button in
3,5V
7V 0,2V
REAR SPEAKERS
+LEFT- +RIGHT-
LEVEL
+
-
+-
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.
Filter settings:
Front: HP-filter 4 kHz with x20-
switch in x20 position
Rear: HP-filter 80 Hz or fullrange
LP-filter IN, setting 4 kHz with
x10 switch in position x1
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
20
SIGNAL INPUT
LEFT SUB RIGHT
FM1 107,3
Remote Bass
Level
IN
OUT
Phase
PHASE
90
O 180
Degree
Level
FILTER
Low-pass LEVEL
90
50 125
Remote Bass Level
& Phase control
Switch settings in this example
HP: x20
LP: x1
Input
Front Rear
x 1
HP
x 20
Input to
front, rear
& sub
Amplifier front
Input to
rear
& sub
LP
x 1
x 10
3,5V
7,0V 0,2V
Input
Sub
SUB-WOOFER
+ SPEAKERS -
Subwoofer
2 - 4 ohm
Sub input
separate
Sub input
common
ULTIMATE A7
WIRING EXAMPLES A7
Example 3: System with front speaker system, rear fill speakers and one
or more subwoofers
Highpass filter 80 Hz
Button in
FRONT SPEAKERS
+LEFT- +RIGHT-
Filter
box
+
-
+
-
LEVEL
7V 0,2V
Filter
box
+
-
+
-
Two-way front system
3,5V
HP-filter
IN
240
80 400
Hz
OUT
x20 change
by bottom switch
Pre out
front
SIGNAL INPUTS
FRONT REAR
LEFT RIGHT LEFT RIGHT
FM1 107,3
Highpass filter 125 Hz
Lowpass filter setting 6 kHz
HP-filter
240
80 400
Hz
IN
OUT
0,3 4
kHz
LP-filter
IN
2
OUT
x10 change
by bottom switch
Pre out
rear
Rear fill speakers 125 Hz to 6 kHz
Lowpass filter 70- 80 Hz
Button inButton in
LEVEL
3,5V
7V 0,2V
REAR SPEAKERS
+LEFT- +RIGHT-
+
-
+-
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.
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
Use one, two or three RCA-cables for
signal from head unit to amplifier.
See page 5 for detailed instructions
SIGNAL INPUT
LEFT SUB RIGHT
FM1 107,3
Remote Bass
Level
IN
OUT
Phase
PHASE
90
O 180
Degree
Level
FILTER
Low-pass LEVEL
Remote Bass Level
& Phase control
Switch settings in this example
HP: x1
LP: x10
Input
Front Rear
x 1
HP
x 20
Input to
front, rear
& sub
Amplifier front
Input to
rear
& sub
LP
x 1
90
50 125
7,0V 0,2V
x 10
3,5V
SUB-WOOFER
+ SPEAKERS -
Subwoofer
2 - 4 ohm
Input
Sub
Sub input
separate
Sub input
common
21
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:
400 Hz
Button in
3,5V
HP-filter
240
80 400
Hz
x20 change
by bottom switch
FRONT SPEAKERS
+LEFT- +RIGHT-
Filter
box
+
-
+
-
LEVEL
7V 0,2V
Filter
box
+
-
+
-
Midrange and tweeters with active
highpass x-over setting at 400 Hz.
Passive x-over between
midbrange and tweeters
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.
SIGNAL INPUTS
IN
FRONT REAR
LEFT RIGHT LEFT RIGHT
OUT
Pre out
front
FM1 107,3
SIGNAL INPUT
LEFT SUB RIGHT
FM1 107,3
HP-filter setting: 80 Hz
LP-filter setting: 400 Hz.
HP-filter
240
80 400
Hz
IN
0,3 4
kHz
OUT
x10 change
by bottom switch
LP-filter
2
IN
OUT
Pre out
rear
Midbass with active lowpass xover setting at 400 Hz.
LP-filter: 70- 80 Hz
Remote Bass
Level
IN
OUT
Phase
PHASE
90
O 180
Degree
Level
Button InButton in
LEVEL
3,5V
7V 0,2V
FILTER
Low-pass LEVEL
90
50 125
REAR SPEAKERS
+LEFT- +RIGHT-
+
3,5V
7,0V 0,2V
-
+-
SUB-WOOFER
+ SPEAKERS -
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
Sub: LP-filter 70-80 Hz
Use one, two or three RCA-cables for
signal from head unit to amplifier.
See page 5 for detailed instructions
22
Remote Bass Level
& Phase control
Switch settings in this example
HP: x1
LP: x1
Input
Front Rear
x 1
HP
x 20
Amplifier front
LP
x 1
x 10
Subwoofer
2 - 4 ohm
Input
Sub
WIRING EXAMPLES A8
Example 1: Speaker wiring with front and rear speakers
ULTIMATE A8
LP-filter not in use
FRONT SPEAKERS
+LEFT- +RIGHT-
+
LP-filter not in use.
Button Out
IN
LEVEL
5V 0,5V
-
LP-filter
50 125
OUT
Hz
HP-filter change
by bottom switch
Pre out
front
FRONT INPUTS REAR
LEFT RIGHT LEFT RIGHT
Pre out
rear
+-
FM1 107,3
Use one RCA cable with Y-split, or two
separate RCA-cables for signal from head
unit to amplifier.
Button out
IN
LP-filter
50 125
OUT
Hz
HP-filter change
by bottom switch
LEVEL
5V 0,5V
REAR SPEAKERS
+LEFT- +RIGHT-
+
-
+-
Filter settings:
Front: HP-filter 85 Hz or OFF
LP-filter OUT
Rear: HP-filter 85 Hz or OFF
LP-filter OUT
Example 2: Speaker wiring with a front speaker system and one or more
subwoofers
LP-filter not in use
Button Out
FRONT SPEAKERS
+LEFT- +RIGHT-
+
-
LEVEL
5V 0,5V
IN
OUT
HP-filter change
by bottom switch
+-
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
FRONT INPUTS REAR
LEFT RIGHT LEFT RIGHT
50 125
Hz
Pre out
front
FM1 107,3
Use one RCA cable with Y-split, or two
separate RCA-cables for signal from head
unit to amplifier.
LP-filter setting:
70 - 80 Hz.
LP-filter
50 125
Hz
HP-filter change
by bottom switch
Pre out
rear
Button in
IN
LEVEL
5V 0,5V
OUT
REAR SPEAKERS
+LEFT- +RIGHT-
Subwoofer
2 - 4 ohm
Filter settings:
Front: HP-filter 85 Hz or OFF
LP-filter OUT
Rear: HP-filter 85 Hz or OFF
LP-filter IN
23
ULTIMATE A8
WIRING EXAMPLES A8
Example 2: Speaker wiring with subwoofers in bridge mode to both front
and rear channels
FRONT SPEAKERS
+LEFT- +RIGHT-
Subwoofer
2 - 4 ohm
LP-filter setting:
70 - 80 Hz.
Button in
LEVEL
IN
LP-filter
5V 0,5V
50 125
OUT
Hz
HP-filter change
by bottom switch
Pre out
front
Use one RCA cable with Y-split, or two
separate RCA-cables for signal from head
unit to amplifier.
FRONT INPUTS REAR
LEFT RIGHT LEFT RIGHT
FM1 107,3
LP-filter setting:
70 - 80 Hz.
Button in
IN
LP-filter
50 125
OUT
Hz
HP-filter change
by bottom switch
Pre out
rear
LEVEL
5V 0,5V
REAR SPEAKERS
+LEFT- +RIGHT-
Subwoofer
2 - 4 ohm
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
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.
Reconnect Battery
When wiring is complete,
reconnect the battery
negative terminal.
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
connection.
2. Turn up the head units volume slightly. All
speakers should operate. if not, check wiring
connections at amplifier and speakers.
Test speaker connections
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.
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.
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.
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.
THE AMPLIFIER TURNS OFF AFTER 10 - 30 MINUTES.
The amplifier is overheating due to inadequate ventilation. Check mounting position is free from obstruction.
Do this:
1. Move the amplifier to a place with better ventil-
ation.
2. Install one or two fans to cool down the heatsink.
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. Balance control position.
2. Fader control position.
3. Speaker cable connections to both amplifier and
drivers.
4. Signal lead plugs and cables.
5. Change left and right signal lead plugs in the
amplifier to see if the problem moves to a different speaker, the lead has a fault.
If the problem remains, the speaker or amplifier
are at fault.
25
SPECIFICATIONS A1 to A6
Model A1 A2 A3 A4
Number of channels 2 2 2 4
Working mode AB AB AB AB
Power output at 13,8 Volt, 20 Hz - 20 kHz, THD max 0,1%:
RMS power output in 4 ohm 2 x 45 W 2 x 85 W 2 x 150 W 4 x 85 W
RMS power output in 2 ohm 2 x 80 W 2 x 145 W 2 x 270 W 4 x 145 W
RMS power output in 1 ohm 2 x 120 W 2 x 220 W 2 x 425 W 4 x 220 W
RMS power output, 4 ohm bridged 160 W 290 W 550 W 2 x 250 W
RMS power output, 2 ohm bridged 240 W 450 W 870 W 2 x 400 W
RMS power output, 1,33 ohm bridged 1000 W
THD < 0,1% < 0,1% < 0,1% < 0,1%
S/N ratio, A-weighted > 100 dB > 100 dB > 100 dB >100 dB
Damping factor > 200 > 200 > 200 > 200
Input impedance 10 kohm 10 kohm 10 kohm 10 kohm
Input sensitivity 0,2 - 7 volt 0,2 - 7 volt 0,2 - 7 volt 0,2 - 7 volt
Filter highpass 20 - 200 Hz* 20 - 200 Hz* 20 - 200 Hz* see below
Filter lowpass OFF/70/90 Hz 50 - 125 Hz* 50 - 125 Hz* ”
* can be switched in/out
Filter slope 12 dB/octave 12 dB/octave 12 dB/octave 12 dB/octave
Fuses 30 A 30 A x 2 30 A x 4 no internal fuses
Max cable size, DC-terminal 16 mm
Max cable size, speaker terminal 10 mm2 (7AWG) 10 mm2 (7AWG) 16 mm2 (5AWG) 10 mm2 (7AWG)
Protection Current & thermal Current & thermal Current & thermal Current & thermal
Power consumption:
Idle 0,5 A 0,6 A 1,1 A 1,5 A
Maximum 32 A 60 A 140 A 95 A
Dimensions:
Width x Height x Depth (mm) 205 x 73 x 240 265 x 73 x 240 410 x 73 x 240 465 x 73 x 240
(inch) 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
2
(5AWG) 21 mm2 (4AWG) 21 mm2 (4AWG) 21 mm2 (4AWG)
Filter configuration DLS A4
Front: Rear:
Lowpass 50 - 125 Hz Lowpass 45 - 200 Hz or 90 - 400 Hx (x 2 button)
Highpass 20 - 200 Hz or 60 - 600 Hz (x 3 button) Highpass 20 - 200 Hz
Model A5 A6
Number of channels 3 1
Working mode AB AB
Power output at 13,8 Volt
Front channels:
RMS power output in 4 ohm 2 x 85 W
RMS power output in 2 ohm 2 x 100 W
Sub channel:
Nominal power RMS in 4 ohm 300 W 500 W
Typical power RMS in 2 ohm 500 W 870 W
Typiocal power RMS in 1 ohm 780 W 1200 W
THD < 0,1% <0,1%
S/N ratio, A-weighted > 100 dB >100 dB
Damping factor > 200 > 200
Input impedance 10 kohm 10 kohm
Input sensitivity 0,2 - 7 volt 0,2 - 7 volt
Filter highpass 50 - 150 Hz / 6 dB
Filter lowpass 40 - 90 Hz / 12 dB 50 - 125 Hz / 12 dB
Subsonic filter 25 Hz /18 dB 25 Hz / 18 dB
Phase control 0-180 degree continious 0-180 degree continious
Remote bass level & phase control Included Included
Fuses 3 x 30 A 4 x 35 A
Max cable size, DC terminal 21 mm
Max cable size, speaker terminal 6/10 mm
Protection Current & thermal Current & thermal
Power consumption:
Idle 0,5 A 0,5 A
Maximum 90 A 140 A
Dimensions:
Width x Height x Depth (mm) 410 x 73 x 240 410 x 73 x 240
(inch) 16,15 x 2,87 x 9,45 16,15 x 2,87 x 9,45
2
(4AWG) 21 mm2 (4AWG)
2
(10/7AWG) 10 mm2 (7AWG)
26
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 4 x 60 W
Power output in 2 ohm 4 x 100 W
Power output in bridge mode 2 x 200 W
Subchannel:
Power output in4 ohm 1 x 300 W
Power output in 2 ohm 1 x 440 W
Power output in 1 ohm 1 x 600 W
S / N ratio, A-weighted >100 dB
Damping factor >200
Input impedance >10k
Input sensitivity 0,3 - 7V
Fan output terminal Yes (max 500 mA)
Remote bass & phase control Yes
Fuses 20A x 2, 35A x2
Max cable size, DC-terminal 21 mm
Max cable size, speaker terminal 10 mm
Protection Current & thermal
2
(4AWG)
2
(7AWG)
ULTIMATE A7
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)
Power consumption:
Idle 1,1 A
Maximum 120 A
Dimensions (mm) 605x240x73
Dimensions (inch) 23,82x 9,45x2,87
Weight 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 4 x 40 W
Power output in 2 ohm 4 x 80 W
Mono bridge mode:
Power output in 4 ohm 2 x 165 W
Power output in 2 ohm 2 x 220 W
Tri-mode operation 4 ohm: 2 x 40 W + 1 x 195 W
Tri-mode operation 2 ohm: 2 x 75 W + 1 x 230 W
Tri-mode operation 4/2 ohm: 2 x 40 W + 1 x 250 W
S / N ratio, A-weighted >100 dB
Damping factor >200
Input impedance >10k
Input sensitivity 0,5 - 5V
Fuses 30A x 2
Max cable size, DC-terminal 16 mm
Max cable size, speaker terminal 10 mm2 (7AWG)
Protection Current & thermal
Power consumption:
Idle 0,7 A
Maximum 60 A
Dimensions (mm) 350x240x73
Dimensions (inch) 13,78x 9,45x2,87
Weight 4,8 kg ( 10,6 lb)
2
(5AWG)
Subchannel:
Lowpass: 50 - 125 Hz
Filter configuration DLS A8
Front:
Highpass: OFF / 65 Hz / 85 Hz
Lowpass variable 50-125 Hz
Rear:
Highpass: OFF / 65 Hz / 85 Hz
Lowpass variable 50-125 Hz
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
DLS Svenska AB
P.O. Box 13029
S-40251 Göteborg, Sweden
Tel: +46 31 840060
Fax: +46 31 844021
E-mail: info@dls.se
www.dls.se
Loading...