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4000w Peak / 2000w RMS Available in Dual 1 and Dual 2 Ohm Configurations Mega Roll Surround and Frame Etched All Black Backplate Quad Stack Magnet Structure   Specifications RE (Ohms) 2.12 4.125 FS (Hz) 26.152 25.749 VAS (L) 112.182 117.53 Qes 0.782 0.74 Qms 5.452 5.379 Qts 0.684 0.65 Le (mH) 1.797 3.55 BL (NA) 17.044 24.026 Mms (Grams) 651.24 638.994 Cms (uM/N) 56.86 59.58 Sens (dB @ 1w/1m) 85.836 86.102 Xmax 35mm 35mm T/S SPECS M18D1 M18D2 Enclosure Specifications Sealed Enclosure Not Recommended Ported Enclosure 7.0 cu ft Recommended Tuning 32Hz Recommended Port Area 112 sq in 4th Order Sealed Side 3.0 cu ft 4th Order Ported Side 9.0 cu ft 4th Order Port Area 180 sq in 4th Order Port Length 8" Displacement 0.25 cu ft Depth 14.05″ Outside Diameter 18.46″ Cut-Out 16.68″

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