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ENCLOSURES
All enclosures include port and subwoofer displacement. All ports are circle aero ports unless
otherwise stated.
Ported Enclosures: A ported enclosure is generally larger than a sealed enclosure
Sealed Enclosures: A sealed enclosure will be the smallest enclosure you can build. It will have a
tight low frequency response, but not as low as a ported enclosure.
OPTIMUM ENCLOSURES
PORTED NV-SW12 NV-SW15
Volume (litres) 87.38 106.4
Volume (cu.ft) 3.086 3.759
Port diameter (mm / in) 101mm / 4" 101mm / 4"
Port length (mm / in) 304mm / 11-15/16" 289mm / 11-3/8"
Tuned frequency (Hz) 28 26.2
SEALED
Volume (litres) 55.62 75.7
Volume (cu.ft) 2.043 2.68
Tuned frequency (Hz) 45 37