DLS REFERENCE SUBWOOFERS
OWNERS MANUAL
Welcome
Thank you for buying a DLS Reference series subwoofer. The
subwoofer must be installed correctly in order to work well,
this manual will show you how.
Please read the entire manual before beginning the installa-
tion.
Install the subwoofer 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.
The speakers are designed for enclosure mounting. When
installed ”open air” the power handling capacity is reduced with
30% from the nominal value.
We don’t recommend ”open
air” installations.
Connection
How to connect depends on what type of amplifier you use.
The best is to follow the instructions given in the manual for
the amplifier. Most amplifiers today have built-in lowpass
crossover and possibilities to connect your subwoofer in
bridge mode.
For wiring use high class speaker wires, min AWG13 (2.5 mm
2
).
Running-in time
Allow the speaker to play for at least 15-20 hours. After this
time the performance is correct.
RCW10
RCW12
Subwoofer enclosures
Build your enclosure in a stable and airtight material. The best is
MDF-board, 19 mm, or particle board, 22 mm. Larger enclosures
must have bracing inside to avoid vibrations. The enclosure must
be completely airtight. Use sealing compound in all joints, also
around the cable terminals. The size of the enclosure is decided
by the speaker data.
Sealed enclosures
Sealed enclosures are easy to build. The size is not critical,
but it can’t be too small. The speaker data such as Fs, Qts, Vas
decides the size of the enclosure.
Large speakers need larger boxes. Two speakers need a box of
the double size etc. The enclosure must be completely airtight.
Vented enclosures
The are built in the same way but with a vent hole (port), normally
on the front panel.
RCW10
is designed for use in both sealed and vented enclo-
sures.
RCW12
is mainly designed for use in sealed enclusure but can
also be used in vented enclosures, but the port will be quite long.
Enclosure damping
Most enclosures should be dampened inside with syntetic
(acoustic) wool or damping mat (line). Attach the damping ma-
terial on the wall opposite from the speaker and port. A sealed
enclosure should be filled up to 70-100% with acoustic wool.
Technical Assistance
For technical assistance ask the shop where the product was
sold or the distributor in your very country.You can always an
e-mail to [email protected] and ask for help
Information can also be found on our WEB-site www.dls.se
We follow a policy of continuous advancement in develop-
ment. 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: +46 31 840060
E-mail: [email protected]
www.dls.se
Warranty
This speaker is covered by warranty, depending on the condi-
tions in the country where it is sold. If the speaker is returned
for service, please include the original dated receipt with the
product.
Be sure to use the inside dimensions when
you measure.
W
H
UD
LD
Calculate the enclosure volume
When caculating the volume of an enclosure you simply multiply
the width (W) x heigth (H) x depth (D).
Use measures in dm and you will get the answer in liters.
A trapezoid box is calulated as below:
Vol = width x heigth x upper depth + lower depth
2
Technical specifications*:
RCW10
RCW12
Size
25 cm (10”)
30 cm (12”)
Impedance
2 x 4 ohm
2 x 4 ohm
Nom. power (RMS) 300 W
400 W
Max power
600 W
800 W
Peak power
800 W
1000 W
Freq. range
25 Hz - 1 kHz
20 Hz - 1 kHz
Sensitivity
84,4 dB
86,5 dB
Voice coil diameter 75 mm (3”)
75 mm (3”)
Re
2 x 3,2 ohm
2 x 3,2 ohm
X-max
+-9 mm (0,35”)
+-9 mm (0,35”)
Resonant freq. (Fs) 28,2 Hz
29,7 Hz
Vas (liters)
37,6
48,6
Vas (ft
3
)
1,32
1,71
Qts
0,37
0,38
Cone material
Aluminum
Aluminum
Magnet diameter
6,3” (160 mm)
7,4” (188 mm)
Installation depth 5,23” (133 mm)
6,06” (154 mm)
Mounting hole
9,25” (235 mm)
11,18” (284 mm)
Outer diameter
10,5” (266 mm)
12,4” (315 mm)
Weigth
11,7 lbs (5,3 kg) 20,9 lb (9,5 kg)
*All parameters measured with voice coils connected in parallel
Recommended sealed enclosures
Model Volume (liters / ft3)
RCW10
18 litres / 0,64 cu ft
RCW12
28 litres / 1 cu ft
Recommended vented enclosures
Model Volume (liters / ft3) Vent dia. Length
RCW10
20 liters / 0,7 cu ft
3” diam. 34 cm/13,4”
RCW12
33 litres / 1,16 cu ft
4” diam. 52 cm/20,4”
We recommend the sealed box for RCW12, but if you
have space for the long vent, the vented box will play very well!
All box recommendations are with voice coils connected in parallel,
but can also be used with single voice coil connection.
