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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 b 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: +46 31 840060

Fax: +46 31 844021

E-mail: info@dls.se

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).

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