X-PROGRAM X-A10 User manual

How to install and operate the
X-program amplifiers
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 X-program amplifiers 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.
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.
Contents
Features…………………………….. 2
Installation…………………….……. 2
Tools and materials needed………. 3
Amplifier installation kit………….... 3
Routing Wires…………………….... 3
Wiring
Power and Outputs……………..…. 4
Inputs and controls………………... 5
High and low level inputs............... 5
Input level control........................... 6
Crossovers, etc.............................. 6
Features on each model ............... 6-7
X-A10 speaker wiring:
Subwoofer…………………………... 8
X-A20 speaker wiring:
Front speakers…...……………….... 9
Subwoofer…………………………... 9
X-A30 speaker wiring:
Two speakers and subwoofer.......... 10
X-A40 speaker wiring:
Four speakers…………………….... 11
Two speakers and bridged subwoofer 11
Testing……………………………….. 12
Troubleshooting……………………... 12
Professional tips…………………….. 13
Specifications………………………... 14


 Technical Assistance
For technical assistance ask the shop where the
product was sold or the distributor in your very coun-
try. Information can also be found on our WEB-site
www.xprogram.com
We follow a policy of continuous advancement in
development. For this reason all or part of
specifications & designs may be changed without
prior notice.
DLS Svenska AB
P.O. Box 13029 - SE-40251 Göteborg - Sweden
Tel: [phone] - Fax: [phone]
E-mail: [email protected]
www.xprogram.com
X-program products are produced in Taiwan
X-program is designed, engineered and distributed by:
This product must be returned to the
separate collection system for electronic
products. Do not dispose this product
together with general household waste.
DECLARATION OF CONFORMITY
X-program amplifiers for vehicles are manufactured
in accordance with the EU directive EEC 95/54 (72/
245/EEC) and are marked with the approval number.
They are also marked in accordance with the WEEE-
directive 2002/96/EC.
The products are also produced in accordance with
the EU RoHS directive 2002/95/EC.
X-A10
X-A20
X-A30
X-A40

The models include the following
features:
- Analogue class AB technique
- High efficiency
- Low profile design
- RCA line inputs
- High level input with Auto start
- Powerful cable terminals
- Built-in active crossovers
Installation
Before you begin installation
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.
2
Disconnect Battery
Before starting the instal-
lation, always disconnect
the negative terminal of
the battery.
The X-program series of amplifiers have a compact
design that allows great flexibility in mounting. You
can mount it under a seat or 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 in an inverted or upside
down position.
X-A10 has a cooling fan built-in, make sure that
the air can circulate freely around the fan opening.
Check all locations and placements carefully before
making any cuts, drilling any holes or making any
connections.
IMPORTANT!
Use the metal screws and the plastic washer
coming with the amplifier when you do the
install. Do not use oversized screws, you may
destroy the plastic ears by doing so.
X-logo on amplifier cooling flange
The X-logo on the amplifier top is attached with
two small screws. The logo can be removed and
twisted 90 or 180 degrees, and then screwed back
in wanted position. The logo can be mounted in
four different ways to match your installation.

Stereo
head unit
3
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.
The amplifier power terminals accept AWG 4
cables using FT22 fork terminal, so If possible
buy AWG 4 = 21 mm2cable for best performance.
Both the positive wire and the ground wire must
have the same size. To avoid cable fire, be sure
not to oversize the main fuse value for the power
wires.
THE DC-FEED
Maximum main fuse values for different cable
sizes.
6 mm2(9 AWG) :25 A 10 mm2 (7AWG) :40 A
16 mm2 (5AWG) :60 A 21 mm2(4AWG) :100 A
33 mm2(2AWG) :150 A 42 mm2 (1AWG) :200 A
Routing wires
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 mm2for 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,
minimum AWG 8 = 10 mm2 or heavier
1 pc of fuseholder to install close to the
car battery + fuse 40 -50 Ampere.
20 feet of AWG 15 = 1,5 mm2wire for
remote turn on / off cable from radio.
RCA-cable for input from radio.
- 20 feet or 5 meter for trunk installations
-12 feet or 2 – 3 meter for under seat
installations
Two ring crimp terminals (RT22) –one
for connection to the battery plus and one
for the amplifier ground connection.
Two heavy fork crimp terminals (FT22) to
connect + and – to amplifer – but you do
only need them if you use heavy cable or to
make the installation look nicer.
Four to ten fork crimp terminals (FT10) to
connect the speaker cables – but you do
only need them if you use heavy cables or
want the installation to look nicer.
One fork crimp terminal to connect the
remote wire to the amplifier, but you need it
only to make it look nicer.
Four to eight splicers to connect speaker
cables to high level input cable, if high level
input is used.
Wire ties
Insulating grommet or insulating tube

Wiring
Power and Outputs
Ground Terminal ( GND )
Remote terminal ( REM )
Use only 25 ampere ATC
blade type fuses when
replacing a blown fuse.
4
Power terminal ( +12V)
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 afterwards.
Power
(Green)
Protect
(Red)
Power Light / Protect light
The power light (green ) comes on when
the amplifier is turned on.
The protect light ( red ) comes on
when the amplifier shuts down from
overheating, or a short circuit ( spea-
ker failure).
Turn off your audio system to reset the
amplifier if the red protect light is
turned on. If the red lamp doesn’t turn
off, contact your local dealer for
advice.
Fuses
For RCA cable signal input:
Connect the radio power antenna lead = remote
turn on/off from the car stereo 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.
If there is no remote voltage available from
the stereo, you must connect to the ignition key
through the radio or any accessories fuse.
For High Level input:
We recommend you to connect the remote wire as
described above. The amplifier will produce soft on
/ soft off operation this way.
In the case that there is no remote voltage
available from the car stereo or you want to simplify
the installation, the amplifier can be turned on/ tur-
ned off by the high level input voltage. This is done
automatically when the head unit is turned on. There
is a small disadvantage that this function gives soft
turn on operation but some pop sound when
switching off.
A cable up to AWG 4 (21 sq mm) fits the amplifier +
12 V terminal if using DLS FT22 fork terminals.
Be sure to use a rubber grommet or a plastic
insulating tube where the cable passes the firewall
or other places where it can be easily jammed.
Use wire ties to secure to existing cables in the
engine compartment.
DLS FH1
fuse holder
Battery
+ pole
To head unit Power
Antenna lead or
remote output.
DLS
A cable up to
AWG 4 (21 sq
mm) fits the
amplifier ground
(GND) terminal
if using DLS
FT22 fork
terminals.
A cable up to
AWG 7 (10 sq
mm) fits the
amplifier remote
(REM) terminal
if using DLS
FT10 fork
terminals.
Connect the fuse holder as close to the vehicle
battery + as possible, using AWG 4 /5 = 21 / 16
mm2 power cable. Use a ring crimp terminal to
connect to battery + and a fork terminal to
connect to the amplifier + terminal. The AWG4
cable can use an 80 Amp fuse, if the cable is
smaller, the fuse value must be lower (see table
on previous page).

Important
Use either the low level or high level input, do not
use both at same time.
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 me-
ters). 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. Connect to input socket R / L.
X-A40 has dual inputs Front R / L & Rear R / L.
Depending on your chosen configuration you can
use either two separate RCA cables, or a single
RCA cable together with an Y-split to connect both
inputs.
X-A30 has dual inputs, one for the stereo channels
(Front Channel input R / L), and one for the mono
channel (Sub Channel input R / L). Both inputs must
be connected on the mono channel input socket.
Input and controls
Low level Input Wiring
Inputs may be low level from the RCA output of the car
stereo or high level from the car stereo speaker out-
put. Low level = RCA is to prefer for the best sound
quality.
Connect left and right speaker wires coming from
the car stereo to the high level input as shown. You
must connect both plus and minus as the inputs are
balanced, connecting plus only gives lower level and
bad sound quality. By changing the polarity of plus
and minus, you can change the phase.
X-A10/20/30
On these models you connect as in this example:
X-A30
On this model the high level signal is fed internally
to SUB-channel when using high level input and the
Parallel input switch in position P SUB.
X-A40
The four channel amplifier is connected likewise,
however we have four channels.
You can feed two channels from RCA and two
channels using high level input from rear speaker
cables, or all channels from high level input.
5
High level input socket and plugs.
Automatic turn on when using high level input.
The amplifier turns on automatically when using high
level input, you don’t need to connect a separate
remote wire from your head unit.
For a soft turn ON /OFF operation we recommend
you to use a remote wire, if this is available.
Parallel input on X-A30, X-A40
If you don’t have dual line cables to
Front & Rear channel inputs you can
use a single line cable. Connect to
the stereo Front input sockets and
set the Parallel input swich to posi-
tion P SUB (X-A30)
or
P REAR (X-A40) and the signal is
fed to both input sockets
automatically.
High Level Input wiring
Hi level input plug for Front channels.
High Input
(Front) White: L ch.+
White/Black: L ch.-
Grey/Black: R ch.-
Grey: R ch.+
High Input
(Front Ch) White: L ch.+
White/Black: L ch.-
Grey/Black: R ch.-
Grey: R ch.+
Hi level input plug for Rear channels.
High Input
(Rear) White: L ch.+
White/Black: L ch.-
Grey/Black: R ch.-
Grey: R ch.+

Input Level control
The input level control, 5V – 0,25 V,
matches the output of your radio to
the input of the amplifier. After instal-
lation is complete, make sure the in-
put of the amplifier is turned down all
the way to 5V.
The high pass filter
blocks very low
frequencies from reaching
the speakers. It is mostly
used to protect small
speakers ( like 5 inch and
smaller ) from deep bass.
High Pass filter (HPF) - All models
The low pass filter is
mostly used for
subwoofers. It will allow
low frequencies only and
blocks higher frequencies.
A typical setting is 60 – 70
Hz.
The X-A10 is a mono channel amplifier mainly
intended for use with one or two subwoofers but can
also be used in full range mode.
The amplifier has the following filters / features:
Lowpass filter adjustable between 50 and 250 Hz,
the filter can be switched off.
Highpass filter selectable FULL - 70 Hz - 90 Hz.
Internal subsonic filter fixed to 25 Hz.
The XA20 is a 2-channel amplifier. Can be used
for a pair of stero speakers or a subwoofer connted
in mono bridge mode.
The amplifier have the following filters / features:
Lowpass filter adjustable from 50 to 200 Hz, the
filter can be switched off.
Highpass filter selectable FULL - 70 Hz - 90 Hz.
Internal subsonic filter fixed to 25 Hz.
6
The X-A40 is a 4-channel amplifier for use with a
front system and a subwoofer, or two front systems.
The amplifier has the following filters / features:
Lowpass filter adjustable from 50 to 100 Hz, the
filter can be switched off.
Highpass filter selectable OFF - 70 Hz - 90 Hz.
The filter can be turned off for running the amplifier
in full range.
Internal subsonic filter fixed to 25 Hz.
The X-A30 is a 3-channel amplifier for use with a
front system and a subwoofer.
The amplifier has the following filters / features:
Stereo section (front channels):
High pass filter selectable FULL - 70 Hz - 90 Hz.
Mono section (Sub channel):
Lowpass filter adjustable between 50 and 100 Hz.
Internal subsonic filter fixed to 25 Hz.
Play a 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. Increase the input
level control on the amplifier ( 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.
Set the swich in position 70 Hz or 90 Hz to activate
the filter. Test which setting sounds best.
The filter can be set at FULL position if you want to
run the amplifier in full range mode without limiting
the frequency range.
Set the switch in ON po-
sition to activate the filter.
Set the switch in OFF
position if you want to run
the amplifier in full range
mode. X-A30 has no
switch.
The frequency range of
the LP-filter is different on
each model, see the
drawings on the right.
Subsonic filter - All models
All models include a Subsonic filter that blocks
the very deepest frequencies from reaching the
speakers. The cutoff frequency is 25 Hz.
The filter is internally connected on all models and
can not be switched off.
Features / crossovers
Low Pass filter (LPF)
Crossovers/filters and other features
on each model
X-A20
X-A30
X-A40
X-A10

7
Crossovers/filters and other features on each model

Single 4 ohm subwoofer Two 4 ohm subwoofers
NOTE!
Minimum amplifier load is 2 ohm, lower
impedances may damage the amplifier. This
connection gives a 2 ohm load with two 4 ohm
subwoofers.
Filter settings
8
Speaker wiring X-A10
X-A10
NOTE!
Minimum amplifier load is 2 ohm, this connection
gives a 4 ohm load with a 4 ohm subwoofer.
For power wiring, see page 4
For High or low level input wiring, see page 5
NOTE!
The speaker
terminal has dual +
and - terminals for
easier connection if
you have more
than one sub-
woofer. They are
internally conn-
ected in parallel
and can not be
bridged.
The low pass filter (LPF)
is mostly used for
subwoofers. It will allow
low frequencies only and
blocks higher frequencies.
A typical setting is 60 –
70 Hz.
Set the switch to ON position to activate the filter.
Use this position when conncted to subwoofers.
Set the switch to OFF position if you want to run the
amplifier in full range mode.
The high pass filter (HPF)
blocks very low
frequencies from reaching
the speakers. It is mostly
used to protect small
speakers ( like 5 inch and
smaller ) from deep bass.
Set the swich in position 70 Hz or 90 Hz to activate
the filter. Test which setting sounds best.
The filter can be set at FULL position if you want to
run the amplifier in full range mode without limiting
the frequency range.
If you use the amplifier for subwoofers, set the switch
to position FULL.
+
+
-
-
-+
4/2 ohm 4 ohm
4 ohm

X-A20
Speaker wiring X-A20
Two fullrange
speakers to
channel R / L
One 4 ohm
subwoofer
bridged
9
For power wiring, see page 4
For High or low level input wiring, see page 5
NOTE!
Minimum amplifier load is 2 ohm in stereo mode,
lower impedances may damage the amplifier.
NOTE!
Minimum speaker impedance in bridged connection
is 4 ohm, this connection gives a 2 ohm load with a
4 ohm subwoofer. The load is halved when
connected in bridge mode.
Do NOT use subwoofers with lower impedance
than 4 ohm.
Connect speaker + to R ch+ and speaker - to L ch -.
Filter settings CH R/L for 2-channel stereo use
The high pass filter (HPF)
blocks very low
frequencies from reaching
the speakers. It is mostly
used to protect small
speakers ( like 5 inch and
smaller ) from deep bass.
Set the swich in position 70 Hz or 90 Hz to activate
the filter. Test which setting sounds best.
The filter can be set at FULL position if you want to
run the amplifier in full range mode without limiting
the frequency range.
If you use the amplifier for subwoofers, set the switch
to position FULL.
Filter settings CH R/L for subwoofer use
The low pass filter (LPF)
is mostly used for
subwoofers. It will allow
low frequencies only and
blocks higher frequencies.
A typical setting is 60 –
70 Hz.
Set the switch to ON position to activate the filter.
Use this position when conncted to subwoofers.
Set the switch to OFF position if you want to run the
amplifier in full range mode.
When using the amplifier
for subwoofers, set the
HPF-switch to position FULL.
++
--
+-
4 ohm

X-A30
For power wiring, see page 4
For High or low level input wiring, see page 5
10
Filter settings -Sub channel
Speaker wiring X-A30
1. Two fullrange speakers to the front channels
Filter settings R & L - stereo channels
One or two subwoofers to sub channels,
Each speaker min 4 ohm.
Connect to the upper terminals for
FR CH and FL CH.
Connect to the lower terminals for SUB CH + and -.
-+-
+
+
+
-
-
NOTE!
Minimum amplifier load is 2 ohm, lower
impedances may damage the amplifier. This
connection gives a 2 ohm load with two 4 ohm
subwoofers.
The low pass filter (LPF)
is used for subwoofers.
It will allow low
frequencies only and
blocks higher frequencies.
A typical setting is 60 –
70 Hz.
The LPF filter can not be switched OFF.
The high pass filter (HPF)
blocks very low
frequencies from reaching
the speakers. It is mostly
used to protect small
speakers ( like 5 inch and
smaller ) from deep bass.
Set the swich in position 70 Hz or 90 Hz to activate
the filter. Test which setting sounds best.
The filter can be set at FULL position if you want to
run the amplifier in full range mode without limiting
the frequency range.
4 ohm
4 ohm

11
2. Two fullrange speakers and one subwoofer
bridged to X-A40.
Subwoofer in
bridge mode
to channel RL- / RR+
Filter settings front channels FL / FR
Speaker wiring X-A40
1. Four fullrange speakers to X-A40. One pair
in front and one pair in rear.
Front speakers
Filter settings front channels FL / FR
Filter settings rear channels RL / RR
X-A40
For power wiring, see page 4
For High or low level input wiring, see page 5
Rear or front stereo speakers
connected to channels FL / FR
Rear speakers
Front and rear stereo speakers
connected to front & rear channels
+
++
+-
-
-
-
-
--
+
+
+
The high pass filter (HPF)
blocks very low
frequencies from reaching
the speakers. It is mostly
used to protect small
speakers ( like 5 inch and
smaller ) from deep bass.
Set the swich in position 70 Hz or 90 Hz to activate
the filter. Test which setting sounds best.
The filter can be set at FULL position if you want to
run the amplifier in full range mode without limiting
the frequency range.
Filter settings rear channels RL / RR
The LPF filter must
be in position OFF
The low pass filter (LPF)
is mostly used for
subwoofers. It will allow
low frequencies only and
blocks higher frequencies.
A typical setting is 60 –
70 Hz.
Set the switch to ON position to activate the filter.
Use this position when conncted to subwoofers.
The high pass filter (HPF)
blocks very low
frequencies from reaching
the speakers. It is mostly
used to protect small
speakers ( like 5 inch and
smaller ) from deep bass.
Set the swich in position 70 Hz or 90 Hz to activate
the filter. Test which setting sounds best. Or set the
switch in OFF position. Listen and judge yourself
what sounds best in your installation.
4 ohm

12
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.
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 multi meter.
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 MINU-
TES.
The amplifier is overheating due to inadequate venti-
lation. 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 heat-
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. 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 diffe-
rent speaker, the lead has a fault.
If the problem remains, the speaker or amplifier
are at fault.
Troubleshooting
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.
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.

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, re-
route 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-cables are
Quasibalanced.
SPEAKER POLARITY CHECK.
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.
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:Professional Tip:
Professional Tip: 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.
Securing wires
Use wire ties to bundle together when possible.
(But never bundle speaker wires or signal cables
together with power wires.
Professional Tip:
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.
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
13

Specifications
We follow a policy of continuous advancement in
development.
For this reason all or part of specifications & designs
may be changed without prior notice.
14
X-program X-A10 X-A20
Number of channels 1 2
Amplifier class AB AB
Power output, 4 ohm (0,1% THD) 200 W 2 x 50 W
Power output, 2 ohm (0,2% THD) 300 W 2 x 70 W
Power output, 4 ohm bridged N/A 1 x 140 W
Signal to noise ratio, A-weighted >90 dB >90 dB
Damping factor >80 >80
Frequency response 20 Hz - 30 kHz 20 Hz - 30 kHz
Input impedance, low level 22 kohm 22 kohm
Input impedance, high level 220 ohm 220 ohm
High level input with auto start Yes Yes
Parallel input switch - -
Input sensitivity 0,25 - 5V 0,25 - 5V
Filter subsonic @ 25 Hz Yes Yes
Filter high-pass Off / 70 / 90 Hz Off / 70 / 90 Hz
Filter low pass variable 50-250 Hz* 50-200 Hz *
* can be switched in/out (18 dB/oct)
Built-in fan cooling Yes -
Power consumption, idle 0,8 A 0,4 A
Power consumption, max 65A 35A
Fuse 2 x 25 A 1 x 25 A
Dimensions HxWxD(mm) 72 x 255 x 358 72 x 255 x 278
Dimensions (inch) 2,8 x 10 x 14 2,8 x 10 x 10,9
Weight 3 kg 2,3 kg
X-program X-A30 X-A40
Number of channels 3 4
Amplifier class AB AB
Power output, 4 ohm (0,1% THD) 2 x 50 W 4 x 50 W
Power output, 2 ohm (0,2% THD) 2 x 70 W 4 x 70 W
Power output, 4 ohm bridged 1 x 140 W 2 x 140 W
Power out mono sub ch. 4 ohm 1 x 120 W N/A
Power out mono sub ch. 2 ohm 1 x 180 W N/A
Signal to noise ratio, A-weighted >90 dB >90 dB
Damping factor >80 >80
Frequency response 20 Hz - 30 kHz 20 Hz - 30 kHz
Input impedance, low level 22 kohm 22 kohm
Input impedance, high level 220 ohm 220 ohm
High level input with auto start Yes Yes
Input sensitivity 0,25 - 5V 0,25 - 5V
Filter high pass, front channels Off / 70 / 90 Hz Off / 70 / 90 Hz
Filter low pass, rear channels 50 - 100 Hz*
Filter low pass Sub channel 50 - 100 Hz
Filter subsonic @ 25 Hz Yes, on all channels Yes, on all channels
* can be switched in/out
Power consumption, idle 0,7 A 0,5 A
Power consumption, max 50 A 50 A
Fuse 2 x 25 A 2 x 20 A
Dimensions HxWxD(mm) 72 x 255 x 378 72 x 255 x 398
Dimensions (inch) 2,8 x 10 x14,9 2,8 x 10 x 15,7
Weight 3,2 kg 3,5 kg
All above output power
ratings at 14,4 VDC

DLS Svenska AB
P.O. Box 13029
SE-40251 Göteborg, Sweden
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
www.dls.se