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) port.
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) port.
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
DLSW110B
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 ports
are not
correct in
the
drawing.
3-CHAMBER BANDPASS BOX WITH TWO
DLSW110B
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
DLSW112B
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.