DLS MW110, W610, MW112, W612, MW12 User Manual

REFERENCE SERIES

8

8

SUBWOOFERS

W610, W612,
W710, W712
MW10, MW12,
MW110, MW112

WELCOME

Thank you for buying a DLS REFERENCE subwoofer.
The subwoofer 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.
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. In
"open air" installations the power handling capacity is
reduced by 30% from the nominal value. We dont
recommend ”open air” installations for Reference
subwooers.

IMPORTANT!

The speaker cone of MW10/110, MW12/112 is made of
magnesium, a material of low weight with excellent
acoustic qualitys.
We recommend you NEVER to touch the cone body with
you fingers. Remaining deformation of the cone body will
occour if you push it with your fingers.
Also think of the speaker weight when you mount it. If you
don´t mount it properly it can get loose.

SUBWOOFER ENCLOSURES, GENERAL

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, V as and X-max decides the size of the enclosure.
Large speakers need larger boxes. T wo speakers need a
box of the double size etc. The enclosure must be
completely airtight.
A sealed enclosure should be filled with acoustic wool up
to 75 - 100%.
A sealed enclosure has a lower efficiency than vented
enclosures but they can handle high power and are easy
to build.
A subwoofer in a sealed enclosure creates a tight bass
suitable for the audiophiles listening to classical music,
jazz and soft rock. All the Reference subwoofers are
recommended NOT to use in sealed enclosures.

CONNECTION OF SUBWOOFER

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 built­in lowpass crossover and possibilities to connect your
subwoofer in bridge mode.
Two 4 ohm subwoofers are often connected in stereo mode
since most amplifiers can´t handle bridge mode loads
below 4 ohms. If you have a DLS Ultimate amplifier it´s
possible to connect two 4 ohm subs in bridge mode, these
ampliers are 1 ohm stable.
We also recommend the use of a subsonic highpass fil­ter. This gives a better bass reproduction with less
"rumble". In most DLS amplifiers this feature is already
built-in.
For wiring use high class speaker wires, min A WG13 (2.5
mm2). For example DLS SC 2x2,5.

If you have an amplifier without built-in crossover you must
use a passive crossover between amplifier and subwoofer
like in this example:

234567

+

­Connected with a 12 dB passive low-pass x-over = 10
mH coil in series and a bipolar capacitor of 300 microFarad
in parallel. Crossover frequency is 95 Hz.

234567

L

C

VENTED ENCLOSURES

A speaker in a vented enclosure has a higher ef ficiency (3
dB) and higher power handling capacity than in a sealed
enclosure. In a vented enclosure the sound from the spea­ker and the port work together creating a higher sound
level. The sound from the port must come out in the same
phase as from the speaker otherwise the result is bad.
The size of the vented enclosure is decided by the spea­ker data just as for the sealed one.
The size of the vehicle often decides the practical size of
the enclosure. A smaller enclosure has a higher resonant
frequency than the larger one. The size of the enclosure
should not be so big that the speaker plays below it´s own
free air resonance (Fs), then it looses in power handling
capacity.
The port does not have to be fully inside the enclosure as
long as the area and length are correct.
Sometimes you need two or more ports in an enclosure.
Y ou can convert from one to two or more ports as long as
the total port area is the same.
All DLS subwoofers works well in vented boxes.

BANDPASS ENCLOSURES

In all bandpass enclosures the speakers are hidden in­side the enclosure, all sound is coming out through the
ports. There are different types of bandpass enclosures
and they have in common that they are a bit more difficult
to build. Most DLS subwoofers can be used in bandpass
enclosures.

TECHNICAL SPECIFICATIONS FOR DLS REFERENCE SUBWOOFERS

W610 W612 W710 W712

Size 25 cm (10") 30 cm (12") 25 cm (10") 30 cm (12")
Impedance 4 ohm 4 ohm 4 ohm 4 ohm
Nom. power (RMS) 180 W (max 360) 210 W (max 400) 200 W (max 400) 250 W (max 480)
Freq. range 20 Hz- 1 kHz 20 Hz-1 kHz 20 Hz- 1 kHz 20 Hz-1 kHz
Sensitivity 89,7 dB 89,2 db 90,8 dB 91 dB
Voice coil diameter 50 mm (2”) 50 mm (2”) 50 mm (2”) 50 mm (2”)
Voice coil height 22 mm (0,87”) 22 mm (0,87”) 22 mm (0,87”) 22 mm (0,87”)
Re 3,6 ohm 3,3 ohm 3,6 ohm 3,24 ohm
Voice coil inductance, 1 kHz 1,58 mH 1,53 mH 1,49 mH 1,43 mH
BL product 15,98 15,98 17,43 16,69
X-max +-9 mm (0,35”) +-9 mm (0,35”) +-9 mm (0,35”) +-9 mm (0,35”)
Suspension compliance CMS 290 271 308 279
SD- Effective piston area 314,6 cm
Resonant freq. (Fs) 32,9 Hz 28,1 Hz 32,4 Hz 28,8 Hz
Vas (liters) 40,3 77,9 42,8 80,2
Vas (ft3) 1,42 2,75 1,51 2,83
Qms 3,63 3,93 3,76 3,13
Qes 0,23 0,32 0,19 0,23
Qts 0,22 0,30 0,18 0,21
Cone material PPC PPC PPC PPC
Magnet weight 40 oz (1,13 kg) 50 oz (1,42 kg) 80 oz (2,27 kg) 100 oz (2,83 kg)
Magnet diameter 5,7" (145 mm) 6,14" (156 mm) 5,7" (145 mm) 6,14" (156 mm)
Installation depth 4,29" (109 mm) 4,72" (120 mm) 5,08" (129 mm) 5,51" (140 mm)
Mounting hole 9,13" (232 mm) 11,18" (284 mm) 9,13" (232 mm) 11,18" (284 mm)
Outer diameter 10,31" (262 mm) 12,2" (310 mm) 10,31" (262 mm) 12,2" (310 mm)
Weigth 8,16 lb (3,7 kg) 10,14 lb (4,6 kg) 11,68 lb (5,3 kg) 13,56 lb (6,15 kg)

2

452,3 cm

2

314,6 cm

2

452,3 cm

2

RECOMMENDED ENCLOSURES FOR W610, W612, W710 & W712

RUNNING-IN PERIOD

Allow the speaker to play for at least
15-20 hours. After this time the
performance is correct.

Subwoofer Volume (liters/ft3) Port Damping F3 Fb

W610 vol: 35,6 / 1,25 4” x 32 cm/12,6” Line inside 43,4 Hz 43,0 Hz
W612 vol: 41,8 / 1,47 4” x 35 cm/ 13,7” Line inside 45,6 Hz 39,1 Hz
W710 vol: 35,4 / 1,25 4” x 29 cm/1 1,4” Line inside 45,4 Hz 45,0 Hz
W712 vol: 45,6 / 1,61 4” x 19,5 cm/7,7” Line inside 50,4 Hz 45,0 Hz

SEALED BANDPASS

The speaker is installed in Vb1
playing into chamber Vb2 where
the port(s) are installed.

Vb1=rear, Vb2=front

W610

Vb1 Vb2 port Vb2

19,0 18,6 1x10,2x19 cm
0,67 ft30,66 ft31x4"x7,5" (US)
F3 Vb1: 45 Hz, Vb2: 108 Hz

VENTED ENCLOSURE

W710

Vb1 Vb2 port Vb2

25,08 18,5 1x10,2x23,5 cm
0,88 ft30,65 ft31x4"x9,25" (US)
F3 Vb1: 40 Hz, Vb2: 106,6 Hz

F3 = approximative lower frequency for
vented boxes in Hz. Often called F-3 dB point
= the point where the power is 50% lower.
Fb = Box resonant frequency

SEALED ENCLOSURE

We don´t recommend the use of
sealed enclosures for these
subwoofers

W612

Vb1 Vb2 port Vb2

31,65 38,61 2x10,2x19 cm
1,12 ft31,36 ft32 x 4" x 7,5" (US)
F3 Vb1: 45 Hz, Vb2: 96,7 Hz

W712

Vb1 Vb2 port Vb2

33,97 19,4 1x10,2x17,5 cm
1,2 ft30,68 ft31 x 4" x 6,9" (US)
F3 Vb1: 40 Hz, Vb2: 120,5 Hz