Sundown Audio M-Series M15 15" 2000W Subwoofer

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) 2.1 4.11 FS (Hz) 28.187 28.567 VAS (L) 43.142 43.385 Qes 0.72 0.705 Qms 5.232 5.233 Qts 0.633 0.622 Le (mH) 1.829 3.645 BL (NA) 17.006 23.7995 Mms (Grams) 558.9059 541.082 Cms (uM/N) 57.043 57.363 Sens (dB @ 1w/1m) 83.024 83.3097 Xmax 35mm 35mm T/S SPECS M15D1 M15D2 Enclosure Specifications Sealed Enclosure Not Recommended Ported Enclosure 4.25 cu ft Recommended Tuning 32Hz Recommended Port Area 68 sq in 4th Order Sealed Side 2.0 cu ft 4th Order Ported Side 6.0 cu ft 4th Order Port Area 120 sq in 4th Order Port Length 8" Displacement 0.23 cu ft Depth 12.06″ Outside Diameter 15.51″ Cut-Out 13.93″