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Subwoofer Box Skar Audio 4 zvx 18s recommended box

Ported Box for 18 inch

Box External Dimensions
Width × Height × Depth
40.00" × 40.00" × 31.13"
Material Thickness 1.00"
Net Internal Volume 21.00 ft3
Tuning Frequency 32 Hz
Port Area 312 inch2
Port Inlet
Width × Height
8.21" × 38.00"
Port Length 17.53"


Detail Size Quantity
Top / Bottom 40.00" × 31.13" 2
Front / Rear 40.00" × 38.00" 2
Left 29.13" × 38.00" 1
Right 19.91" × 38.00" 1
Port 17.53" × 38.00" 1
Ø428mm Ø428mm Ø428mm Ø428mm 40.00" 31.13" 29.13" 31.13" 29.13" 40.00" 38.00" Top Top Bottom Bottom Rear Front Left Right Rear Front Left Right subbox.pro
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