SEALED
BOX
1.00
1.50
Trunk
VENTED
BOX
Total
P o r t
SINGLE-VENTED
BOX
.
Frsq.
Port Vented Sealed Port
bar
tune front
tube
tubs
band
b o x
boa
length length
for 3”
for 4”
I. D.
I. D.
(cubic
(cubic (cubic
( H Z ) ( H z ) ( H Z )
(inches) (inches)
0.75
1050
1050
I.25
52
140
0 65
0 6 0
1.90
4.25
92
I.50
50
130
76
0 75
0 75
1 90
4 50
9 2
42
120
70
0.75
1
6 2 5
90
1.50
24
105
50
0 75
2 75
00
A d
SEALED BOX,
0.75 vs.
2.0
20
SO
2m
am
VENTED BOX,
0.75 "8.
2.0
BOX,
3.5
3.5
data above is offered as a “starting point” for comparison purposes because these designs are only a few of many
possible box configurations. Be
to account
for the air volume displacement of the woofers and the
tubes.
= NOT A RECOMMENDED APPLICATION