User Guide

Active subwoofer box
WELCOME
Thank you for buying a DLS active subwoofer box. The subwoofer
box must be installed correctly in order to work well. This manual will
show you how to install it like a pro. Please read the entire manual
before beginning the installation.
SAFETY INSTRUCTIONS
If you do the istallation work yourself please observe the following safety
instructions:
- Disconnect the negative terminal of the battery before you start the
installation.
- Make sure you don´t damage vehicle components when drilling holes.
- Use power wiring with cable size not less than AWG 7(10 mm
2
).
- The box must be installed professionally for safety reasons. Fasten
the box so it can´t move around in case of hard retardation. Use the
velcro stripes coming with the subwoofer box.
INSTALLATION AND CONNECTION
Connect a red wire from the battery + to the amplifier terminal marked
+12,5V. Use cable size not less than AWG 7(10 mm
2
).
Use max 40 A fuse in the amplifier power cable not more than 30 cm
from the vehicle battery to protect the battery and amplifier in event of a
short-circuit between it and the power amplifier. Use the fuse holder
coming with the active subwoofer. The active subwoofer has no internal
fuse.
Connect a black wire from the amplifier terminal marked GND to the
closest negative vehicle ground.
Connect a remote wire from the remote terminal on the amplifier to the
control output on the car stereo equipment (e.g. for electronic aerial or
amplifier). If you use the RCA inputs the remote wire is normally
integrated with the RCA cable. The box sould be installed in the rear
trunk with the speaker directed backwards.
ASB 308
ASB 310
INPUTS
Left Right
INPUTS
High level
L+ L- R- R+
LP filter
Hz
250 50
Max Min +180 0
GAIN PHASE
REMOTE GND +12,5V
Connections using RCA input
Use a suitable RCA signal cable to connect between car stereo head
unit and sub box amplifier as seen below.
INPUTS
Left Right
INPUTS
High level
L+ L- R- R+
LP filter
Hz
250 50
Max Min +180 0
GAIN PHASE
REMOTE GND +12,5V
FM1 107,3
Connections using High Level input
DLS Svenska AB
P.O. Box 13029
SE-40251 Göteborg, Sweden
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
www.dls.se
Phase control (PHASE)
The phase control 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 the bass sound coming from the front.
The best sound is often obtained in the beginning. If you
turn the knob too much, the bass sound becomes bad.
+180 0
PHASE
Low Pass Filter (LP filter)
The LP-filter allow low frequencies only and blocks
higher frequencies.
A typical setting is 60 – 80 Hz.
Choose the setting that sounds best in your car.
LP filter
Hz
250 50
Input Level control (GAIN)
Max Min
GAIN
The input level control matches the output of your radio
to the input of the amplifier. After installation is complete,
make sure the GAIN control of the amplifier is turned
down to min. Play a tape or CD, make sure all bass and
treble settings, or equalizer, are flat. Turn the volume of
the radio up until you reach a normal listening level.
Increase the gain control until you hear an increase in
bass level. You may have to alternate between finely
tuning GAIN control and LP filter to optimize the sound.
Warranty service
This product is covered by warranty, depending on the conditions in the
country where it is sold. If the speaker is returned for service, please
include the original dated receipt with the product.
SPECIFICATIONS
ASB308 ASB310
RMS Power 180 W 180 W
Nominal impedance 4 ohm 4 ohm
Speaker 8” (20 cm) W308B 10” (25cm) MW110
Supply voltage 12 - 14 volt 12-14 volt
Phase control 0-180 degrees 0-180 degrees
Crossover, lowpass 50-250 Hz variable 50-250 Hz variable
High and low level input
Dimensions, cm 44,5 x 32,5 x 24 /15 47,5 x 33 x 27 /19
Dimensions, inch 17,5 x 12,8 x 9,5 / 5,9 18,7 x 13 x 10,6 / 7,5
Weight 11 kg (24 lb) 14 kg (30,8 lb)
FM1 107,3
Use 40 Amp fuse
RCA signal cable
DLS
fuse holder
+ -
Battery
12 V
DLS
fuse holder
+ -
Battery
12 V
Use 40 Amp fuse
Left +
Left -
Right +
Right -
Connect in parallel
with rear speakers
or direct to stereo
head unit speaker
output
Remote cable
Automatic remote start
When using high level input to the sub box amplifier
the amplifier turns on automatically when you start
your head unit. You don´t need to connect a
separate remote wire.
Remote start
Connect a remote wire from the remote ter-
minal on the amplifier to the control output
on the car stereo head unit (e.g. for
electronic aerial or amplifier).