T5.122 Recommended Sealed Enclosures
Volume (ft
3
)
QTC
Tuning Freq.
Minimum
0.75
.884
52.5
Optimum
1.00
.785
50.3
Maximum
1.25
.725
49.5
T5.152 Recommended Sealed Enclosures
Volume (ft
3
)
QTC
Tuning Freq.
Minimum
1.50
.914
44.3
Optimum
2.00
.812
42.3
Maximum
2.50
.749
41.6
T5.122 Recommended Ported Enclosures
Volume (ft
3
)
Round Port Size
FB (Hz)
Tuning Freq.
Minimum
1.75
4” x 15.25”L
36.2
33.3
Optimum
2.00
4” x 14.5”L
34
31.1
Maximum
2.25
4” x 14”L
32.2
29.3
T5.152 Recommended Ported Enclosures
Volume (ft
3
)
Round Port Size
FB (Hz)
Tuning Freq.
Minimum
3.00
(2) 3” x 9.75”L
34.3
31.3
Optimum
4.00
(2) 4” x 15.75”L
32.1
28.5
Maximum
5.00
(2) 4” x 13”L
30.2
26.8
