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Subwoofer Box Dayton Audio Insane UMII18-22

Ported Box for 18 inch Subwoofer

Box External Dimensions
Width × Height × Depth
55.00" × 25.00" × 54.01"
Material Thickness 0.75"
Net Internal Volume 32.50 ft3
Tuning Frequency 9 Hz
Port Area 88.9 inch2
Port Inlet
Width × Height
3.78" × 23.50"
Port Length 79.43"


Detail Size Quantity
Top / Bottom 55.00" × 54.01" 2
Front 50.47" × 23.50" 1
Rear 55.00" × 23.50" 1
Left 52.52" × 23.50" 1
Right 53.26" × 23.50" 1
Port 48.73" × 23.50" 1
Port 25.42" × 23.50" 1
Ø426.7mm 55.00" 50.47" 54.01" 52.52" 54.01" 52.52" 25.00" 23.50" Top Top Bottom Bottom Rear Front Left Right Rear Front Left Right subbox.pro
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