If you have any questions about this product,
contact DLS customer support center.
Thank you for buying a DLS X12 subwoofer. This manual
will advice you in your installation. A correct installation
is important to achieve the best possible sound from
your speakers. This speaker are mainly designed for
box mounting. Use high class speaker wires, min AWG
13 (2.5 mm
2
). For example DLS SC 2x 2,5.
CONNECTION:
Connected with a 6 dB passive low-pass x-over = 10 mH coil in
series. X-over frequency 90 Hz. Voice coils connected in series to
6 ohm.
You find more ideas about boxes in the DLS sound
handbook which can be ordered from your dealer.
It is also available in PDF-format on our WEB site
MOUNTING:
BOX MOUNTING:
A speaker box is normaly made of MDF or particle board,
min 19 mm (0,75"). The box must be air-tight. Use sealing
compound in all joints and at the cable entry. Mount screws
every 10 cm (4"). Both sealed and vented boxes are suitable
for DLS X12 subwoofer. 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.
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.
FASTENING OF DRIVER:
X-12 is an extremely heavy speaker. It is most
important that the driver is fastened properly in the box.
Use the attached nuts and bolts.
ENCLOSURE VOLUMES:
We recommend you to use either a 30 liter (1,06 ft
3
)
sealed box or a 42 liter (1,48 ft
3
) vented box with a
39 cm (15,35") long 4" port (or 2 pcs of 3" ports with
the same length). These volumes will suit most cars
and has been proved to work well.
Each voice coil has in impedance of 3 ohms. If they are
connected in series the resulting impedance is 6 ohms. If they are
connected in parallel the resulting impedance is 1,5 ohms. Make
sure to connect in a way that don´t ruin the amplifier. You must
always use both voice coils, either in series or in paralell
connection.
We recommend the use of a subsonic highpass filter. This gives
a better bass reproduction with less "rumble". In DLS 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.
FACTS ABOUT DLS X 12
DLS X 12 subwoofer
DLS Svenska AB
P.O. Box 13029
S-402 51 Göteborg, Sweden
Tel. +46 31 840060
Fax +46 31 844021
www.dls.se
IMPORTANT!
This speaker driver requires a very powerful
amplifier with high power and a good power supply,
for example DLS ULTIMATE A3, A6 or similar type
with a high damping factor.
.
Size 30 cm (12")
Impedance 2 x3 ohm
Nominal power (RMS) 500 Watts
Maximum peak power 1000 Watts
Freq. range 15 Hz - 300 Hz
Sensitivity 90 db*
Resonant freq. (Fs) 35,7 Hz*
Vas (liters / ft
3
) 52,3* / 1,85
Qts 0,33*
Magnet diameter 190 mm / 7,48"
Magnet weight 145 oz / 4,1 kg
Mounting depth 155,6 mm / 6,12"
Mounting hole 285mm / 11,22"
Outer diameter 317,5 mm / 12,5"
Weight 12,7 kg / 28 lb
* measured with the voice coils connected in series to 6 ohm
L
+
-
+
+
--
Active filter Amplifier
Connection in stereo with an active X-over filter. Voice coils
connected in stereo mode (one coil connected to left channel and
one to the right channel.
Active filter Amplifier
Connection in mono bridge mode with an active x-over. Voice
coils connected in series. If you have a 1 ohm stable amplifier the
voice coils should be connect in parallel for best performance.