VENTED BOX
Volume in liters and port size for different car- and
music types, one speaker element.
W310:
Port diameter 3" (75 mm) outer diameter. One port.
Car type: Small Sedan Combi Station
Music: car type type wagon
Hard rock 23 liter 22 liter 24 liter 25 liter
Port length 19 cm 19 cm 19 cm 18 cm
Disco 26 liter 25 liter 27 liter 29 liter
Port length 19 cm 18 cm 18 cm 17 cm
Normal 30 liter 29 liter 32 liter 34 liter
Port length 17 cm 18 cm 17 cm 17 cm
Deepbass 34 liter 33 liter 36 liter 38 liter
Port length 17 cm 16 cm 16 cm 16 cm
W312:
Port diameter 4" (110 mm) outer diameter. One port.
Car type: Small Sedan Combi Station
Music: car type type wagon
Hard rock 36 liter 36 liter 38 liter 40 liter
Port length 29 cm 29 cm 28 cm 28 cm
Disco 41 liter 40 liter 43 liter 45 liter
Port length 27 cm 28 cm 27 cm 26 cm
Normal 47 liter 46 liter 50 liter 53 liter
Port length 27 cm 26 cm 26 cm 25 cm
Deep bass 52 liter 51 liter 56 liter 59 liter
Port length 25 cm 25 cm 24 cm 24 cm
SEALED BOX
W310:
Car type: Small Sedan Combi Station
Music: car type type wagon
Hard rock 22 liter 22 liter 24 liter 25 liter
Disco 26 liter 25 liter 27 liter 29 liter
W312:
Car type: Small Sedan Combi Station
Music: car type type wagon
Hard rock 35 liter 34 liter 37 liter 39 liter
Disco 39 liter 39 liter 42 liter 44 liter
2-CHAMBER BAND PASS BOX WITH TWO
DLS W310
Vb1
Vb2
P2
Speakers: 2 pcs of DLS W310
Vb1 = 40 liters (Fb1 = 47 Hz)
Vb 2 = 18 liters (Fb2 = 94 Hz)
Port P1 = 2 pcs 3" (75 mm), length 29 cm
Port P2 = 3 pcs 3" (75 mm), length 10 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
DLS W310
P2 P1
Vb1
Vb2 Vb2
P2
Speakers: 2 pcs of DLS W310
Vb1 = 36 liters (Fb1 = 46 Hz)
Vb 2 = 12 liters (Fb2 = 92 Hz)
Port P1 = 1 pc 3" (75 mm), length 15 cm
Port P2 = 1 pc 4" (110 mm), length 12 cm
F-3dB = 49,3 Hz
Car type: SEDAN, music type: NORMAL, SPL: 131 dB
3-CHAMBER BANDPASS BOX WITH TWO
DLS W312
The box is identical with the box in the example above.
(The number of ports are different)
Speakers: 2 pcs of DLS W312
Vb1 = 57 liters (Fb1 = 48 Hz)
Vb 2 = 19 liters (Fb2 = 96 Hz)
Port P1 = 1 pc 4" (110 mm), length 19 cm
Port P2 = 2 pcs 4" (110 mm) in each chamber, length 14 cm
F-3dB = 51,3 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 W310 & W312
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.