VENTED BOX
Volume in liters and port size for different car- and
music types, one speaker element.
MW110:
Port diameter 3" (75 mm) outer diameter. One port.
Car type:
Small Sedan Combi
Station
Music:
car
type type
wagon
Hard rock
17 liter 17 liter
18 liter 18 liter
Port length
30 cm 30 cm
29 cm 29 cm
Disco
19 liter 19 liter
20 liter 21 liter
Port length
29 cm 29 cm
28 cm 27 cm
Normal
22 liter 22 liter
24 liter 25 liter
Port length
27 cm 27 cm
26 cm 26 cm
Deepbass
25 liter 27 liter
27 liter 29 liter
Port length
26 cm 25 cm
25 cm 25 cm
MW112:
Port diameter 3" (75 mm) outer diameter. One port.
Car type:
Small Sedan Combi
Station
Music:
car
type type
wagon
Hard rock
24 liter 24 liter
25 liter 27 liter
Port length
23 cm 23 cm
22 cm 22 cm
Disco
28 liter 27 liter
29 liter 31 liter
Port length
22 cm 21 cm
22 cm 20 cm
Normal
32 liter 31 liter
34 liter 26 liter
Port length
21 cm 21 cm
20 cm 20 cm
Deep bass
36 liter 35 liter
39 liter 41 liter
Port length
20 cm 19 cm
19 cm 18 cm
SEALED BOX
MW110:
Car type:
Small Sedan
Combi Station
Music:
car
type
type
wagon
Hard rock
16 liter 16 liter
17 liter 18 liter
Disco
18 liter 18 liter
20 liter 21 liter
MW112:
Car type:
Small Sedan
Combi Station
Music:
car
type
type
wagon
Hard rock
24 liter 23 liter
25 liter 26 liter
Disco
27 liter 27 liter
29 liter 30 liter
2-CHAMBER BAND PASS BOX WITH TWO
DLS MW110
Vb1
Vb2
P2
Speakers: 2 pcs of DLS MW110
Vb1 = 29 liters (Fb1 = 42 Hz)
Vb 2 = 14 liters (Fb2 = 84 Hz)
Port P1 = 1 pcs 3" (75 mm), length 26 cm
Port P2 = 3 pcs 3" (75 mm), length 18 cm
F-3dB = 45,5 Hz
Car type: SEDAN, music type: NORMAL, SPL: 131 dB
NOTE!
The
number of
speakers
and ports
are not
correct in
the
drawing.
3-CHAMBER BANDPASS BOX WITH TWO
DLS MW110
P2
P1
Vb1
Vb2
Vb2
P2
Speakers: 2 pcs of DLS MW110
Vb1 = 27 liters (Fb1 = 42 Hz)
Vb 2 = 9 liters (Fb2 = 84 Hz)
Port P1 = 1 pc 3" (75 mm), length 26 cm
Port P2 = 1 pc 4" (110 mm), length 20 cm
F-3dB = 45,1 Hz
Car type: SEDAN, music type: NORMAL, SPL: 131 dB
3-CHAMBER BANDPASS BOX WITH TWO
DLS MW112
The box is identical with the box in the example above.
(The number of ports are different)
Speakers: 2 pcs of DLS MW112
Vb1 = 39 liters (Fb1 = 43 Hz)
Vb 2 = 16 liters (Fb2 = 86 Hz)
Port P1 = 1 pc 3" (75 mm), length 17 cm
Port P2 = 2 pcs 4" (110 mm) in each chamber, length 25 cm
F-3dB = 46,1 Hz
Car type: SMALL, music type: NORMAL, SPL: 134 dB
Volume in liters for different car- and music types for
one speaker element in a sealed box. Most suitable for
hard rock and disco music.
P1
BOXES FOR DLS SUBWOOFERS MW110 & MW112
You can shorten the port length up to10% if
neccesary.
If you don´t know what music type to choose use
DISCO, it´s suitable for most listeners.
If you want to calculate som other box types than
these you can use the DLS-box 98 computer program
for bass box design. This is free to download from the
DLS website www.dls.se or www.audiophiles.com. You
will find it under the SUPPORT pages.