If you have any questions about this product,
contact DLS customer support center.
Thank you for buying a DLS subwoofer. This manual will
advice you in your installation. A correct installation is
important to achieve the best possible sound from your
speakers.
The speakers are mainly designed for box mounting.
When mounting the speakers "open air" the power
handling capacity is reduced with 30% from the nominal
value. Use high class speaker wires, min 2.5 mm
2
. For
example DLS SC 2x 2,5.
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CONNECTION:
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+
-
L
Connected with a 6 dB passive low-pass x-over = 6,3 mH coil in
series. X-over frequency 100 Hz.
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1234567
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L
+
-
C
Connected with a 12 dB passive low-pass x-over = 10 mH coil in
series and a bipolar capacitor of 300
µ
F in parallel.
X-over frequency 95 Hz.
Mono bridge mode with an active low-pass filter before the
amplifier. Read your amplifiers manual about connecting a sub in
bridge mode.
Active filter
Amplifier
You can find more ideas about box building in DLS
sound handbook which can be ordered from your
dealer.
On the back of this page you find some box
examples for DLS CLASSIC subwoofers.
MOUNTING:
IN THE HAT RACK OR BEHIND THE REAR SEAT.
To avoid rattle use a baffle of MDF or particle board, min
19 mm, for speaker mounting. Attach screws to all
screw holes and tighten them even to avoid the speaker
basket to get inclined.
BOX MOUNTING:
A speaker box is normally made of MDF or particle board,
min 19 mm. The box must be air-tight. Use sealing compound
in all joints and at the cable entry. Mount screws every 10 cm.
Both sealed, vented and most types of bandpass boxes are
suitable for DLS CLASSIC subwoofers. The sealed box is
good for hard rock and disco music and gives a good control
of the cone. The vented box is more efficient and gives a 3 dB
higher level than the sealed type.
In small vented boxes the ports can become rather long. You
can angle the port inside the box or mount it out from the box,
for example when the ports are mounted through the hat
rack.
There must be a free space of at least the port diameter
behind the port opening inside the box.
Use ports with conical openings to avoid noise at low
frequencies caused by air turbulence at the port edge.
DIRECTION OF THE BOX:
In a SEDAN-type car the best result is achieved when
the box with both speaker and port is directed towards
the rear seat. The port should not be directed up
through the hat rack if the speaker is directed towards
the back of the rear seat. In a large hat rack both
speakers and ports can be mounted up through the hat
rack with a box under it.
A bandpass box is normally installed with all port
openings up through the hat rack.
DLS subwoofers W108B, W110B, W112B
Two 4 ohm subs are normally connected in stereo since most
amplifiers can´t handle bridge mode connections below 4 ohms.
We recommend the use of a subsonic highpass filter. This gives
a better bass reproduction with less "rumble". In DLS and
GENESIS amplifiers this feature is built-in.
If you want to connect one or more subs in some other way,
contact your local dealer for advice.
In a small car like VW GOLF or similar, and also in
station wagon types the box should be directed towards
the back of the car.
FACTS ABOUT DLS CLASSIC SUBWOOFERS
W108B
W110B
W112B
Size
20 cm (8")
25 cm (10")
30 cm (12")
Impedance
4 ohm
4 ohm
4 ohm
Nom. power (RMS)
100 Watts*
120 Watts*
150 Watts*
Freq. range
30 Hz- 2 kHz
25 Hz-2 kHz
20 Hz-2 kHz
Sensitivity
87 dB
90 db
91 dB
Resonant freq. (Fs)
40 Hz
34,5 Hz
30,7 Hz
Vas (liters)
27,1
69,9
135
Qts
0,43
0,35
0,43
Magnet diameter
125 mm
145 mm
160 mm
Mounting depth
100 mm
112 mm
128 mm
Mounting hole
178 mm
222 mm
272 mm
Outer diameter
210 mm
258 mm
308 mm
Weigth
2,7 kg
3,8 kg
4,5 kg
*when mounted in a box
DLS Svenska AB
P.O. Box 13029
S-402 51 Göteborg, Sweden
Tel. +46 31 840060
Fax +46 31 844021
E-mail: [email protected]
