VENTED BOX
Volume in liters and port size for different car- and
music types, one speaker element.
W108B:
Port diameter 3" (75 mm) outer diameter. One (1) por t.
Car type:
Small Sedan Combi
Station
Music:
car
type type
wagon
Hard rock
39 liter 39 liter
42 liter 44 liter
Port length
26 cm 25 cm
25 cm 24 cm
Disco
45 liter 44 liter
47 liter 50 liter
Port length
25 cm 25 cm
24 cm 23 cm
Normal
51 liter 50 liter
54 liter 57 liter
Port length
23 cm 24 cm
23 cm 22 cm
Deep bass
57 liter 56 liter
61 liter 65 liter
Port length
22 cm 22 cm
21 cm 21 cm
W110B:
Port diameter 3" (75 mm) outer diameter. One (1) por t.
W112B:
Port diameter 4" (110 mm) outer diameter. One port.
SEALED BOX
W108B:
Car type:
Small Sedan
Combi Station
Music:
car
type
type
wagon
Hard rock
16 liter 15 liter
17 liter 17 liter
Disco
18 liter 18 liter
19 liter 20 liter
W110B:
Car type:
Small Sedan
Combi Station
Music:
car
type
type
wagon
Hard rock
27 liter 26 liter
28 liter 30 liter
Disco
30 liter 30 liter
32 liter 34 liter
W112B:
Car type:
Small Sedan
Combi Station
Music:
car
type
type
wagon
Hard rock
38 liter 38 liter
41 liter 43 liter
Disco
44 liter 43 liter
46 liter 49 liter
2-CHAMBER BAND PASS BOX WITH TWO
DLS W110B
Vb1
Vb2
P2
Speakers: 2 pcs of DLS W110B
Vb1 = 45 liters (Fb1 = 48 Hz)
Vb 2 = 21 liters (Fb2 = 96 Hz)
Port P1 = 2 pcs 3" (75 mm), length 23 cm
Port P2 = 4 pcs 3" (75 mm), length 11 cm
F-3dB = 51,5 Hz
Car type: SEDAN, music type: NORMAL, SPL: 131 dB
NOTE!
The
number of
speakers
and por ts
are not
correct in
the
drawing.
3-CHAMBER BANDPASS BOX WITH TWO
DLS W110B
P2
P1
Vb1
Vb2
Vb2
P2
Speakers: 2 pcs of DLS W110B
Vb1 = 44 liters (Fb1 = 49 Hz)
Vb 2 = 14 liters (Fb2 = 98 Hz)
Port P1 = 1 pc 4" (110 mm), length 24 cm
Port P2 = 1 pc 4" (110 mm), length 9 cm
F-3dB = 51,5 Hz
Car type: SEDAN, music type: NORMAL, SPL: 131 dB
3-CHAMBER BANDPASS BOX WITH TWO
DLS W112B
The box is identical with the box in the example above.
(The number of ports are different)
Speakers: 2 pcs of DLS W112B
Vb1 = 62 liters (Fb1 = 50 Hz)
Vb 2 = 21 liters (Fb2 = 100 Hz)
Port P1 = 1 pc 4" (110 mm), length 16 cm
Port P2 = 2 pcs 4" (110 mm) in each chamber, length 12 cm
F-3dB = 52,9 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 type music.
P1
BOXES FOR DLS SUBWOOFERS W108B, W110B & W112B
Car type:
Small Sedan Combi Station
Music:
car
type type
wagon
Hard rock
16 liter 16 liter
17 liter 18 liter
Port length
25 cm 26 cm
25 cm 25 cm
Disco
19 liter 18 liter
20 liter 21liter
Port length
24 cm 24 cm
23 cm 23 cm
Normal
21liter 21 liter
23 liter 24 liter
Port length
23 cm 23 cm
22 cm 22 cm
Deepbass
24 liter 24 liter
26 liter 28 liter
Port length
22 cm 21 cm
21 cm 21 cm
Car type:
Small Sedan Combi
Station
Music:
car
type type
wagon
Hard rock
26 liter 26 liter
28 liter 29 liter
Port length
16 cm 16 cm
15 cm 15 cm
Disco
30 liter 30 liter
32 liter 34 liter
Port length
16 cm 15 cm
15 cm 14 cm
Normal
35 liter 34 liter
37 liter 40 liter
Port length
15 cm 15 cm
14 cm 14 cm
Deep bass
39 liter 38 liter
42 liter 45 liter
Port length
13 cm 14 cm
14 cm 13 cm
If you want to calculate som other box type 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.
