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Ported Box
for Dual 18 inch Subwoofers
| Slot (Front Panel)
Net Internal Volume: 13 ft3.
Port Area: 300 in2.
Tuning Frequency: 30 Hz.
Sealed Box
for Dual 18 inch Subwoofers
Net Internal Volume: 7.1 ft3.
Ported Box
for 18 inch Subwoofer
| Slot (Front Panel)
Net Internal Volume: 5.2 ft3.
Port Area: 26.9 in2.
Tuning Frequency: 15.6 Hz.
Ported Box
for 18 inch Subwoofer
| Slot (Front Panel)
Net Internal Volume: 5.3 ft3.
Port Area: 69.8 in2.
Tuning Frequency: 37 Hz.
Ported Box
for 18 inch Subwoofer
| Slot (Front Panel)
Net Internal Volume: 10.5 ft3.
Port Area: 23.3 in2.
Tuning Frequency: 25 Hz.
Ported Box
for 18 inch Subwoofer
| Slot (Front Panel)
Net Internal Volume: 5.3 ft3.
Port Area: 77.5 in2.
Tuning Frequency: 38 Hz.
Ported Box
for 18 inch Subwoofer
| Slot (Front Panel)
Net Internal Volume: 5.3 ft3.
Port Area: 68 in2.
Tuning Frequency: 33 Hz.
Ported Box
for Dual 18 inch Subwoofers
| Pipe (Front Panel)
Net Internal Volume: 21 ft3.
Tuning Frequency: 28 Hz.